#Layer 3 switch router Layer 3 Switch VS. Router VLAN

[lanterntelecom]

Maximize Network Performance with MikroTik Routers and Switches

When it comes to advanced networking solutions for businesses and tech-savvy individuals, MikroTik stands out as a trusted name. Known for offering reliable, feature-rich hardware and software at competitive prices, MikroTik products are widely used in enterprise, ISP, and even home networking environments. From the robust MikroTik Cloud Router Switch to the versatile MikroTik RouterOS, the brand delivers a complete package for network optimization and management.

MikroTik Routers and Switches: An Overview

MikroTik Routers and Switches are designed to meet a variety of networking needs. Whether you're managing a small office or an entire data center, MikroTik has a device to suit your requirements. The MikroTik Router Switch provide excellent Layer 2 and Layer 3 capabilities, giving users precise control over network traffic and segmentation.

MikroTik Cloud Router Switch – Power and Performance Combined

The MikroTik Cloud Router Switch (CRS) series blends the functionalities of a switch and a router, making it a cost-effective solution for hybrid network environments. CRS devices support powerful routing features while offering high port densities, ideal for enterprise networks. Businesses benefit from its ability to handle complex configurations such as MikroTik VLAN Setup and advanced routing protocols.

Advanced Features with MikroTik RouterOS

The heart of all MikroTik devices is MikroTik RouterOS, a powerful operating system designed specifically for routing, firewalling, bandwidth management, and more. RouterOS enables network administrators to configure MikroTik Firewall Rules, set up dynamic routing, and even implement MikroTik Port Forwarding with ease. The command-line interface and Winbox utility provide flexible options for both novice and expert users.

Simplify Deployments with MikroTik Router POE

One of the highlights of MikroTik hardware is the MikroTik Router POE (Power over Ethernet). This feature allows network devices like access points or IP cameras to receive power and data through a single Ethernet cable, streamlining deployment and reducing clutter. It’s particularly useful in remote installations where running separate power lines would be inefficient.

Modular Design with MikroTik RouterBOARD

MikroTik’s Router BOARD series offers modularity and customization. These compact and durable devices are ideal for custom router builds, wireless access points, and outdoor installations. With a range of Router BOARD models available, users can choose the exact hardware specifications needed for their application.

Stay Secure with MikroTik Firmware Update

Keeping your devices secure and up-to-date is crucial. Regular MikroTik Firmware Updates not only patch security vulnerabilities but also add new features and performance enhancements. MikroTik makes it easy to upgrade firmware via Winbox or command line, ensuring your network is always protected.

Configuring Networks with MikroTik VLAN Setup and Firewall Rules

Network segmentation and security are vital in today’s digital landscape. With MikroTik VLAN Setup, administrators can create isolated networks to enhance performance and security. Similarly, MikroTik Firewall Rules allow for the control of inbound and outbound traffic, protecting the network from malicious attacks or unauthorized access.

MikroTik vs Ubiquiti: A Comparative Look

When comparing MikroTik vs Ubiquiti, both brands offer high-performance networking products, but they cater to slightly different markets. MikroTik is favored by professionals who require granular control and powerful software features at a lower cost. Ubiquiti, on the other hand, focuses on user-friendly interfaces and plug-and-play simplicity. For those who prioritize deep customization and advanced routing capabilities, MikroTik is often the better choice.

Conclusion

MikroTik continues to be a go-to brand for efficient, scalable, and customizable networking solutions. Whether you need a Cloud Router Switch, a Router POE, or simply want to explore the capabilities of RouterOS, MikroTik offers tools to meet and exceed modern networking demands. With regular Firmware Updates, powerful Firewall Rules, and flexible configuration options like VLAN Setup and Port Forwarding, MikroTik proves to be a robust competitor in today’s market.

[comxus]

How VLANs Work on a Network Switch: A Simplified Explanation

What Is a VLAN and Why Do We Need It?

A VLAN, or Virtual Local Area Network, is a technology that allows you to logically divide a physical network into separate, isolated segments.

 Devices can be grouped into distinct VLANs to improve organisation and manage traffic flow, even if they are physically connected to the same switch. By reducing pointless broadcast traffic, this division enhances network performance and efficiency.

VLANs are perfect for settings like offices, schools, or large buildings where various departments or user groups need isolated network access without requiring additional physical infrastructure because they also add a layer of security by limiting access between groups.

How Network Switches Handle VLAN Traffic

How VLAN traffic is handled by network switches Network switches ensure that traffic is appropriately segmented by managing VLAN traffic by tagging data packets with VLAN IDs. Every VLAN has a unique ID, and the switch tags devices with the relevant VLAN ID when they send data.

Until a router or Layer 3 switch is used to allow communication between them, this keeps traffic from one VLAN from combining with that of another, preserving isolation.

Only managed switches, which provide the required control, can be used to configure VLANs. In order to identify which devices are part of each virtual network segment, administrators allocate particular switch ports to specific VLANs.

Types of VLAN Ports: Access vs Trunk

A switch's VLAN ports can be classified as either trunk ports or access ports. Usually used to connect end devices such as PCs or printers, a access port is allocated to a single VLAN. It transmits and receives VLAN-specific untagged traffic.

A trunk port, on the other hand, is perfect for links between switches or between a switch and a router because it can transport traffic for multiple VLANs simultaneously.

Trunk ports employ VLAN tagging, which adds identifiers to packets and is based on the IEEE 802.1Q standard. For instance, to guarantee appropriate traffic routing, two switches with different VLANs can be connected via a trunk port.

VLAN Configuration Example (Simplified Setup)

The network is logically divided into three VLANs—HR, Sales, and IT—and a single switch in a basic network configuration to enhance security and performance.

For instance, VLAN 10 (HR) could be assigned to ports 1–4, VLAN 20 (Sales) to ports 5–8, and VLAN 30 (IT) to ports 9–12. Using a switch's CLI or GUI, you can configure VLANs by assigning ports and turning on VLAN tagging.

The VLAN structure must be planned and documented in order to guarantee effective management and prevent possible conflicts, particularly as the network grows or evolves over time.

Benefits of Using VLANs in a Network

Advantages of Networking with VLANs The first advantage that VLANs provide to networks is better security. Sensitive information is kept safe by limiting unwanted access between groups by dividing various departments or functions into distinct VLANs.

By restricting broadcast traffic to devices that are part of the same VLAN, VLANs also aid in reducing congestion and improving performance. VLANs also simplify diagnostics by isolating problems to particular VLANs, which makes network troubleshooting and management easier.

 Last but not least, VLANs are perfect for growing networks because they are highly scalable, enabling network expansion without the need for additional hardware or rewiring.

[ccnacoursetipsandticks]

A Complete Guide to What’s Covered in the CCNA Exam (2025 Update)

If you're thinking about starting a career in networking or IT infrastructure, the Cisco Certified Network Associate (CCNA) certification is a valuable first step. Widely respected in the industry, the CCNA credential demonstrates that you have a solid foundation in networking principles and the skills required to manage and troubleshoot basic network systems.

In this guide, we’ll break down what the CCNA training for exam typically includes, explain each section in simple terms, and help you understand why this knowledge matters in real-world IT environments. While Cisco occasionally updates the exam objectives, this article offers a general overview of the core topics currently covered. For the most accurate and updated details, always refer to the official Cisco website.

Why the CCNA Certification Matters

Before diving into the topics, let’s look at why the CCNA is so important:

Career Boost: It opens doors to entry-level networking jobs like Network Technician, Help Desk Analyst, and IT Support Specialist.

Industry Recognition: Cisco certifications are globally recognized and respected by employers.

Strong Foundation: It covers the basics of networking, making it a great starting point even if you're completely new to the field.

Now let’s explore what’s included in the CCNA exam and what each section means in practice.

1. Network Fundamentals

This is the backbone of the CCNA exam. You’ll need to understand how networks operate, how data travels, and the various devices and protocols that make it all work.

Key Concepts Covered:

The OSI Model and TCP/IP Protocol Suite These are frameworks that explain how data moves through a network. The OSI model has seven layers, while TCP/IP has four. Understanding these helps you troubleshoot problems and understand how devices communicate.

IPv4 and IPv6 Addressing Every device on a network needs an IP address. You'll learn about IPv4 (the older system) and IPv6 (the newer one designed to handle more devices).

Subnetting This technique divides a large network into smaller, more manageable parts. It improves performance and security.

Basic Network Devices You’ll get familiar with routers, switches, firewalls, and other essential components that keep networks running smoothly.

2. Network Access

This section focuses on how devices connect within a local area network (LAN). It also touches on some of the security features that keep networks safe.

Key Concepts Covered:

Ethernet and Wireless LAN (WLAN) Ethernet is the standard for wired connections, while WLAN covers wireless. You’ll learn how both are set up and how they function.

Switch Port Security Switches connect devices within a network. You'll learn how to configure basic security settings to prevent unauthorized access.

VLANs (Virtual Local Area Networks) VLANs allow network administrators to separate traffic logically without changing the physical setup. For example, you can create separate networks for HR and Sales even if they’re using the same switches.

Trunking Trunk links allow VLANs to communicate across switches. You’ll understand how to configure and verify these connections.

3. IP Connectivity

This section teaches you how to connect networks and route data between them—crucial for larger, more complex systems.

Key Concepts Covered:

Routing Basics You’ll learn how routers work and how they determine the best path for sending data from one network to another.

Routing Protocols There are several types of routing protocols, including:

RIP (Routing Information Protocol) – one of the oldest and simplest.

OSPF (Open Shortest Path First) – more efficient and widely used.

EIGRP (Enhanced Interior Gateway Routing Protocol) – a Cisco proprietary protocol known for fast convergence.

Static vs. Dynamic Routing Static routing requires manual configuration, while dynamic routing allows routers to communicate and adjust automatically. Both have their pros and cons depending on the network's size and complexity.

IPv4 and IPv6 Routing Similar to addressing, routing for both IPv4 and IPv6 is covered, ensuring you’re prepared for modern network environments.

4. IP Services

Beyond basic connectivity, modern networks rely on various services that enhance performance and usability.

Key Concepts Covered:

DHCP (Dynamic Host Configuration Protocol) Automatically assigns IP addresses to devices, saving time and reducing errors.

NAT (Network Address Translation) Helps preserve IP addresses and adds a layer of security by allowing multiple devices to share a single public IP.

QoS (Quality of Service) Prioritizes certain types of traffic (like video calls or voice over IP) to ensure they function smoothly.

5. Security Fundamentals

Network security is more important than ever. This section covers basic strategies to protect data and devices.

Key Concepts Covered:

Access Control Lists (ACLs) These rules filter traffic based on IP addresses, protocols, or ports to allow or deny network access.

Threat Detection and Prevention You’ll learn about common network threats like malware, phishing, and denial-of-service attacks, and how to mitigate them.

Secure Network Design Understand the basic principles of building secure networks, including firewalls, secure protocols, and segmentation.

6. Automation and Programmability

As networks become more complex, automation is key to managing them efficiently. Cisco has started including these modern skills in the CCNA curriculum.

Key Concepts Covered:

Understanding Network Automation Learn what automation is and why it’s essential for today’s large-scale networks.

Cisco DNA Center and REST APIs These tools help automate network tasks, such as device configuration and monitoring.

Introduction to Programmability Basic scripting and APIs give you a glimpse into how networks can be controlled using code.

Final Thoughts: Preparing for the CCNA Exam

Earning your CCNA certification isn’t just about memorizing terms—it’s about truly understanding how networks function in the real world. The exam challenges you to think critically, troubleshoot issues, and apply knowledge in practical scenarios.

Tips for Success:

Use Cisco’s Official Learning Resources – Start with the Cisco Press books and online training.

Practice in Labs – Whether virtual or physical, labs give you hands-on experience.

Join Study Groups – Learning with others can help clarify complex topics and keep you motivated.

Take Practice Exams – These simulate the real test and highlight areas that need more review.

Conclusion: Is the CCNA Right for You?

If you're aiming to start a career in networking, the CCNA is one of the best certifications to pursue. It gives you the foundational knowledge needed to build, manage, and troubleshoot modern networks. More importantly, it demonstrates to employers that you’re committed to developing your technical skills.

By understanding the core topics—ranging from networking basics to automation—you’ll be well-equipped to pass the exam and start your journey in the IT field with confidence.

[indionetworks00]

Complete Difference Between Router And Managed Switch?

Managed switches are increasingly being used in most business networks to connect PCs, printers, servers, and other devices within a building or campus. However, another networking equipment, the router, is frequently used to connect various devices, such as computers. So, what is the distinction between a managed switch and a router? Let's now go through this article to find the answer.

Managed Switch

A managed switch is a programmable network switch that provides higher security, flexibility, and capacity than an unmanaged or standard switch. It acts as a controller, allowing networked devices to communicate with one another efficiently. As a network switch, it operates at the OSI reference model's second tier (data link layer).

Router

A router is a networking device that connects to the Internet's various local area networks and wide area networks. It enables several computers or devices to access the Internet via a single connection. It sends data packets between networks to establish and maintain communication between two nodes in an internetwork. Additionally, it automatically selects and configures routes based on channel conditions, and sends signals in the best possible order.

Managed Switch vs Router: Difference Between Router and Switch

When comparing managed switches and routers, there are numerous factors to consider. The following are the primary differences between them:

Function - A managed switch can connect many devices while also managing ports and VLAN configuration. A router, on the other hand, simply routes data in a network and transfers it between computers or between computers and the modem.

Ports - A router typically has four LAN ports and one WAN port, but switches have many more ports, such as 12, 24, 48, and so on.

Layer - The managed switch operates at the data link layer (layer 2), whereas the router operates at the network layer (layer 3).

Applications - Routers connect two or more networks, whereas managed switches connect two or more nodes inside the same network.

Indio Networks is one of the best Managed Switch and router manufacturers in India. You can visit our official website - indionetworks.com for complete information and the best deals!

[megastephanieli-blog]

Layer 3 Switch VS. Router

In the OSI model, we know that traditional network switches operate at Layer 2 while network routers operate at Layer 3. Besides, switches are understood to be forward traffic based on MAC address, while routers perform the forwarding based on IP address. Layer 3 switches have a lot in common with traditional routers: they can also support the same routing protocols, inspect incoming packets and make dynamic routing decisions based on the source and destination addresses inside. For this reason, many networking beginners are puzzled over the definition and purpose of a Layer 3 switch. So what is on earth Layer 3 switch and how is it different from router?

Layer 3 Switch

Layer 3 switch is also called multilayer switch. It is a specialized hardware device used in network routing, which is conceived as a technology to improve network routing performance on large local area networks (LANs) like corporate intranets. A Layer 3 switch is both a switch and a router. So Layer 3 switch is a switch that can route traffic, and a router with multiple Ethernet ports has a switching functionality. It can switch packets by checking both IP addresses and MAC addresses. On this account, Layer 3 switches separates ports into VLANs and perform the routing between them, in addition to supporting routing protocols such as RIP, OSPF and EIGRP.

Layer 3 Switch VS. Router

From the basics of Layer 3 switch, it may seem to perform the same functionality with the router. In fact, they have some key distinction facts. The key differences between Layer 3 switches and routers lay in the hardware technology used to build the unit. The hardware inside a Layer 3 switch merges that of traditional switches and routers, replacing some of a router’s software logic with hardware to offer better performance in some situations. The table below illustrates the differences between Layer 3 switch and router.

Main Differences:

Cost - Layer 3 switch is much more cost effective than router for delivering high-speed inter-VLAN routing. High performance router is typically much more expensive than Layer 3 switch.

Port density - Layer 3 switch has much higher port count while router has a lower port density than Layer 3 switch.

Flexibility - Layer 3 switch allows you to mix and match Layer 2 and Layer 3 switching. It means that you can configure a Layer 3 switch to operate as a normal Layer 2 switch.

WAN technologies support - Layer 3 switch is limited to usage over LAN environment where Inter VLAN routing can be performed. However, when it comes to working on WAN and edge technologies, Layer 3 switch lags behind. Router is the front runner in such scenario where WAN technologies such as Frame Relay or ATM need to be fostered.

Hardware/Software decision making - The key difference between Layer 3 switch and router lies in the hardware technology used to making forwarding decision. Layer 3 switch uses ASICs for forwarding decisions. Conversely, the router makes forwarding decisions based on hierarchical Layer-3 addresses.

Layer 3 Switch with VLANs

As here is mentioned the VLAN, so let’s talk about it firstly. A VLAN (virtual LAN) is a logical subnetwork that can group together a collection of devices from different physical LANs. VLANs can improve the overall performance of busy networks. So they are often set up for improved traffic management by larger business computer networks. With a VLAN, traffic can be handled more efficiently by network switches.

Each virtual LAN must be entered and port-mapped on the switch. Routing parameters for each VLAN interface must also be specified. Some Layer 3 switches implement DHCP support that can be used to automatically assign IP addresses to devices within a VLAN. Alternatively, an outside DHCP server can be used, or static IP addresses configured separately. The diagram below shows an example of a layer 3 switching routing between VLANs through its two VLAN interfaces.

These switches are most commonly used to support routing between virtual LANs (VLANs). Benefits of Layer 3 switches for VLANs include:

Reduction in the amount of broadcast traffic

Simplified security management

Improved fault isolation

Conclusion

From what we have discusses, Layer 3 switch may be more preferable in result of its capability of routing and switching. Besides, it can perform as a top of rack device and a distributed core switching layer at the same time. This reduces the L2 complexity of the client access layer, which makes the network more reliable and easier to manage. FS.COM can provide a comprehensive, scalable and secure portfolio of switches for enterprise and service provider networks. There are also a huge stock of compatible fiber optic transceivers and cables.

[dexterbenson-blog]

Cisco CCNA Security 210-260 Certification Exam Details

Cisco 210-260 certifications are globally accepted and add significant value to your IT professional. The certification offers you a serious knowledge of each of the workings with the network models and also the devices that are utilized from it. NWexam.com is proud to offer for you the ideal Cisco Exam Guides. 

The Cisco 210-260 Exam is challenging, and thorough preparation is important for achievement. This cert guide was created to enable you to plan the CCNA Security certification exam. Its content has an in depth list of the individuals covered around the Professional exam. The following tips for your IINS might help make suggestions with the study process for the certification.

To have Implementing Cisco Network Security certification, you need to pass IINS 210-260 exam. This exam is produced remembering the input of pros in the market and reveals how Cisco products are found in organizations around the globe. 210-260 Implementing Cisco Network Security Exam Summary

? Exam Name: Implementing Cisco Network Security ? Exam Code: 210-260 ? Exam Price: $300 (USD) ? Duration: 90 mins ? Number of Questions: 60-70 ? Passing Score: Variable (750-850 / 1000 Approx.) 210-260 Exam Guide: ? How I pass Cisco 400-201 Certification in first attempt? ? How to arrange for 400-201 exam on CCIE Supplier Topics covered in the CCNA Security 210-260 Exam [1]. Security Concepts (12%)

1 Common security principles a) Describe confidentiality, integrity, availability (CIA) b) Describe SIEM technology c) Identify common security terms d) Identify common network security zones 2 Common security threats a) Identify common network attacks b) Describe social engineering c) Identify malware d) Classify the vectors of internet data loss/exfiltration 3 Cryptography concepts a) Describe key exchange b) Describe hash algorithm c) Assess symmetric and asymmetric encryption d) Describe digital signatures, certificates, and PKI 4 Describe network topologies a) Campus area network (CAN) b) Cloud, wide area network (WAN) c) Data center d) Small office/home office (SOHO) e) Network to protect an on-line environment

[2]. Secure Access (14%) 1 Secure management a) Compare in-band and out-of band b) Configure secure network management c) Configure and verify secure access through SNMP v3 using an ACL d) Configure and verify security for NTP e) Use SCP for file transfer 2 AAA concepts a) Describe RADIUS and TACACS+ technologies b) Configure administrative access on a Cisco router using TACACS+ c) Verify connectivity on a Cisco router to a TACACS+ server d) Explain the combination of Active Directory with AAA e) Describe authentication and authorization using ACS and ISE 3 802.1X authentication a) Identify the functions 802.1X components 4 BYOD a) Describe the BYOD architecture framework b) Describe the function of mobile phone management (MDM)

[3]. VPN (17%)

1 VPN concepts a) Describe IPsec protocols and delivery modes (IKE, ESP, AH, tunnel mode, transport mode) b) Describe hairpinning, split tunneling, always-on, NAT traversal 2 Remote access VPN a) Implement basic clientless SSL VPN using ASDM b) Verify clientless connection c) Implement basic AnyConnect SSL VPN using ASDM d) Verify AnyConnect connection e) Identify endpoint posture assessment 3 Site-to-site VPN a) Implement an IPsec site-to-site VPN with pre-shared key authentication on Cisco routers and ASA firewalls b) Verify an IPsec site-to-site VPN [4]. Secure Routing and Switching (18%)

1 Security on Cisco routers a) Configure multiple privilege levels b) Configure Cisco IOS role-based CLI access c) Implement Cisco IOS resilient configuration 2 Securing routing protocols a) Implement routing update authentication on OSPF 3 Securing the control plane a) Explain the function of control plane policing 4 Common Layer 2 attacks a) Describe STP attacks b) Describe ARP spoofing c) Describe MAC spoofing d) Describe CAM table (MAC address table) overflows e) Describe CDP/LLDP reconnaissance f) Describe VLAN hopping g) Describe DHCP spoofing 5 Mitigation procedures a) Implement DHCP snooping b) Implement Dynamic ARP Inspection c) Implement port security d) Describe BPDU guard, root guard, loop guard e) Verify mitigation procedures 6 VLAN security a) Describe the protection implications of the PVLAN b) Describe the security implications of your native VLAN

[5]. Cisco Firewall Technologies (18%)

1 Describe operational strengths and weaknesses of the different firewall technologies a) Proxy firewalls b) Application firewall c) Personal firewall 2 Compare stateful vs. stateless firewalls a) Operations b) Function of hawaii table 3 Implement NAT on Cisco ASA 9.x a) Static b) Dynamic c) PAT d) Policy NAT e) Verify NAT operations 4 Implement zone-based firewall a) Zone to zone b) Self zone 5 Firewall features on the Cisco Adaptive Security Appliance (ASA) 9.x a) Configure ASA access management b) Configure security access policies c) Configure Cisco ASA interface security levels d) Configure default Cisco Modular Policy Framework (MPF) e) Describe modes of deployment (routed firewall, transparent firewall) f) Describe types of implementing high availability g) Describe security contexts h) Describe firewall services

[6]. IPS (9%)

1 Describe IPS deployment considerations a) Network-based IPS vs. host-based IPS b) Modes of deployment (inline, promiscuous - SPAN, tap) c) Placement (positioning with the IPS inside the network) d) False positives, false negatives, true positives, true negatives 2 Describe IPS technologies a) Rules/signatures b) Detection/signature engines c) Trigger actions/responses (drop, reset, block, alert, monitor/log, shun) d) Blacklist (static and dynamic) [7]. Content and Endpoint Security (12%)

1 Describe mitigation technology for email-based threats a) SPAM filtering, anti-malware filtering, DLP, blacklisting, email encryption 2 Describe mitigation technology for web-based threats a) Local and cloud-based web proxies b) Blacklisting, URL filtering, malware scanning, URL categorization, web application filtering, TLS/SSL decryption 3 Describe mitigation technology for endpoint threats a) Anti-virus/anti-malware b) Personal firewall/HIPS c) Hardware/software encryption of local data

What type of questions is on the Cisco 210-260 exams? ? Single answer multiple choice ? Multiple answer multiple choice ? Drag and Drop (DND) ? Router Simulation ? Testlet CCNA Security 210-260 Practice Exam Questions. Grab an awareness from these Cisco 210-260 sample questions and boost your 210-260 exam preparation towards attaining an Implementing Cisco Network Security Certification. Answering these sample questions is likely to make informed about the types of questions you can anticipate for the actual exam. Doing practice with CCNA Security IINS questions and answers ahead of the exam wherever possible is the key to passing the Cisco 210-260 certification exam.

210-260 Implementing Cisco Network Security Sample Questions:-

01. Which type of traffic inspection uses pattern matching? a) Signature-based inspection b) Statistical anomaly detection c) Protocol verification d) Policy-based inspection Answer: a

02. Which from the following authentication mechanisms can be used with SNMP version 3? (Choose two) a) AES b) MD5 c) 3DES d) SHA Answer: b, d

03. Is there a most typical type of spoofing? a) Application spoofing b) Service spoofing c) DHCP spoofing d) Ip spoofing e) MAC address spoofing Answer: d 04. Which option mitigates VLAN Hopping and Double-tagging VLAN Hopping Attacks? a) Ensuring that the native VLAN in the trunk ports differs from the native VLAN in the user ports b) Making sure that the native VLAN with the trunk ports is the same as the native VLAN from the user ports c) Setting a corner port to “off.” d) Enabling auto trunking negotiations. Answer: a

05. The kind of attack is prevented if you configure Secure Shell (SSH)? a) DoS session spoofing b) Man-in-the-middle attack c) Dictionary attack d) Buffer overflow Answer: b

06. Which in the following is not part of an IKE Phase 2 process? a) Main mode b) Specifying a hash (HMAC) c) Running DH (PFS) d) Negotiating the transform set to utilize Answer: a

07. What are three key features of URL filtering? (Choose three) a) Predefined URL categories b) Malware protection c) Custom URL categories d) Dynamic content analysis Answer: a, c, d 08. What sort of VPN technologies are apt to be employed in a site-to-site VPN? a) SSL b) TLS c) HTTPS d) IPsec Answer: d

09. Which two statements are true of the present threatscape? (Choose two) a) We now have marketplace is the only industry that is certainly exempt from attack. b) The threat landscape is actually evolving. c) Due to recent improvements in security technology, password attacks not play a significant role in the threatscape. d) It is so complex that it must be impossible to catalog in its entirety. Answer: b, d

10. Which three statements are true about firewalls? (Choose three) a) If your system in a security zone is compromised, a firewall can help offer the attack within that zone. b) A firewall can prevent undesired access to a network security zone. c) Modern firewalls give you a complete network security solution. d) Firewalls typically will protect you between and within network security zones. e) A firewall can introduce a performance bottleneck. Answer: a, b, e

For more information about CCNA Security (210-260 IINS) go to see this useful web portal.

[viola-tang-blog]

Nowadays, switches are used almost everywhere from SOHO (Small Office/Home Office) to major ISPs (Internet Service Providers). Layer 2 and Layer 3 switches are the most common types of switches in our lives. Both of them have been widely used in a greater variety of commercial applications and even advanced residential projects. This article will help you understand the difference between Layer 2 and Layer 3 switch.

Definition of Switch

In a network, switch is a hardware device that filters and transfers network packets from one network device to another, like computers and routers. Hence, it is widely used in local area network (LAN) to send each incoming message by looking at their physical address, such as MAC address. In fact, a switch is commonly considered as a multiport network bridge that uses hardware addresses to process and transfer data at the data link layer (layer 2). Some switches can also process data at the network layer (layer 3) by combining routing functions. Recommend you reading this article to know what are different layers:TCP/IP vs. OSI: What’s the Difference Between the Two Models

Layer 2 and Layer 3 Switches: What Are They?

Layer 2 Switch

A Layer 2 switch basically does switching only, which means that it operates using a device's MAC address to redirect data packets from the source port to the destination port. During the manufacturing process, switches operating at Layer 2 are very fast because they are just sorting MAC addresses at a physical layer.

Layer 3 Switch

A Layer 3 switch uses IP addresses that identify locations on the network. A location can be a LAN workstation, a site in a computer’s memory, or even a different packet of data traveling through a network. It has fast switching capabilities and high port density, making it route data packets without producing extra networking hops.

Layer 2 vs. Layer 3 Switch

Both of Layer 2 switches and 3 switches have their unique characteristics. The following part will compare Layer 2 switches and Layer 3 switches from three aspects: speed, function, and address.

Speed

Usually, the switch operates at Layer 2 takes less time than Layer 3. Because all that a Layer 2 switch does is assigning MAC addresses to reroute packets from source port to destination port. In the meanwhile, a Layer 2 switch only takes a little time to examine data packets before finding the best possible route to send packets to their destination port, but a Layer 3 switch will take more time to examine.

Function

A Layer 2 switch can only switch packets from one port to another, which means devices only can communicate within the same network. Instead, a Layer 3 switch can both switch and route, which means devices can communicate within as well as outside the networks.

Address

A Layer 2 switch uses devices’ MAC addresses to redirect data packets and doesn’t interact with any higher layer addresses, such as an IP. Conversely, a Layer 3 switch can do static routing and dynamic routing, which includes IP and virtual local area network (VLAN) communications.

Conclusion

Generally, a Layer 2 switch has been used for small networks, while a Layer 3 switch has primarily been used in data centers and large campus network environment. And, as networks move toward greater complexity, Layer 3 switches will become much more of necessity, especially for larger networks. To choose a Layer 2 switch or a Layer 3 switch, that may depend on your actual demands.

[seovoiceskills]

Cisco Certified Entry Networking Technician

Course Objectives :

Cisco Certified Entry Networking Technician (CCENT v. 2.0) validates the ability to install, operate and troubleshoot a small enterprise branch network, including basic network security. With a CCENT, network professional demonstrates the skills required for entry-level network support positions – the starting point for many successful careers in networking. The curriculum covers networking fundamentals, WAN technologies, basic security and wireless concepts, routing and switching fundamentals, and configuring simple networks. CCENT is the first step toward achieving CCNA, which covers medium size enterprise branch networks with more complex connections.

CCNA boot camp India covers the following topics as its learning objectives:

Understanding the basic concepts of networking and deploying simple LANs

Employing internet connectivity

Managing basic security for networking devices

Understanding IPv6 fundamentals

Troubleshooting issues in VLAN, configuring EtherChannel, understanding the working of STP and incorporating Layer 3 redundancy

Defining the concept, components, functions and characteristics of WAN

Configuring and troubleshooting EIGRP in an IPv4 set up, and configuring EIGRP in IPv6 environment

Installing, verifying and troubleshooting multi area OSPF

Understanding SNMP, NetFlow and syslog

Managing IOS images, licenses and Cisco devices

Module 1 – Introduction to Networking

Building a Simple Network

Understanding the Host-to-Host Communications Model

Local Area Networks LANs

Need for Switches

Operating Cisco Software

Managing Cisco IOS Configurations

Improving the User Experience

Switch Installation

Basic Switch Configuration

Initial Startup Status

Ethernet and Switch Operation

Lab Topology Diagram Lab Overview

Troubleshooting Common Switch Media

Troubleshoot Connectivity Lab Overview

Moduel 2 – Routing and IP Addresses

Establishing Internet Connectivity

IP Address Classes

IP Resolution

Summary of Layer 3

Understanding IP Addressing and Subnets

TCP/IP Transport Layer Functions

TCP vs. UDP Analogy

TCP Characteristics and Summary

Exploring the Functions of Routing

Configuring a Cisco Router

Route Configuration and Setup

Exploring the Packet Delivery Process

Enabling Static Routing

Managing Traffic Using ACLs

Enabling Internet Connectivity

Improved Usability of CLI Lab

Enabling Static Routing

Configure DHCP

Configure NAT

Configure NAT with PAT

Module 3 – Security & Filtering of Traffic

Securing Administrative Access

Enhancing the Security of the Initial Configuration

Enhancing Security of Routers and Switches

Implementing Device Hardening

Device Hardening

Implementing Traffic Filtering with ACLs

Filtering Traffic with ACLs

Module 4 – Routing Protocols

Implementing VLANs & Trunks

Configuring a Trunk & Physical Redundancy in a LAN

VLAN Summary

Routing Between VLANs

Configuring Router with a Trunk Link

Configuring Expanded Switched Networks

Cisco Network Device As a DHCP Server

Configuring a DHCP Server

DHCP Pools

Introducing WAN Technologies

Dynamic Routing Protocols

Distance Vector and Link-State Routing Protocols

Link-State Routing Protocols

Implementing OSPF

Module 5 – IP Version 6

Intro to IP version 6

IP version 6

Configure and Verify IPv6

Understanding IPv6

[swiftaugustblog-blog]

VPN vs VLAN: What's the Difference?

As the popularity of the Internet has grown, many businesses are seeking for approaches to extend their own networks. First came Intranets, which are sites designed for use only by company employees. Nowadays, many of them are creating their own VPN (Virtual Private Network) or VLAN (Virtual Local Area Network) to accommodate the needs of remote employees and distant offices. What is a VPN and what is VLAN? This post will explain these two terms and the differences between VPN vs VLAN.

What Is a VPN?

A VPN is a virtual private network that utilizes a public network (usually the Internet) to connect remote sites or users together. A typical VPN network has a main local area network (LAN) at the corporate headquarters of a company, other LANs at remote offices or facilities, and individual users that connect from out in the field. Instead of using a dedicated leased line, a VPN uses "virtual" connections routed over a public or shared infrastructure such as the Internet or service provider backbone network. Therefore subscribers who are physically isolated from the main LAN can get access to the company's private network and remotely.

VPN Applicable Network Scenario

Here is a typical example of using the VPN network. As illustrated in the figure below, Network “A” sites have established a VPN (depicted by the red lines) across the service provider’s backbone network, where Network “B” is completely unaware of it’s existence. Both Network “A” and Network “B” can harmoniously coexist on the same backbone infrastructure without interrupting each other.

What Is a VLAN–the Subcategory of VPN

A VLAN is a group of networking devices configured to communicate on one or more LANs as if they were attached to the same wire, but actually they are located on a number of different LAN segments. VLAN networks are based on logical instead of physical connections with great flexibility. A VLAN network defines broadcast domains in a Layer 2 network. A broadcast domain is the set of all devices performed to receive broadcast frames originating from any other device within the set. Broadcast domains are usually bounded by routers since routers do not forward broadcast frames.

VLAN Applicable Network Scenario

As shown in the figure below, Layer 2 network switches are used to create multiple broadcast domains based on the configuration of these switches. Each broadcast domain is just like a distinct virtual bridge within a switch. By adding a Layer 3 router, it possible to send traffic between VLANs while still containing broadcast traffic within VLAN boundaries. The router uses IP subnets to deliver traffic between VLANs. Each VLAN has a distinct IP subnet, and there is a one-to-one correspondence of VLAN and IP subnet boundaries.

VPN vs VLAN: How They Differ From Each Other?

VPN vs VLAN, they are two different concepts but related to each other. A VLAN is a subcategory of VPN, but they are designed for different hierarchies. VPN constructs range from Layer 1 to Layer 3, while VLAN is purely a layer 2 construct. A VLAN is used to group multiple computers that are not usually within the same geographical areas into the same broadcast domain. A VLAN can also segregate computers in a larger local network into smaller networks for each office or department and shielding the data so that they do not act as if they are on same network even if they are in the same switch. However, a VPN is more often related to remote access to a company’s network resources. It’s a method of creating a smaller sub network on top of an existing bigger network compared with VLAN.

Summary

No matter which one you choose over VPN vs VLAN, the foremost thing is to get reliable network switches or routers implemented in VPN or VLAN networks. FS can always fulfill your requirements by offering gigabit ethernet switch, 10gbe switch, 40gbe switches, as well as new gigabit VPN routers. They’re with powerful data-handling capacity and high compatibility for applications in data centers and enterprises.

Originally published at http://www.fiber-optic-tutorial.com/vpn-vs-vlan-whats-difference.html

[super-paradisedeer-blog]

VLAN vs Subnet: What Are Their Differences?

VLAN and Subnet are both developed to deal with segmenting or partitioning a portion of the network. And they also share such similarities as restricting broadcast domains or ensuring security through isolation of different sub-networks. However, there are obvious differences between them on operation, functionality and deeper objectives. This post will focus on VLAN vs Subnet: what's the difference?

VLAN vs Subnet: What Are They?

Subnet is a small network composed by a group of IP addresses. It is part of a larger network. Any IP address within the same Subnet can communicate with each other without using routing devices. To be clear, we can think Subnet as the department of a company, people in the same department can talk freely without going out of their department. If you want to reach a address outside of your Subnet, you will have to go through a router or modern Gigabit Ethernet switch with router functionality. Since Subnet is related to IP address, it often works at layer 3.

VLAN, also known as virtual LAN, is a group of devices on one or more LANs in regardless of physical location. That’s to say, it allows devices to be grouped together even though they are not connected on the same fiber switch. However, it often requires the network hardware/software to support VLAN functionality, for example, VLAN switch is essential for setting up a VLAN network. In VLAN, configuration of the network can be done via software extensively. Basically, VLANs are used at layer 2 to break up broadcast domains.

VLAN vs Subnet: What’s the Difference?

As mentioned above, VLAN and Subnet are totally different things in a close look. The following chart lists the differences between VLAN and Subnet in details:

VLAN vs Subnet: Which One Do You Like?

VLAN and Subnet both have their advantages and limits. For example, VLAN allows for creation of different logical and physical networks while Subnet only allows for creation of different logical networks. However, if a network sniffer is employed, users from one Subnet can discover the existence of other Subnets, this will not happen to users of different VLANs. So VLAN vs Subnet: which do you prefer?

Originally Published at http://www.fiber-optic-transceiver-module.com/vlan-vs-subnet.html

[compunetss]

What is a virtual LAN?

What is a virtual LAN?A

virtual LAN

(

VLAN

) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). ... VLANs allow network administrators to group hosts together even if the hosts are not on the same network switch.

Virtual LAN - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is a virtual LAN?

How do you set up a VLAN?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How do you set up a VLAN?

What is a VLAN how does it work and what is it used for?A

VLAN

is a set of end stations and the switch ports that connect them. You can have different reasons for the logical division, such as department or project membership. ... Each

VLAN

in a network has an associated

VLAN

ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a

VLAN

.

What is a virtual LAN (VLAN) and how does it work with my managed ...

https://kb.netgear.com/.../What-is-a-virtual-LAN-VLAN-and-how-does-it-work-with-my...Search for:

What is a VLAN how does it work and what is it used for?

What is the VLAN ID?

VLAN Tagging

is the practice of inserting a

VLAN ID

into a packet header in order to identify which

VLAN

(Virtual Local Area Network) the packet belongs to. More specifically, switches use the

VLAN ID

to determine which port(s), or interface(s), to send a broadcast packet to.

What is VLAN Tagging? Why should I enable VLAN Tagging support ...

https://www.bluecoat.com/sites/default/files/documents/files/VLAN_Tagging.1.pdfSearch for:

What is the VLAN ID?

What is the use of VLAN?A

VLAN

is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because

VLANs

are based on logical instead of physical connections, they are extremely flexible.

Understanding and Configuring VLANs - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/.../vlans.htmlSearch for:

What is the use of VLAN?

What is VLAN stand for?Virtual Local Area Network

VLAN stands for

Virtual Local Area Network. A

VLAN

is a network that collects a set of network ports on a switching device into a single broadcast domain.

VLANs

are most often used over Ethernet networks.Dec 1, 2012

VLANS - Virtual Local Area Networks (IEEE 802.1Q) - InetDaemon.Com

www.inetdaemon.com/tutorials/networking/lan/vlan/Search for:

What is VLAN stand for?

What is the full form of VLAN?

VLANs

are configured through software rather than hardware, which makes them extremely flexible. One of the biggest advantages of

VLANs

is that when a computer is physically moved to another location, it can stay on the same

VLAN

without any hardware reconfiguration.

What is VLAN? Webopedia Definition

www.webopedia.com/TERM/V/VLAN.htmlSearch for:

What is the full form of VLAN?

What are the advantages of using Vlans?

Advantages of VLANs

.

VLANs

provide a number of

advantages

, such as ease of administration, confinement of broadcast domains, reduced broadcast traffic, and enforcement of security policies.

VLANs

provide the following

advantages

:

VLANs

enable logical grouping of end-stations that are physically dispersed on a network.

Advantages of VLANs - NetApp

https://library.netapp.com/.../GUID-C9DA920B-F414-4017-8DD1-D77D7FD3CC8C.ht...Search for:

What are the advantages of using Vlans?

How do you route between VLANs?

Step-by-Step Instructions

Enable routing on the switch with the ip routing command. ...

Make note of the VLANs that you want to route between. ...

Use the show vlan command in order to verify that the VLANs exist in the VLAN database. ...

Determine the IP addresses you want to assign to the VLAN interface on the switch.

More items...

Configure InterVLAN Routing on Layer 3 Switches - Cisco

www.cisco.com/c/en/us/support/docs/...vlan.../41860-howto-L3-intervlanrouting.htmlSearch for:

How do you route between VLANs?

What is VLAN bridge setup?In a LAN environment,

VLANs

divide broadcast domains. ... This type of routing is called inter-

VLAN

routing. On a smart switch, you can

set up

inter-

VLAN

routing by creating a Layer 3 interface, that is, a switch virtual interface (SVI). By default, a port is enabled for

bridging

rather than routing.

What is VLAN Routing? | Answer | NETGEAR Support

https://kb.netgear.com/24754/What-is-VLAN-RoutingSearch for:

What is VLAN bridge setup?

What is a VLAN trunk?

VLAN Trunking

Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of

Virtual Local Area Networks

(

VLAN

) on the whole local area network. To do this, VTP carries

VLAN

information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.

VLAN Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/VLAN_Trunking_ProtocolSearch for:

What is a VLAN trunk?

What is 802.1 Q?IEEE

802.1Q

is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.

IEEE 802.1Q - Wikipedia

https://en.wikipedia.org/wiki/IEEE_802.1QSearch for:

What is 802.1 Q?

What are the main differences between a LAN and a VLAN?The purpose of a

VLAN

is simple: It removes the limitation of physically switched

LANs

with all devices automatically connected to each other. With a

VLAN

, it is possible to have hosts that are connected together on the same physical

LAN

but not allowed to communicate directly.May 29, 2015

Differences Between Physical and Virtual LANs | Virtual vs. Physical ...

www.pearsonitcertification.com/articles/article.aspx?p=2343470&seqNum=2Search for:

What are the main differences between a LAN and a VLAN?

Why would you use a VLAN?

VLAN's

can be used to create broadcast domains which eliminate the need for expensive routers. Periodically, sensitive data may be broadcast on a network. In such cases, placing only those users who can have access to that data on a

VLAN

can reduce the chances of an outsider gaining access to the data.

Virtual Local Area Networks - Computer Science & Engineering

www.cse.wustl.edu/~jain/cis788-97/ftp/virtual_lans/Search for:

Why would you use a VLAN?

What is VLAN how to configure?A virtual LAN (

VLAN

) is a broadcast domain created by switches.

VLANs

are a convenient way to connect ports from different switches and different buildings onto the same network and broadcast domain, preventing the need for a complex system of subnets.

Configuring VLANs - SearchNetworking - TechTarget

searchnetworking.techtarget.com/Configuring-VLANsSearch for:

What is VLAN how to configure?

What is the use of inter VLAN routing?Virtual LANs (

VLANs

) divide one physical network into multiple broadcast domains. But,

VLAN

-enabled switches cannot, by themselves, forward traffic across

VLAN

boundaries. So you need to have

routing

between these

VLANs

which is called

interVLAN routing

.

What is interVLAN routing?

searchnetworking.techtarget.com/answer/What-is-interVLAN-routingSearch for:

What is the use of inter VLAN routing?

What is the use of native VLAN?The

native VLAN

is the only

VLAN

which is not tagged in a trunk, in other words,

native VLAN

frames are transmitted unchanged. Per default the

native VLAN

is

VLAN

1 but you can change that: #show interface Fa0/8 trunk. ... Port Mode Encapsulation Status

Native vlan

. Fa0/8 on 802.1q other 2.Jan 6, 2013

What is difference between Default VLAN and Native VLAN? | Getting ...

https://supportforums.cisco.com/.../what-difference-between-default-vlan-and-native-vla...Search for:

What is the use of native VLAN?

What is a trunk port?A

trunk port

is a

port

that is assigned to carry traffic for all the VLANs that are accessible by a specific switch, a process known as trunking.

Trunk ports

mark frames with unique identifying tags – either 802.1Q tags or Inter-Switch Link (ISL) tags – as they move between switches.

What is a Trunk Port? - Definition from Techopedia

https://www.techopedia.com/definition/27008/trunk-portSearch for:

What is a trunk port?

What is the difference between tagged and untagged ports?The

ports between

switch and customers are "

untagged

" meaning for the customer the arriving packet is just a normal Ethernet packet. The

port between

router and switch is configured as a trunk

port

so that both router and switch know which packet belongs to which customer VLAN.Feb 25, 2014

Why and how are Ethernet Vlans tagged? - Network Engineering ...

https://networkengineering.stackexchange.com/.../why-and-how-are-ethernet-vlans-tagg...Search for:

What is the difference between tagged and untagged ports?

What is a trunk port?A

trunk port

is a

port

that is assigned to carry traffic for all the VLANs that are accessible by a specific switch, a process known as trunking.

Trunk ports

mark frames with unique identifying tags – either 802.1Q tags or Inter-Switch Link (ISL) tags – as they move between switches.

What is a Trunk Port? - Definition from Techopedia

https://www.techopedia.com/definition/27008/trunk-portSearch for:

What is a trunk port?

What is the difference between tagged and untagged ports?  What is a broadcast domain?A

broadcast domain

is a logical division of a computer network, in which all nodes can reach each other by

broadcast

at the data link layer. A

broadcast domain

can be within the same LAN segment or it can be bridged to other LAN segments. ... Routers and other higher-layer devices form boundaries between

broadcast domains

.

Broadcast domain - Wikipedia

https://en.wikipedia.org/wiki/Broadcast_domainSearch for:

What is a broadcast domain?

What is the use of Vxlan?Virtual Extensible LAN (

VXLAN

) is a proposed encapsulation protocol for running an overlay network on existing Layer 3 infrastructure. An overlay network is a virtual network that is built on top of existing network Layer 2 and Layer 3 technologies to support elastic compute architectures.

What is VXLAN (Virtual Extensible LAN)? - Definition from WhatIs.com

whatis.techtarget.com/definition/VXLANSearch for:

What is the use of Vxlan?

What is a trunk in networking?

Trunking

is a technique used in data communications transmission systems to provide many users with access to a

network

by sharing multiple lines or frequencies. As the name implies, the system is like a tree with one trunk and many branches.

What is Trunking? - Definition from Techopedia

https://www.techopedia.com/definition/9775/trunkingSearch for:

What is a trunk in networking?

What is meant by LAN?A

local area network

(

LAN

) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a

LAN

encompasses computers and peripherals connected to a server within a distinct geographic area such as an office or a commercial establishment.

What is local area network (LAN)? - Definition from WhatIs.com

searchnetworking.techtarget.com/definition/local-area-network-LANSearch for:

What is meant by LAN?

What is l2 switch?Traditional

switching

operates at

layer 2

of the OSI model, where packets are sent to a specific

switch

port based on destination MAC addresses. Routing operates at layer 3, where packets are sent to a specific next-hop IP address, based on destination IP address.Mar 17, 2015

Layer 3 versus Layer 2 Switch for VLANs - Cisco Meraki

https://documentation.meraki.com/MS/.../Layer_3_versus_Layer_2_Switch_for_VLANsSearch for:

What is l2 switch?

What is the WLAN?A

wireless local area network

(

WLAN

) is a wireless distribution method for two or more devices that use high-frequency radio waves and often include an access point to the Internet. A

WLAN

allows users to move around the coverage area, often a home or small office, while maintaining a network connection.

What is a Wireless Local Area Network (WLAN)? - Definition from ...

https://www.techopedia.com/definition/5107/wireless-local-area-network-wlanSearch for:

What is the WLAN?

What is the range of VLAN?Default Ethernet VLAN ConfigurationParameterDefaultRange

Remote SPANdisabledenabled, disabled

Translational bridge 100 to 1005

Translational bridge 200 to 1005

VLAN ID11 to 4094. Note Extended-range VLANs (VLAN IDs 1006 to 4094) are not saved in the VLAN database.

5 more rows

Extended VLAN ID - Cisco

www.cisco.com/c/en/us/td/docs/ios/12_4t/12_4t15/ht_xvlan.htmlSearch for:

What is the range of VLAN?

What is a data VLAN?A

data VLAN

is a

VLAN

that is configured to carry user-generated traffic. A

VLAN

carrying voice or management traffic would not be part of a

data VLAN

. It is common practice to separate voice and management traffic from

data

traffic.Apr 7, 2014

VLAN Segmentation (3.1) > Cisco Networking Academy's Introduction ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=4Search for:

What is a data VLAN?

What is VLAN security?VLAN hopping is a

computer security exploit

, a method of attacking networked resources on a virtual LAN (VLAN). The basic concept behind all VLAN hopping attacks is for an attacking host on a VLAN to gain access to traffic on other VLANs that would normally not be accessible.

VLAN hopping - Wikipedia

https://en.wikipedia.org/wiki/VLAN_hoppingSearch for:

What is VLAN security?

What is a SVI?A

Switched Virtual Interface

(SVI) is a

virtual

LAN (VLAN) of

switch

ports represented by one

interface

to a routing or bridging system. There is no physical

interface

for the VLAN and the SVI provides the Layer 3 processing for packets from all

switch

ports associated with the VLAN.

Switch virtual interface - Wikipedia

https://en.wikipedia.org/wiki/Switch_virtual_interfaceSearch for:

What is a SVI?

What is a router on a stick?

Router-on-a-stick

is a term frequently used to describe a setup up that consists of a

router

and switch connected using one Ethernet link configured as an 802.1q trunk link. In this setup, the switch is configured with multiple VLANs and the

router

performs all

routing

between the different networks/VLANs.

How To Configure Router On A Stick - 802.1q Trunk To Cisco Router

www.firewall.cx/cisco-technical...routers/336-cisco-router-8021q-router-stick.htmlSearch for:

What is a router on a stick?

What is VLAN IPTV setup?Some ISPs provide other services aside from Internet such as

IPTV

and phone service to their customers. ... To configure

VLAN IPTV setup

on your Nighthawk router: Use a computer or Wi-Fi device that is connected to your Nighthawk router.

Configuring VLAN IPTV setup on your Nighthawk router | Answer ...

https://kb.netgear.com/29911/Configuring-VLAN-IPTV-setup-on-your-Nighthawk-routerSearch for:

What is VLAN IPTV setup?

What is integrated routing and bridging?

Integrated Routing and Bridging

(IRB) is a technique that allows a protocol to be

bridged

as well as

routed

on the same interface on a

router

. When a

router

is configured for IRB, it maintains the existing VLAN header when forwarding the frame between the interfaces.May 31, 2008

How does VLAN routing and bridging work when using IRB? | Network ...

www.networkworld.com/.../how-does-vlan-routing-and-bridging-work-when-using-irb-...Search for:

What is integrated routing and bridging?

What is the access port?An "

access port

" is a type of connection on a switch that is used to connect a guest virtual machine that is VLAN unaware. This

port

provides the virtual machine with connectivity through a switch that is VLAN aware without requiring it to support VLAN tagging.

What Is an Access Port? - IBM

https://www.ibm.com/support/knowledgecenter/en/SSB27U_6.4.0/.../hcpa643.htmSearch for:

What is the access port?

What is VTP CCNA?

VTP

is a protocol used to distribute and synchronize identifying information about VLANs configured throughout a switched network. Configurations made to a single

VTP

server are propagated across trunk links to all connected switches in the network.Dec 5, 2003

VLAN Trunking Protocol > CCNA Self-Study (ICND Exam): Extending ...

www.ciscopress.com/articles/article.asp?p=102157&seqNum=3Search for:

What is VTP CCNA?

What is the difference between a router and a switch?What's the

difference between

a hub, a

switch, and a router

? Hubs,

switches

, and

routers

are all devices that let you connect one or more computers to other computers, networked devices, or even other networks. Each has two or more connectors called ports into which you plug in the cables to make the connection.Feb 23, 2013

What's the difference between a hub, a switch, and a router? - Ask Leo!

https://askleo.com/whats_the_difference_between_a_hub_a_switch_and_a_router/Search for:

What is the difference between a router and a switch?

What is the spanning tree protocol?

Spanning Tree Protocol

(

STP

) is a Layer 2

protocol

that runs on bridges and switches. The specification for

STP

is IEEE 802.1D. The main purpose of

STP

is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.Aug 17, 2006

Understanding and Configuring Spanning Tree Protocol (STP) on ...

www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree.../5234-5.htmlSearch for:

What is the spanning tree protocol?

What is the difference between a VLAN and a VPN?

VLAN

is a subcategory of

VPN

and

VPN

is a means of creating a secured network for safe data transmission. A

VLAN

is basically a means to logically segregate networks without physically segregating them with various switches. A

VPN

is used to connect two points in a secured and encrypted tunnel.

What is the difference between VLAN, VPN, MPLS and MPLS-VPN ...

https://www.quora.com/What-is-the-difference-between-VLAN-VPN-MPLS-and-MPLS-...Search for:

What is the difference between a VLAN and a VPN?

What is a router on a stick?

Router-on-a-stick

is a term frequently used to describe a setup up that consists of a

router

and switch connected using one Ethernet link configured as an 802.1q trunk link. In this setup, the switch is configured with multiple VLANs and the

router

performs all

routing

between the different networks/VLANs.

How To Configure Router On A Stick - 802.1q Trunk To Cisco Router

www.firewall.cx/cisco-technical...routers/336-cisco-router-8021q-router-stick.htmlSearch for:

What is a router on a stick?

What is VLAN IPTV setup?Some ISPs provide other services aside from Internet such as

IPTV

and phone service to their customers. ... To configure

VLAN IPTV setup

on your Nighthawk router: Use a computer or Wi-Fi device that is connected to your Nighthawk router.

Configuring VLAN IPTV setup on your Nighthawk router | Answer ...

https://kb.netgear.com/29911/Configuring-VLAN-IPTV-setup-on-your-Nighthawk-routerSearch for:

What is VLAN IPTV setup?

What is integrated routing and bridging?

Integrated Routing and Bridging

(IRB) is a technique that allows a protocol to be

bridged

as well as

routed

on the same interface on a

router

. When a

router

is configured for IRB, it maintains the existing VLAN header when forwarding the frame between the interfaces.May 31, 2008

How does VLAN routing and bridging work when using IRB? | Network ...

www.networkworld.com/.../how-does-vlan-routing-and-bridging-work-when-using-irb-...Search for:

What is integrated routing and bridging?

What is the access port?An "

access port

" is a type of connection on a switch that is used to connect a guest virtual machine that is VLAN unaware. This

port

provides the virtual machine with connectivity through a switch that is VLAN aware without requiring it to support VLAN tagging.

What Is an Access Port? - IBM

https://www.ibm.com/support/knowledgecenter/en/SSB27U_6.4.0/.../hcpa643.htmSearch for:

What is the access port?

What is VTP CCNA?

VTP

is a protocol used to distribute and synchronize identifying information about VLANs configured throughout a switched network. Configurations made to a single

VTP

server are propagated across trunk links to all connected switches in the network.Dec 5, 2003

VLAN Trunking Protocol > CCNA Self-Study (ICND Exam): Extending ...

www.ciscopress.com/articles/article.asp?p=102157&seqNum=3Search for:

What is VTP CCNA?

What is the difference between a router and a switch?What's the

difference between

a hub, a

switch, and a router

? Hubs,

switches

, and

routers

are all devices that let you connect one or more computers to other computers, networked devices, or even other networks. Each has two or more connectors called ports into which you plug in the cables to make the connection.Feb 23, 2013

What's the difference between a hub, a switch, and a router? - Ask Leo!

https://askleo.com/whats_the_difference_between_a_hub_a_switch_and_a_router/Search for:

What is the difference between a router and a switch?

What is the spanning tree protocol?

Spanning Tree Protocol

(

STP

) is a Layer 2

protocol

that runs on bridges and switches. The specification for

STP

is IEEE 802.1D. The main purpose of

STP

is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.Aug 17, 2006

Understanding and Configuring Spanning Tree Protocol (STP) on ...

www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree.../5234-5.htmlSearch for:

What is the spanning tree protocol?

What is the difference between a VLAN and a VPN?  What is the subnet?A subnetwork or

subnet

is a logical subdivision of an IP

network

. The practice of dividing a

network

into two or more

networks

is called

subnetting

. Computers that belong to a

subnet

are addressed with a common, identical, most-significant bit-group in their IP address.

Subnetwork - Wikipedia

https://en.wikipedia.org/wiki/SubnetworkSearch for:

What is the subnet?

How can I tell what VLAN I am on?

Click OK.

In Device Manager, open Network adapters.

Right-click on the NIC and choose Properties.

Click the Advanced tab.

Scroll down to VLAN ID.

Set the ID that you would like the NIC to have and click OK.

How do I set a virtual local area network (VLAN) tag with my network ...

https://www.startech.com/faq/networking_VLAN_taggingSearch for:

How can I tell what VLAN I am on?

What is meant by quality of service?Quality of service (QoS) refers to a network's ability to achieve

maximum

bandwidth and deal with other network performance elements like latency, error rate and uptime.

What is Quality of Service (QoS)? - Definition from Techopedia

https://www.techopedia.com/definition/9049/quality-of-serviceSearch for:

What is meant by quality of service?

How do you configure a switch?To

configure

the default gateway for the

switch

, use the ip default-gateway command. Enter the IP address of the default gateway. The default gateway is the IP address of the router interface to which the

switch

connects. Use the following command to backup the

configuration

: copy running-config startup-config.Mar 31, 2014

Basic Switch Configuration (2.1) > Cisco Networking Academy's ...

www.ciscopress.com/articles/article.asp?p=2181836&seqNum=4Search for:

How do you configure a switch?

What is a wireless VLAN?

Virtual local area networks

(

VLANs

) are a wonderful

wireless

network security tool by enabling its separation technology. You can implement

VLANs

in several ways when working with your

wireless

LAN.

VLANs

allow you to. Separate different types of traffic based on the SSID to which they connect.

Wireless Network Security: Isolating Users with VLANs - dummies

www.dummies.com/programming/.../wireless-network-security-isolating-users-with-vlan...Search for:

What is a wireless VLAN?

How can we create a VLAN on a switch?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How can we create a VLAN on a switch?

What is the VLAN?A virtual LAN (

VLAN

) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). ...

VLANs

allow network administrators to group hosts together even if the hosts are not on the same network switch.

VLANs - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is the VLAN?

What is the VLAN 1?

VLAN

Design Guidelines (3.3.2.1) Cisco switches have a factory configuration in which default

VLANs

are preconfigured to support various media and protocol types. The default Ethernet

VLAN

is

VLAN 1

. It is a security best practice to configure all the ports on all switches to be associated with

VLANs

other than

VLAN 1

.Apr 7, 2014

Design Best Practices for VLANs (3.3.2) > Cisco Networking ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=11Search for:

What is the VLAN 1?

Is native VLAN tagged or untagged?By default all ports (access links) belong to

VLAN

1 or

native VLAN

. Hello Sandy,

native vlan

is an 802.1Q concept: frames belonging to

native vlan

are sent

untagged

. ...

Vlan tagging

is happens only when frame going through the trunk and the switch strip the

vlan tag

before sending to the port where pc is connected .Jan 13, 2010

Why Native VLAN exists on a Trunk? | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/10811246/why-native-vlan-exists-trunkSearch for:

Is native VLAN tagged or untagged?

What is a trunk port in Cisco switches?Enabling Trunking.

Trunk

links are required to pass VLAN information between

switches

. A port on a

Cisco switch

is either an access port or a

trunk

port. Access ports belong to a single VLAN and do not provide any identifying marks on the frames that are passed between

switches

.Oct 25, 2002

Trunking > VLANs and Trunking - Cisco Press

www.ciscopress.com/articles/article.asp?p=29803&seqNum=3Search for:

What is a trunk port in Cisco switches?

What is the spanning tree protocol?

Spanning Tree Protocol

(

STP

) is a Layer 2

protocol

that runs on bridges and switches. The specification for

STP

is IEEE 802.1D. The main purpose of

STP

is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.Aug 17, 2006

Understanding and Configuring Spanning Tree Protocol (STP) on ...

www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree.../5234-5.htmlSearch for:

What is the spanning tree protocol?

What is the difference between a VLAN and a VPN?  What is the subnet?A subnetwork or

subnet

is a logical subdivision of an IP

network

. The practice of dividing a

network

into two or more

networks

is called

subnetting

. Computers that belong to a

subnet

are addressed with a common, identical, most-significant bit-group in their IP address.

Subnetwork - Wikipedia

https://en.wikipedia.org/wiki/SubnetworkSearch for:

What is the subnet?

How can I tell what VLAN I am on?

Click OK.

In Device Manager, open Network adapters.

Right-click on the NIC and choose Properties.

Click the Advanced tab.

Scroll down to VLAN ID.

Set the ID that you would like the NIC to have and click OK.

How do I set a virtual local area network (VLAN) tag with my network ...

https://www.startech.com/faq/networking_VLAN_taggingSearch for:

How can I tell what VLAN I am on?

What is meant by quality of service?Quality of service (QoS) refers to a network's ability to achieve

maximum

bandwidth and deal with other network performance elements like latency, error rate and uptime.

What is Quality of Service (QoS)? - Definition from Techopedia

https://www.techopedia.com/definition/9049/quality-of-serviceSearch for:

What is meant by quality of service?

How do you configure a switch?To

configure

the default gateway for the

switch

, use the ip default-gateway command. Enter the IP address of the default gateway. The default gateway is the IP address of the router interface to which the

switch

connects. Use the following command to backup the

configuration

: copy running-config startup-config.Mar 31, 2014

Basic Switch Configuration (2.1) > Cisco Networking Academy's ...

www.ciscopress.com/articles/article.asp?p=2181836&seqNum=4Search for:

How do you configure a switch?

What is a wireless VLAN?

Virtual local area networks

(

VLANs

) are a wonderful

wireless

network security tool by enabling its separation technology. You can implement

VLANs

in several ways when working with your

wireless

LAN.

VLANs

allow you to. Separate different types of traffic based on the SSID to which they connect.

Wireless Network Security: Isolating Users with VLANs - dummies

www.dummies.com/programming/.../wireless-network-security-isolating-users-with-vlan...Search for:

What is a wireless VLAN?

How can we create a VLAN on a switch?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How can we create a VLAN on a switch?

What is the VLAN?A virtual LAN (

VLAN

) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). ...

VLANs

allow network administrators to group hosts together even if the hosts are not on the same network switch.

VLANs - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is the VLAN?

What is the VLAN 1?

VLAN

Design Guidelines (3.3.2.1) Cisco switches have a factory configuration in which default

VLANs

are preconfigured to support various media and protocol types. The default Ethernet

VLAN

is

VLAN 1

. It is a security best practice to configure all the ports on all switches to be associated with

VLANs

other than

VLAN 1

.Apr 7, 2014

Design Best Practices for VLANs (3.3.2) > Cisco Networking ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=11Search for:

What is the VLAN 1?

Is native VLAN tagged or untagged?By default all ports (access links) belong to

VLAN

1 or

native VLAN

. Hello Sandy,

native vlan

is an 802.1Q concept: frames belonging to

native vlan

are sent

untagged

. ...

Vlan tagging

is happens only when frame going through the trunk and the switch strip the

vlan tag

before sending to the port where pc is connected .Jan 13, 2010

Why Native VLAN exists on a Trunk? | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/10811246/why-native-vlan-exists-trunkSearch for:

Is native VLAN tagged or untagged?

What is a trunk port in Cisco switches?  What is a telephone trunk line?In telecommunications,

trunking

is a method for a system to provide network access to many clients by sharing a set of

lines

or frequencies instead of providing them individually. This is analogous to the structure of a tree with one

trunk

and many branches.

Trunking - Wikipedia

https://en.wikipedia.org/wiki/TrunkingSearch for:

What is a telephone trunk line?

What is tagged and untagged traffic?When a port is set to access it means that the port is part of the VLAN forwarding wise (MAC table) but all frames are sent

untagged

. When frames from that VLAN are sent over a trunk they get a tag added so the receiving switch knows to which VLAN the

traffic

belongs.Apr 11, 2013

Tagged vs Untagged Traffic - 54957 - The Cisco Learning Network

https://learningnetwork.cisco.com/thread/54957Search for:

What is tagged and untagged traffic?

How do VLAN tags work?

VLAN Tagging

is the practice of inserting a

VLAN

ID into a packet header in order to identify which

VLAN

(Virtual Local Area Network) the packet belongs to. More specifically, switches use the

VLAN

ID to determine which port(s), or interface(s), to send a broadcast packet to.

What is VLAN Tagging? Why should I enable VLAN Tagging support ...

https://www.bluecoat.com/sites/default/files/documents/files/VLAN_Tagging.1.pdfSearch for:

How do VLAN tags work?

What is broadcast domain in VLAN?A

VLAN

is a group of switch ports, within a single or multiple switches, that is defined by the switch hardware and/or software as a single

broadcast domain

. A

VLAN's

goal is to group devices connected to a switch into logical

broadcast domains

to control the effect that

broadcasts

have on other connected devices.Dec 5, 2003

CCNA Self-Study (ICND Exam): Extending Switched Networks with ...

www.ciscopress.com/articles/article.asp?p=102157Search for:

What is broadcast domain in VLAN?

How many broadcast and collision domains are on a switch?With all this information, you can say that on your diagram, there are

2 broadcast domains

(1 router that separates 2 LAN segments composed by one or many switches, with only 1 VLAN per segment).Jul 15, 2008

Broadcast Domains and Collision Domains - 1734 - The Cisco ...

https://learningnetwork.cisco.com/thread/1734Search for:

How many broadcast and collision domains are on a switch?

What is Vxlan used for?Virtual Extensible LAN (

VXLAN

) is a network virtualization technology that attempts to address the scalability problems associated with large cloud computing deployments. ...

VXLAN

is an evolution of efforts to standardize on an overlay encapsulation protocol.

Virtual Extensible LAN - Wikipedia

https://en.wikipedia.org/wiki/Virtual_Extensible_LANSearch for:

What is Vxlan used for?

What is Vxlan Cisco?VLANs provide logical segmentation of Layer 2 boundaries or broadcast domains. ...

Cisco

, in partnership with other leading vendors, proposed the Virtual Extensible LAN (

VXLAN

) standard to the IETF as a solution to the data center network challenges posed by traditional VLAN technology.Nov 6, 2013

VXLAN Overview: Cisco Nexus 9000 Series Switches - Cisco

www.cisco.com/c/en/us/products/collateral/switches/.../white-paper-c11-729383.htmlSearch for:

What is Vxlan Cisco?

What is pruning in networking?VTP

pruning

helps improve proper allocation and use of

network

bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. ... By default, VLANs 2 – 1001 are

pruning

eligible, but VLAN 1 can't be

pruned

because it's an administrativeVLAN.Nov 9, 2015

What is VTP Pruning ? Explanation with Examples

www.orbit-computer-solutions.com/vtp-pruning/Search for:

What is pruning in networking?

What is a VLAN trunk?

VLAN Trunking

Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of

Virtual Local Area Networks

(

VLAN

) on the whole local area network. To do this, VTP carries

VLAN

information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.

VLAN Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/VLAN_Trunking_ProtocolSearch for:

What is a VLAN trunk?

What is a local area network connection?

Local area connections

is a phrase most often associated with Microsoft Windows Operating System(s). Typically, computers running Windows are connected to a

local area

network (LAN). When you install Windows, your network adapter is detected, and a

local area connection

is created.

What is Local Area Connection? Webopedia Definition

www.webopedia.com/TERM/L/local_area_connections.htmlSearch for:

What is a local area network connection?

What is a LAN and how does it work?A

LAN

is a somewhat ambiguous term. This could mean the internal side of a corporate network (possibly, but not usually containing routers), the wireless side of a home router, or a single switched network in the same local subnet. If you say

LAN

, you usually mean a network where all devices are in the same subnet.

How does a Local Area Network (LAN) work? - Quora

https://www.quora.com/How-does-a-Local-Area-Network-LAN-workSearch for:

What is a LAN and how does it work?

What is the function of a Layer 2 switch?Cisco

Layer 2 Switch Functions

.

Layer 2 switch

is A network device that forwards traffic based on MAC

layer

(Ethernet or Token Ring) addresses. ...

Layer 2 switches

effectively provide the same functionality. They are similar to multiport bridges in that they learn and forward frames on each port.Nov 18, 2007

Cisco Layer 2 Switch Functions | Debian Admin

www.debianadmin.com/cisco-layer-2-switch-functions.htmlSearch for:

What is the function of a Layer 2 switch?

What is a Layer 2 network?

Layer 2

refers to the Data Link

layer

of the commonly-referenced multilayered communication model, Open Systems Interconnection (OSI). The Data Link

layer

is concerned with moving data across the physical links in the network.

What is layer 2? - Definition from WhatIs.com - SearchNetworking

searchnetworking.techtarget.com/definition/layer-2Search for:

What is a Layer 2 network?

What is difference WLAN and WIFI?Technically,

WLAN

means any

wireless local area network

no matter what technology is used and

Wi-Fi

is a type of

WLAN

that follows the IEEE 802.11 standards which most

WLANs

in use today do, that's why they are commonly used interchangeably.

Wi-Fi

as a name for the standard is a trademark of the

Wi-Fi

Alliance.

What is the difference between Wi-Fi and WLAN? - Quora

https://www.quora.com/What-is-the-difference-between-Wi-Fi-and-WLANSearch for:

What is difference WLAN and WIFI?

Is WIFI and WLAN the same thing?While wireless LANs refer to any local area network (LAN) that a mobile user can connect to through a wireless (radio) connection;

Wi-Fi

(short for "wireless fidelity") is a term for certain types of

WLANs

that use specifications in the 802.11 wireless protocol family.

Wireless vs. Wi-Fi: What is the difference between Wi-Fi and WLAN?

searchnetworking.techtarget.com/.../Wireless-vs-Wi-Fi-What-is-the-difference-between-...Search for:

Is WIFI and WLAN the same thing?

What are the advantages of using Vlans?

Advantages of VLANs

.

VLANs

provide a number of

advantages

, such as ease of administration, confinement of broadcast domains, reduced broadcast traffic, and enforcement of security policies.

VLANs

provide the following

advantages

:

VLANs

enable logical grouping of end-stations that are physically dispersed on a network.

Advantages of VLANs - NetApp

https://library.netapp.com/.../GUID-C9DA920B-F414-4017-8DD1-D77D7FD3CC8C.ht...Search for:

What are the advantages of using Vlans?

What is a broadcast domain?A

broadcast domain

is a logical division of a computer network, in which all nodes can reach each other by

broadcast

at the data link layer. A

broadcast domain

can be within the same LAN segment or it can be bridged to other LAN segments. ... Routers and other higher-layer devices form boundaries between

broadcast domains

.

Broadcast domain - Wikipedia

https://en.wikipedia.org/wiki/Broadcast_domainSearch for:

What is a broadcast domain?

What is the use of native VLAN?The

native VLAN

is the only

VLAN

which is not tagged in a trunk, in other words,

native VLAN

frames are transmitted unchanged. Per default the

native VLAN

is

VLAN

1 but you can change that: #show interface Fa0/8 trunk. ... Port Mode Encapsulation Status

Native vlan

. Fa0/8 on 802.1q other 2.Jan 6, 2013

What is difference between Default VLAN and Native VLAN? | Getting ...

https://supportforums.cisco.com/.../what-difference-between-default-vlan-and-native-vla...Search for:

What is the use of native VLAN?

What is the native VLAN Cisco?

Cisco

IOS and

Native VLANs

. An 802.1Q trunk port can carry tagged and untagged frames because Ethernet is assumed to be a shared medium and there may hosts on the medium that cannot handle untagged frames. Untagged frames must placed into a

VLAN

by the receiving switch, the

native VLAN

is the

VLAN

used.Jun 9, 2011

Basics: Cisco IOS Native VLANs - EtherealMind

etherealmind.com/basics-cisco-ios-native-vlans/Search for:

What is the native VLAN Cisco?

What is a VLAN how does it work and what is it used for?A

VLAN

is a set of end stations and the switch ports that connect them. You can have different reasons for the logical division, such as department or project membership. ... Each

VLAN

in a network has an associated

VLAN

ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a

VLAN

.

What is a virtual LAN (VLAN) and how does it work with my managed ...

https://kb.netgear.com/.../What-is-a-virtual-LAN-VLAN-and-how-does-it-work-with-my...Search for:

What is a VLAN how does it work and what is it used for?

What is a VLAN hopping attack?

VLAN hopping

is a computer security exploit, a method of attacking networked resources on a virtual LAN (

VLAN

). The basic concept behind all

VLAN hopping

attacks is for an attacking host on a

VLAN

to gain access to traffic on other

VLANs

that would normally not be accessible.

VLAN hopping - Wikipedia

https://en.wikipedia.org/wiki/VLAN_hoppingSearch for:

What is a VLAN hopping attack?

What is routed port on a switch?[Study CCNA or CCNP

SWITCH

with Cisco Press] A

routed port

on a

switch

can act like a

port

on a router.

Routed switch ports

aren't joined to any VLANs and they do not support VLAN subinterfaces. Because they are

routed ports

, you can configure a Layer 3 protocol.Dec 18, 2013

What Is A Cisco Routed Port - Packet6

https://www.packet6.com/what-is-a-cisco-routed-port/Search for:

What is routed port on a switch?

What is SVI in Cisco switch?A Switched Virtual Interface (

SVI

) is a virtual LAN (VLAN) of

switch

ports represented by one interface to a routing or bridging system. There is no physical interface for the VLAN and the

SVI

provides the Layer 3 processing for packets from all

switch

ports associated with the VLAN.

Switch virtual interface - Wikipedia

https://en.wikipedia.org/wiki/Switch_virtual_interfaceSearch for:

What is SVI in Cisco switch?

What does encapsulation dot1q do?IEEE 802.1Q

encapsulation

is configurable on Ethernet and EtherChannel interfaces. IEEE 802.1Q is a standard protocol for interconnecting multiple switches and routers and for defining VLAN topologies. Use the

encapsulation dot1q

command in subinterface range configuration mode to apply a VLAN ID to the subinterface.

encapsulation dot1Q - Cisco

www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/nxos/.../encapsulation-dot1q.htmlSearch for:

What does encapsulation dot1q do?

What is a router on a stick Cisco?

Router-on-a-stick

is a term frequently used to describe a setup up that consists of a

router

and switch connected using one Ethernet link configured as an 802.1q trunk link. In this setup, the switch is configured with multiple VLANs and the

router

performs all

routing

between the different networks/VLANs.

How To Configure Router On A Stick - 802.1q Trunk To Cisco Router

www.firewall.cx/cisco-technical...routers/336-cisco-router-8021q-router-stick.htmlSearch for:

What is a router on a stick Cisco?

What is VLAN IPTV?There are Internet Service Providers (ISP) that provide multiple services such as Internet,

IPTV

and phone service. They also require you to configure

VLAN

tagging for those services to work behind your device.

Enabling VLAN/IPTV Setup on D6220/D7800 | Answer | NETGEAR ...

https://kb.netgear.com/29808/Enabling-VLAN-IPTV-Setup-on-D6220-D7800Search for:

What is VLAN IPTV?

What is a Layer 2 network?

Layer 2

refers to the Data Link

layer

of the commonly-referenced multilayered communication model, Open Systems Interconnection (OSI). The Data Link

layer

is concerned with moving data across the physical links in the network.

What is layer 2? - Definition from WhatIs.com - SearchNetworking

searchnetworking.techtarget.com/definition/layer-2Search for:

What is a Layer 2 network?

What is difference WLAN and WIFI?Technically,

WLAN

means any

wireless local area network

no matter what technology is used and

Wi-Fi

is a type of

WLAN

that follows the IEEE 802.11 standards which most

WLANs

in use today do, that's why they are commonly used interchangeably.

Wi-Fi

as a name for the standard is a trademark of the

Wi-Fi

Alliance.

What is the difference between Wi-Fi and WLAN? - Quora

https://www.quora.com/What-is-the-difference-between-Wi-Fi-and-WLANSearch for:

What is difference WLAN and WIFI?

Is WIFI and WLAN the same thing?While wireless LANs refer to any local area network (LAN) that a mobile user can connect to through a wireless (radio) connection;

Wi-Fi

(short for "wireless fidelity") is a term for certain types of

WLANs

that use specifications in the 802.11 wireless protocol family.

Wireless vs. Wi-Fi: What is the difference between Wi-Fi and WLAN?

searchnetworking.techtarget.com/.../Wireless-vs-Wi-Fi-What-is-the-difference-between-...Search for:

Is WIFI and WLAN the same thing?

What are the advantages of using Vlans?

Advantages of VLANs

.

VLANs

provide a number of

advantages

, such as ease of administration, confinement of broadcast domains, reduced broadcast traffic, and enforcement of security policies.

VLANs

provide the following

advantages

:

VLANs

enable logical grouping of end-stations that are physically dispersed on a network.

Advantages of VLANs - NetApp

https://library.netapp.com/.../GUID-C9DA920B-F414-4017-8DD1-D77D7FD3CC8C.ht...Search for:

What are the advantages of using Vlans?

What is a broadcast domain?A

broadcast domain

is a logical division of a computer network, in which all nodes can reach each other by

broadcast

at the data link layer. A

broadcast domain

can be within the same LAN segment or it can be bridged to other LAN segments. ... Routers and other higher-layer devices form boundaries between

broadcast domains

.

Broadcast domain - Wikipedia

https://en.wikipedia.org/wiki/Broadcast_domainSearch for:

What is a broadcast domain?

What is the use of native VLAN?The

native VLAN

is the only

VLAN

which is not tagged in a trunk, in other words,

native VLAN

frames are transmitted unchanged. Per default the

native VLAN

is

VLAN

1 but you can change that: #show interface Fa0/8 trunk. ... Port Mode Encapsulation Status

Native vlan

. Fa0/8 on 802.1q other 2.Jan 6, 2013

What is difference between Default VLAN and Native VLAN? | Getting ...

https://supportforums.cisco.com/.../what-difference-between-default-vlan-and-native-vla...Search for:

What is the use of native VLAN?

What is the native VLAN Cisco?

Cisco

IOS and

Native VLANs

. An 802.1Q trunk port can carry tagged and untagged frames because Ethernet is assumed to be a shared medium and there may hosts on the medium that cannot handle untagged frames. Untagged frames must placed into a

VLAN

by the receiving switch, the

native VLAN

is the

VLAN

used.Jun 9, 2011

Basics: Cisco IOS Native VLANs - EtherealMind

etherealmind.com/basics-cisco-ios-native-vlans/Search for:

What is the native VLAN Cisco?

What is a VLAN how does it work and what is it used for?A

VLAN

is a set of end stations and the switch ports that connect them. You can have different reasons for the logical division, such as department or project membership. ... Each

VLAN

in a network has an associated

VLAN

ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a

VLAN

.

What is a virtual LAN (VLAN) and how does it work with my managed ...

https://kb.netgear.com/.../What-is-a-virtual-LAN-VLAN-and-how-does-it-work-with-my...Search for:

What is a VLAN how does it work and what is it used for?

What is a VLAN hopping attack?

VLAN hopping

is a computer security exploit, a method of attacking networked resources on a virtual LAN (

VLAN

). The basic concept behind all

VLAN hopping

attacks is for an attacking host on a

VLAN

to gain access to traffic on other

VLANs

that would normally not be accessible.

VLAN hopping - Wikipedia

https://en.wikipedia.org/wiki/VLAN_hoppingSearch for:

What is a VLAN hopping attack?

What is routed port on a switch?[Study CCNA or CCNP

SWITCH

with Cisco Press] A

routed port

on a

switch

can act like a

port

on a router.

Routed switch ports

aren't joined to any VLANs and they do not support VLAN subinterfaces. Because they are

routed ports

, you can configure a Layer 3 protocol.Dec 18, 2013

What Is A Cisco Routed Port - Packet6

https://www.packet6.com/what-is-a-cisco-routed-port/Search for:

What is routed port on a switch?

What is SVI in Cisco switch?A Switched Virtual Interface (

SVI

) is a virtual LAN (VLAN) of

switch

ports represented by one interface to a routing or bridging system. There is no physical interface for the VLAN and the

SVI

provides the Layer 3 processing for packets from all

switch

ports associated with the VLAN.

Switch virtual interface - Wikipedia

https://en.wikipedia.org/wiki/Switch_virtual_interfaceSearch for:

What is SVI in Cisco switch?

What does encapsulation dot1q do?IEEE 802.1Q

encapsulation

is configurable on Ethernet and EtherChannel interfaces. IEEE 802.1Q is a standard protocol for interconnecting multiple switches and routers and for defining VLAN topologies. Use the

encapsulation dot1q

command in subinterface range configuration mode to apply a VLAN ID to the subinterface.

encapsulation dot1Q - Cisco

www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/nxos/.../encapsulation-dot1q.htmlSearch for:

What does encapsulation dot1q do?

What is a router on a stick Cisco?

Router-on-a-stick

is a term frequently used to describe a setup up that consists of a

router

and switch connected using one Ethernet link configured as an 802.1q trunk link. In this setup, the switch is configured with multiple VLANs and the

router

performs all

routing

between the different networks/VLANs.

How To Configure Router On A Stick - 802.1q Trunk To Cisco Router

www.firewall.cx/cisco-technical...routers/336-cisco-router-8021q-router-stick.htmlSearch for:

What is a router on a stick Cisco?

What is VLAN IPTV?  What is VLAN bridge setup?In a LAN environment,

VLANs

divide broadcast domains. ... This type of routing is called inter-

VLAN

routing. On a smart switch, you can

set up

inter-

VLAN

routing by creating a Layer 3 interface, that is, a switch virtual interface (SVI). By default, a port is enabled for

bridging

rather than routing.

What is VLAN Routing? | Answer | NETGEAR Support

https://kb.netgear.com/24754/What-is-VLAN-RoutingSearch for:

What is VLAN bridge setup?

What is IRB routing?Integrated

Routing

and Bridging (

IRB

) is a technique that allows a protocol to be bridged as well as routed on the same interface on a

router

. When a

router

is configured for

IRB

, it maintains the existing VLAN header when forwarding the frame between the interfaces.May 31, 2008

How does VLAN routing and bridging work when using IRB? | Network ...

www.networkworld.com/.../how-does-vlan-routing-and-bridging-work-when-using-irb-...Search for:

What is IRB routing?

What is the BVI interface?

BVI

can replace Vlan

interfaces

. So instead of having a Vlan

interface

that routes packets (coming from acces port attached to that vlan number) that needs to be routed outside the vlan, the

BVI

does the same thing, routing packets outside de layer 2 domain from L2

interfaces

that are bridged to that

BVI

.Mar 31, 2011

What is a Cisco BVI interface? What is it used for? - Server Fault

https://serverfault.com/questions/254347/what-is-a-cisco-bvi-interface-what-is-it-used-forSearch for:

What is the BVI interface?

What is Cobb access port?The

Accessport

is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Subaru. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations.

COBB Tuning - Accessport

https://www.cobbtuning.com/products/accessportSearch for:

What is Cobb access port?

What is access and trunk port?A

trunk port

is a

port

that is assigned to carry traffic for all the VLANs that are accessible by a specific switch, a process known as trunking.

Trunk ports

mark frames with unique identifying tags – either 802.1Q tags or Inter-Switch Link (ISL) tags – as they move between switches.

What is a Trunk Port? - Definition from Techopedia

https://www.techopedia.com/definition/27008/trunk-portSearch for:

What is access and trunk port?

What is the use of VTP pruning?

VLAN

Trunking Protocol (

VTP

) is used to communicate

VLAN

information between switches in the same

VTP

domain.

VLAN

Trunking Protocol (

VTP

)

pruning

is a feature in Cisco switches, which stops

VLAN

update information traffic from being sent down trunk links if the updates are not needed.

What is VLAN Trunking Protocol (VTP) Pruning - omnisecu.com

www.omnisecu.com/cisco...ccna/what-is-vlan-trunking-protocol-vtp-pruning.phpSearch for:

What is the use of VTP pruning?

What is Dynamic Trunking Protocol?The

Dynamic Trunking Protocol

(DTP) is a proprietary networking

protocol

developed by Cisco Systems for the purpose of negotiating

trunking

on a link between two VLAN-aware switches, and for negotiating the type of

trunking

encapsulation to be used.

Dynamic Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/Dynamic_Trunking_ProtocolSearch for:

What is Dynamic Trunking Protocol?

What is the difference between a hub and a switch and a router?In a word, intelligence. Hubs, switches, and routers are all devices that let you connect one or more computers to other computers, networked devices, or even other networks. Each has two or more connectors called ports into which you

plug

in the cables to make the connection.Feb 23, 2013

What's the difference between a hub, a switch, and a router? - Ask Leo!

https://askleo.com/whats_the_difference_between_a_hub_a_switch_and_a_router/Search for:

What is the difference between a hub and a switch and a router?

What is the difference between a router and a gateway?

Gateways

regulate traffic

between

two dissimilar networks, while

routers

regulate traffic

between

similar networks. The easiest way to illustrate this point is through an example. ... Because TCP/IP is also the primary protocol of the Internet, you could use a

router

to connect your network to the Internet.Jul 19, 2000

Understanding the differences between gateways and routers ...

www.techrepublic.com/.../understanding-the-differences-between-gateways-and-routers/Search for:

What is the difference between a router and a gateway?

What is a spanning tree loop?The

Spanning Tree

Protocol (STP) is a network protocol that builds a logical

loop

-free topology for Ethernet networks. The basic function of STP is to prevent bridge

loops

and the broadcast radiation that results from them.

Spanning Tree Protocol - Wikipedia

https://en.wikipedia.org/wiki/Spanning_Tree_ProtocolSearch for:

What is a spanning tree loop?

What is a designated port in spanning tree protocol?A bridge device has two (or more)

ports

. The one that is connected on the side where the

STP

root resides is called 'root

port

'. A

port

not facing the root but forwarding traffic (while lowest cost) from another segment is called '

designated port

'.Dec 7, 2010

STP: Root port vs. designated port | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/11061531/stp-root-port-vs-designated-portSearch for:

What is a designated port in spanning tree protocol?

What is the VLAN?A virtual LAN (

VLAN

) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). ...

VLANs

allow network administrators to group hosts together even if the hosts are not on the same network switch.

VLANs - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is the VLAN?

Is Mpls a VPN?

MPLS VPN

is a family of methods for using multiprotocol label switching (

MPLS

) to create

virtual private networks

(

VPNs

).

MPLS VPN

is a flexible method to transport and route several types of network traffic using an

MPLS

backbone.

MPLS VPN - Wikipedia

https://en.wikipedia.org/wiki/MPLS_VPNSearch for:

Is Mpls a VPN?

How do you find your subnet mask?

Find Subnet Mask

on Windows Computer. To

find

the

subnet mask

of your Windows computer, go to the Run box (Windows Key + R) and cmd to open the Command Prompt. Here you can type the command “ipconfig /all” and hit the Enter key.Feb 21, 2014

How to Find the Subnet Mask on Windows or Mac - Labnol

https://www.labnol.org/internet/find-subnet-mask/25410/Search for:

How do you find your subnet mask?

What is a 24 network?Subnet and host countsPrefix sizeSubnet maskAvailable subnets

/24255.255.255.01

/25255.255.255.1282

/26255.255.255.1924

/27255.255.255.2248

4 more rows

Subnetwork - Wikipedia

https://en.wikipedia.org/wiki/SubnetworkSearch for:

What is a 24 network?

How do I find out what my VLAN is?To

find

your

VLAN

(on a

Windows

XP machine), go to "Start Menu",then click the return (enter) key on your keyboard. This runs a command prompt. Type in "ipconfig" and hit return again. You will

see

your IP Address, your Subnet Mask and your Default Gateway.

DHCP - OpenAccess.org

www.openaccess.org/index.php?section=47Search for:

How do I find out what my VLAN is?

How can we create a VLAN on a switch?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How can we create a VLAN on a switch?

What is a quality of service policy?

Quality of service

(

QoS

) is a feature that lets you give priority to critical traffic, prevent bandwidth hogging, and manage network bottlenecks to prevent packet drops. This chapter describes how to apply

QoS policies

and includes the following sections: • Information About

QoS

.Oct 31, 2013

Applying QoS Policies - Cisco

www.cisco.com/c/en/us/td/docs/security/asa/asa72/configuration/guide/.../qos.htmlSearch for:

What is a quality of service policy?

What is quality of service in computer networks?

Quality of Service

(

QoS

) refers to the capability of a

network

to provide better service to selected

network

traffic over various technologies, including Frame Relay, Asynchronous Transfer Mode (ATM), Ethernet and 802.1

networks

, SONET, and IP-routed

networks

that may use any or all of these underlying technologies.Oct 16, 2012

Quality of Service Networking - DocWiki

docwiki.cisco.com/wiki/Quality_of_Service_NetworkingSearch for:

What is quality of service in computer networks?

How do you route between VLANs?

Step-by-Step Instructions

Enable routing on the switch with the ip routing command. ...

Make note of the VLANs that you want to route between. ...

Use the show vlan command in order to verify that the VLANs exist in the VLAN database. ...

Determine the IP addresses you want to assign to the VLAN interface on the switch.

More items...

Configure InterVLAN Routing on Layer 3 Switches - Cisco

www.cisco.com/c/en/us/support/...switching/.../41860-howto-L3-intervlanrouting.htmlSearch for:

How do you route between VLANs?

How do I configure a switch?To

configure

the default gateway for the

switch

, use the ip default-gateway command. Enter the IP address of the default gateway. The default gateway is the IP address of the router interface to which the

switch

connects. Use the following command to backup the

configuration

: copy running-

config

startup-

config

.Mar 31, 2014

Basic Switch Configuration (2.1) > Cisco Networking Academy's ...

www.ciscopress.com/articles/article.asp?p=2181836&seqNum=4Search for:

How do I configure a switch?

What is the use of multiple SSID?The Service Set Identifier (

SSID

) defines what is thought of as the wireless network. ... In addition to

multiple

access points broadcasting or using the same

SSID

, a single access point can also use

multiple SSIDs

.

Multiple SSIDs with a Single Access Point (AP) - dummies

www.dummies.com/programming/.../cisco/multiple-ssids-with-a-single-access-point-ap/Search for:

What is the use of multiple SSID?

What is the use of VLAN tagging?

VLAN Tagging

is the practice of inserting a

VLAN

ID into a packet header in order to identify which

VLAN

(Virtual Local Area Network) the packet belongs to. More specifically, switches use the

VLAN

ID to determine which port(s), or interface(s), to send a broadcast packet to.

What is VLAN Tagging? Why should I enable VLAN Tagging support ...

https://www.bluecoat.com/sites/default/files/documents/files/VLAN_Tagging.1.pdfSearch for:

What is the use of VLAN tagging?

What is the use of inter VLAN routing?Virtual LANs (

VLANs

) divide one physical network into multiple broadcast domains. But,

VLAN

-enabled switches cannot, by themselves, forward traffic across

VLAN

boundaries. So you need to have

routing

between these

VLANs

which is called

interVLAN routing

.

What is interVLAN routing?

searchnetworking.techtarget.com/answer/What-is-interVLAN-routingSearch for:

What is the use of inter VLAN routing?

What is VTP in networking?

VLAN Trunking Protocol

(

VTP

) is a

Cisco

proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) on the whole local area network. To do this,

VTP

carries VLAN information to all the switches in a

VTP

domain. ... Known VLANs and their specific parameters.

VLAN Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/VLAN_Trunking_ProtocolSearch for:

What is VTP in networking?

What is VLAN stand for?Virtual Local Area Network

VLAN stands for

Virtual Local Area Network. A

VLAN

is a network that collects a set of network ports on a switching device into a single broadcast domain.

VLANs

are most often used over Ethernet networks.Dec 1, 2012

VLANS - Virtual Local Area Networks (IEEE 802.1Q) - InetDaemon.Com

www.inetdaemon.com/tutorials/networking/lan/vlan/Search for:

What is VLAN stand for?

What is the full form of VLAN?

VLANs

are configured through software rather than hardware, which makes them extremely flexible. One of the biggest advantages of

VLANs

is that when a computer is physically moved to another location, it can stay on the same

VLAN

without any hardware reconfiguration.

What is VLAN? Webopedia Definition

www.webopedia.com/TERM/V/VLAN.htmlSearch for:

What is the full form of VLAN?

What are the main differences between a LAN and a VLAN?The purpose of a

VLAN

is simple: It removes the limitation of physically switched

LANs

with all devices automatically connected to each other. With a

VLAN

, it is possible to have hosts that are connected together on the same physical

LAN

but not allowed to communicate directly.May 29, 2015

Differences Between Physical and Virtual LANs | Virtual vs. Physical ...

www.pearsonitcertification.com/articles/article.aspx?p=2343470&seqNum=2Search for:

What are the main differences between a LAN and a VLAN?

Why would you use a VLAN?

VLAN's

can be used to create broadcast domains which eliminate the need for expensive routers. Periodically, sensitive data may be broadcast on a network. In such cases, placing only those users who can have access to that data on a

VLAN

can reduce the chances of an outsider gaining access to the data.

Virtual Local Area Networks - Computer Science & Engineering

www.cse.wustl.edu/~jain/cis788-97/ftp/virtual_lans/Search for:

Why would you use a VLAN?

What is the difference between tagged and untagged VLAN?So a "

tagged

" packet contains the

VLAN

information in the Ethernet frame while an "

untagged

" packet doesn't. ... The port between router and switch is configured as a trunk port so that both router and switch know which packet belongs to which customer

VLAN

.Feb 25, 2014

Why and how are Ethernet Vlans tagged? - Network Engineering ...

https://networkengineering.stackexchange.com/.../why-and-how-are-ethernet-vlans-tagg...Search for:

What is the difference between tagged and untagged VLAN?

What is the use of native VLAN?A

Native VLAN

is nothing else than a default

VLAN

given that any port in a (CISCO)switch has to assigned to one

VLAN

. By default all ports (access links) belong to

VLAN

1 or

native VLAN

. Hello Sandy,

native vlan

is an 802.1Q concept: frames belonging to

native vlan

are sent untagged.Jan 13, 2010

Why Native VLAN exists on a Trunk? | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/10811246/why-native-vlan-exists-trunkSearch for:

What is the use of native VLAN?

What are the advantages of using Vlans?

Advantages of VLANs

.

VLANs

provide a number of

advantages

, such as ease of administration, confinement of broadcast domains, reduced broadcast traffic, and enforcement of security policies.

VLANs

provide the following

advantages

:

VLANs

enable logical grouping of end-stations that are physically dispersed on a network.

Advantages of VLANs - NetApp

https://library.netapp.com/.../GUID-C9DA920B-F414-4017-8DD1-D77D7FD3CC8C.ht...Search for:

What are the advantages of using Vlans?

What is VLAN and why it is used?A

VLAN

is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because

VLANs

are based on logical instead of physical connections, they are extremely flexible.

Understanding and Configuring VLANs - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/.../vlans.htmlSearch for:

What is VLAN and why it is used?

What do you mean by trunkline?

Definition

of

trunk line

. 1 : a transportation system (such as an airline, railroad, or highway) handling long-distance through traffic. 2a : a main supply channel (as for gas or oil)b : trunk 5b.

Trunk Line | Definition of Trunk Line by Merriam-Webster

https://www.merriam-webster.com/dictionary/trunk%20lineSearch for:

What do you mean by trunkline?

What is an analog trunk line?The Trunking Concept. Sometimes people incorrectly refer to a single

analog

telephone

line

as an

analog trunk

. Trunking refers to the concept that many users can access the telephone network through sharing a set of

lines

instead of each receiving one individually.

What is an analog telephone line? - MetrolineDirect

www.metrolinedirect.com/what-is-an-analog-telephone-line.htmlSearch for:

What is an analog trunk line?

What is a Pvid?A Port VLAN ID (

pvid

) is a default VLAN ID that is assigned to an access port to designate the virtual LAN segment to which this port is connected. The

pvid

places the port into the set of ports that are connected under the designated VLAN ID.

What Is a Port VLAN ID (pvid)? - IBM

https://www.ibm.com/support/knowledgecenter/en/SSB27U_6.4.0/.../hcpa646.htmSearch for:

What is a Pvid?

What is 802.1 Q?IEEE

802.1Q

is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.

IEEE 802.1Q - Wikipedia

https://en.wikipedia.org/wiki/IEEE_802.1QSearch for:

What is 802.1 Q?

What is tagged frames?VLAN

Tagging

, also known as

Frame Tagging

, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet

frame

traverses a trunk link, a special VLAN tag is added to the

frame

and sent across the trunk link.

VLAN Tagging - Understanding VLANs Ethernet Frames - Firewall.cx

www.firewall.cx/networking-topics/vlan-networks/219-vlan-tagging.htmlSearch for:

What is tagged frames?

What is tagged and untagged traffic?When a port is set to access it means that the port is part of the VLAN forwarding wise (MAC table) but all frames are sent

untagged

. When frames from that VLAN are sent over a trunk they get a tag added so the receiving switch knows to which VLAN the

traffic

belongs.Apr 11, 2013

Tagged vs Untagged Traffic - 54957 - The Cisco Learning Network

https://learningnetwork.cisco.com/thread/54957Search for:

What is tagged and untagged traffic?

What is a broadcast domain and a collision domain?A

broadcast domain

is a logical division of a

computer network

, in which all nodes can reach each other by

broadcast

at the data link layer. ... While some layer two

network

devices are able to divide the

collision domains

,

broadcast domains

are only divided by layer 3

network

devices such as routers or layer 3 switches.

Broadcast domain - Wikipedia

https://en.wikipedia.org/wiki/Broadcast_domainSearch for:

What is a broadcast domain and a collision domain?

How many collision domains and broadcast domain that a switch has?Each connection from a single PC to a Layer 2 switch is

ONE Collision

domain. For example, if 2 PCs are connected with separate cables to a switch, so we have 2 Collision domains. If this switch is connected to another switch or a router, we have

one collision

domain more (3 collision domain in total).Aug 8, 2010

1.1 What is Collision Domain, Broadcast Domain, and How to Count ...

ccna-guidance.blogspot.com/2010/08/11-what-is-collision-domain-broadcast.htmlSearch for:

How many collision domains and broadcast domain that a switch has?

How many broadcast and collision domains are on a hub?With all this information, you can say that on your diagram, there are

2 broadcast domains

(1 router that separates 2 LAN segments composed by one or many switches, with only 1 VLAN per segment).Jul 15, 2008

Broadcast Domains and Collision Domains - 1734 - The Cisco ...

https://learningnetwork.cisco.com/thread/1734Search for:

How many broadcast and collision domains are on a hub?

What is a collision domain?A

collision domain

is a section of a network connected by a shared medium or through repeaters where data packets can collide with one another when being sent. ... A network

collision

occurs when more than one device attempts to send a packet on a network segment at the same time.

Collision domain - Wikipedia

https://en.wikipedia.org/wiki/Collision_domainSearch for:

What is a collision domain?

What is Vxlan Cisco?VLANs provide logical segmentation of Layer 2 boundaries or broadcast domains. ...

Cisco

, in partnership with other leading vendors, proposed the Virtual Extensible LAN (

VXLAN

) standard to the IETF as a solution to the data center network challenges posed by traditional VLAN technology.Nov 6, 2013

VXLAN Overview: Cisco Nexus 9000 Series Switches - Cisco

www.cisco.com/c/en/us/products/collateral/switches/.../white-paper-c11-729383.htmlSearch for:

What is Vxlan Cisco?

What is a Vtep?Frame encapsulation is done by an entity known as a VXLAN Tunnel Endpoint (

VTEP

.) A

VTEP

has two logical interfaces: an uplink and a downlink. The uplink is responsible for receiving VXLAN frames and acts as a tunnel endpoint with an IP address used for routing VXLAN encapsulated frames.Nov 6, 2012

VXLAN Deep Dive — Define The Cloud

www.definethecloud.net/vxlan-deep-dive/Search for:

What is a Vtep?

What is the use of Vxlan?Virtual Extensible LAN (

VXLAN

) is a proposed encapsulation protocol for running an overlay network on existing Layer 3 infrastructure. An overlay network is a virtual network that is built on top of existing network Layer 2 and Layer 3 technologies to support elastic compute architectures.

What is VXLAN (Virtual Extensible LAN)? - Definition from WhatIs.com

whatis.techtarget.com/definition/VXLANSearch for:

What is the use of Vxlan?

What is Nvgre?Network Virtualization using Generic Routing Encapsulation (

NVGRE

) is a network virtualization technology that attempts to alleviate the scalability problems associated with large cloud computing deployments. It uses Generic Routing Encapsulation (GRE) to tunnel layer 2 packets over layer 3 networks.

nvgre - Wikipedia

https://en.wikipedia.org/.../Network_Virtualization_using_Generic_Routing_Encapsulati...Search for:

What is Nvgre?

What is VTP CCNA?

VTP

is a protocol used to distribute and synchronize identifying information about VLANs configured throughout a switched network. Configurations made to a single

VTP

server are propagated across trunk links to all connected switches in the network.Dec 5, 2003

VLAN Trunking Protocol > CCNA Self-Study (ICND Exam): Extending ...

www.ciscopress.com/articles/article.asp?p=102157&seqNum=3Search for:

What is VTP CCNA?

What is tree pruning in data mining?Pruning is a technique in machine learning that reduces the size of

decision trees

by removing sections of the tree that provide

little

power to classify instances.

Pruning (decision trees) - Wikipedia

https://en.wikipedia.org/wiki/Pruning_(decision_trees)Search for:

What is tree pruning in data mining?

What is a trunk port on a Cisco switch?Enabling

Trunking

.

Trunk

links are required to pass VLAN information between

switches

. A

port

on a

Cisco switch

is either an access

port

or a

trunk port

. Access

ports

belong to a single VLAN and do not provide any identifying marks on the frames that are passed between

switches

.Oct 25, 2002

Trunking > VLANs and Trunking - Cisco Press

www.ciscopress.com/articles/article.asp?p=29803&seqNum=3Search for:

What is a trunk port on a Cisco switch?

What is a VLAN pruning?

VLAN

Trunking Protocol (

VTP

) is used to communicate

VLAN

information between switches in the same

VTP

domain.

VLAN

Trunking Protocol (

VTP

)

pruning

is a feature in Cisco switches, which stops

VLAN

update information traffic from being sent down trunk links if the updates are not needed.

What is VLAN Trunking Protocol (VTP) Pruning - omnisecu.com

www.omnisecu.com/cisco-certified.../what-is-vlan-trunking-protocol-vtp-pruning.phpSearch for:

What is a VLAN pruning?

How does a local area network work?

Local Area Network

(

LAN

) - A

LAN

is a network of computers that are in the same general physical location, usually within a building or a campus. If the computers are far apart (such as across town or in different cities), then a Wide Area Network (WAN) is typically used.

Networking Basics - How LAN Switches Work | HowStuffWorks

computer.howstuffworks.com/lan-switch1.htmSearch for:

How does a local area network work?

What is meant by LAN?A

local area network

(

LAN

) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a

LAN

encompasses computers and peripherals connected to a server within a distinct geographic area such as an office or a commercial establishment.

What is local area network (LAN)? - Definition from WhatIs.com

searchnetworking.techtarget.com/definition/local-area-network-LANSearch for:

What is meant by LAN?

What is an example of local area network?

Local area network (LAN

). Computer and Network Examples. A

local area network (LAN

) is a devices network that connect with each other in the scope of a home, school, laboratory, or office. Usually, a LAN comprise computers and peripheral devices linked to a local domain server.

Local area network (LAN). Computer and Network Examples

www.conceptdraw.com/How-To-Guide/Local-Area-NetworkSearch for:

What is an example of local area network?

What are the uses of LAN and WAN?A

WAN

covers a large geographical area. Most

WANs

are made from several

LANs

connected together.

WAN

- Wide Area Network. ... A school network is usually a

LAN

.

LANs

are often connected to

WANs

, for example a school network could be connected to the Internet.

BBC - GCSE Bitesize: LANs and WANs

www.bbc.co.uk/schools/gcsebitesize/ict/datacomm/2networksrev1.shtmlSearch for:

What are the uses of LAN and WAN?

What is the highest VLAN number?Under IEEE 802.1Q, the

maximum number

of

VLANs

on a given Ethernet network is 4,094 (the 4,096 provided for by the 12-bit VID field minus reserved values 0x000 and 0xFFF). This does not impose the same limit on the

number

of IP subnets in such a network, since a single

VLAN

can contain multiple IP subnets.

VLANs - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is the highest VLAN number?

What is a VLAN how does it work and what is it used for?A

VLAN

is a set of end stations and the switch ports that connect them. You can have different reasons for the logical division, such as department or project membership. ... Each

VLAN

in a network has an associated

VLAN

ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a

VLAN

.

What is a virtual LAN (VLAN) and how does it work with my managed ...

https://kb.netgear.com/.../What-is-a-virtual-LAN-VLAN-and-how-does-it-work-with-my...Search for:

What is a VLAN how does it work and what is it used for?

Is Mpls a VPN?

MPLS VPN

is a family of methods for using multiprotocol label switching (

MPLS

) to create

virtual private networks

(

VPNs

).

MPLS VPN

is a flexible method to transport and route several types of network traffic using an

MPLS

backbone.

MPLS VPN - Wikipedia

https://en.wikipedia.org/wiki/MPLS_VPNSearch for:

Is Mpls a VPN?

What is the protocol used by MPLS?A label-switched path (LSP) is a path through an

MPLS

network, set up by a signaling

protocol

such as LDP, RSVP-TE, BGP or CR-LDP. The path is set up based on criteria in the FEC. The path begins at a label edge router (LER), which makes a decision on which label to prefix to a packet, based on the appropriate FEC.

Multiprotocol Label Switching - Wikipedia

https://en.wikipedia.org/wiki/Multiprotocol_Label_SwitchingSearch for:

What is the protocol used by MPLS?

What is VTP CCNA?

VTP

is a protocol used to distribute and synchronize identifying information about VLANs configured throughout a switched network. Configurations made to a single

VTP

server are propagated across trunk links to all connected switches in the network.Dec 5, 2003

VLAN Trunking Protocol > CCNA Self-Study (ICND Exam): Extending ...

www.ciscopress.com/articles/article.asp?p=102157&seqNum=3Search for:

What is VTP CCNA?

What is tree pruning in data mining?Pruning is a technique in machine learning that reduces the size of

decision trees

by removing sections of the tree that provide

little

power to classify instances.

Pruning (decision trees) - Wikipedia

https://en.wikipedia.org/wiki/Pruning_(decision_trees)Search for:

What is tree pruning in data mining?

What is a trunk port on a Cisco switch?Enabling

Trunking

.

Trunk

links are required to pass VLAN information between

switches

. A

port

on a

Cisco switch

is either an access

port

or a

trunk port

. Access

ports

belong to a single VLAN and do not provide any identifying marks on the frames that are passed between

switches

.Oct 25, 2002

Trunking > VLANs and Trunking - Cisco Press

www.ciscopress.com/articles/article.asp?p=29803&seqNum=3Search for:

What is a trunk port on a Cisco switch?

What is a VLAN pruning?

VLAN

Trunking Protocol (

VTP

) is used to communicate

VLAN

information between switches in the same

VTP

domain.

VLAN

Trunking Protocol (

VTP

)

pruning

is a feature in Cisco switches, which stops

VLAN

update information traffic from being sent down trunk links if the updates are not needed.

What is VLAN Trunking Protocol (VTP) Pruning - omnisecu.com

www.omnisecu.com/cisco-certified.../what-is-vlan-trunking-protocol-vtp-pruning.phpSearch for:

What is a VLAN pruning?

How does a local area network work?

Local Area Network

(

LAN

) - A

LAN

is a network of computers that are in the same general physical location, usually within a building or a campus. If the computers are far apart (such as across town or in different cities), then a Wide Area Network (WAN) is typically used.

Networking Basics - How LAN Switches Work | HowStuffWorks

computer.howstuffworks.com/lan-switch1.htmSearch for:

How does a local area network work?

What is meant by LAN?A

local area network

(

LAN

) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a

LAN

encompasses computers and peripherals connected to a server within a distinct geographic area such as an office or a commercial establishment.

What is local area network (LAN)? - Definition from WhatIs.com

searchnetworking.techtarget.com/definition/local-area-network-LANSearch for:

What is meant by LAN?

What is an example of local area network?

Local area network (LAN

). Computer and Network Examples. A

local area network (LAN

) is a devices network that connect with each other in the scope of a home, school, laboratory, or office. Usually, a LAN comprise computers and peripheral devices linked to a local domain server.

Local area network (LAN). Computer and Network Examples

www.conceptdraw.com/How-To-Guide/Local-Area-NetworkSearch for:

What is an example of local area network?

What are the uses of LAN and WAN?A

WAN

covers a large geographical area. Most

WANs

are made from several

LANs

connected together.

WAN

- Wide Area Network. ... A school network is usually a

LAN

.

LANs

are often connected to

WANs

, for example a school network could be connected to the Internet.

BBC - GCSE Bitesize: LANs and WANs

www.bbc.co.uk/schools/gcsebitesize/ict/datacomm/2networksrev1.shtmlSearch for:

What are the uses of LAN and WAN?

What is the highest VLAN number?Under IEEE 802.1Q, the

maximum number

of

VLANs

on a given Ethernet network is 4,094 (the 4,096 provided for by the 12-bit VID field minus reserved values 0x000 and 0xFFF). This does not impose the same limit on the

number

of IP subnets in such a network, since a single

VLAN

can contain multiple IP subnets.

VLANs - Wikipedia

https://en.wikipedia.org/wiki/Virtual_LANSearch for:

What is the highest VLAN number?

What is a VLAN how does it work and what is it used for?A

VLAN

is a set of end stations and the switch ports that connect them. You can have different reasons for the logical division, such as department or project membership. ... Each

VLAN

in a network has an associated

VLAN

ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a

VLAN

.

What is a virtual LAN (VLAN) and how does it work with my managed ...

https://kb.netgear.com/.../What-is-a-virtual-LAN-VLAN-and-how-does-it-work-with-my...Search for:

What is a VLAN how does it work and what is it used for?

Is Mpls a VPN?

MPLS VPN

is a family of methods for using multiprotocol label switching (

MPLS

) to create

virtual private networks

(

VPNs

).

MPLS VPN

is a flexible method to transport and route several types of network traffic using an

MPLS

backbone.

MPLS VPN - Wikipedia

https://en.wikipedia.org/wiki/MPLS_VPNSearch for:

Is Mpls a VPN?

What is the protocol used by MPLS?  How do I set up a VLAN?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How do I set up a VLAN?

What is a trunk port?A

trunk port

is a

port

that is assigned to carry traffic for all the VLANs that are accessible by a specific switch, a process known as trunking.

Trunk ports

mark frames with unique identifying tags – either 802.1Q tags or Inter-Switch Link (ISL) tags – as they move between switches.

What is a Trunk Port? - Definition from Techopedia

https://www.techopedia.com/definition/27008/trunk-portSearch for:

What is a trunk port?

What is a WLAN router?A typical

WLAN router

includes four Ethernet ports, an 802.11 access point, and sometimes a parallel port so it can be a print server. This gives wireless users the same ability as wired users to send and receive packets over multiple networks.Feb 18, 2003

Understanding Wireless LAN Routers - Wi-Fi Planet

www.wi-fiplanet.com/tutorials/article.php/.../Understanding-Wireless-LAN-Routers.htmSearch for:

What is a WLAN router?

Is WIFI and wireless LAN the same thing?While

wireless LANs

refer to any local area network (

LAN

) that a mobile user can connect to through a

wireless

(radio) connection;

Wi-Fi

(short for "

wireless

fidelity") is a term for certain types of WLANs that use specifications in the 802.11

wireless

protocol family.

Wireless vs. Wi-Fi: What is the difference between Wi-Fi and WLAN?

searchnetworking.techtarget.com/.../Wireless-vs-Wi-Fi-What-is-the-difference-between-...Search for:

Is WIFI and wireless LAN the same thing?

What is the difference between WLAN and WIFI?Technically,

WLAN

means any

wireless local area network

no matter what technology is used and

Wi-Fi

is a type of

WLAN

that follows the IEEE 802.11 standards which most

WLANs

in use today do, that's why they are commonly used interchangeably.

Wi-Fi

as a name for the standard is a trademark of the

Wi-Fi

Alliance.

What is the difference between Wi-Fi and WLAN? - Quora

https://www.quora.com/What-is-the-difference-between-Wi-Fi-and-WLANSearch for:

What is the difference between WLAN and WIFI?

Can I connect to WIFI with WLAN?To

connect

your computer to the internet on a

WLAN

, click on the

WLAN

icon at the top right of your Mac Computer screen. All the wireless networks in your area will now be shown. Select your own

WLAN

and enter your

WLAN

password.

Making a WLAN connection | Swisscom

https://www.swisscom.ch/en/residential/help/internet/wlan-verbindung-herstellen.htmlSearch for:

Can I connect to WIFI with WLAN?

What is a data VLAN?A

data VLAN

is a

VLAN

that is configured to carry user-generated traffic. A

VLAN

carrying voice or management traffic would not be part of a

data VLAN

. It is common practice to separate voice and management traffic from

data

traffic.Apr 7, 2014

VLAN Segmentation (3.1) > Cisco Networking Academy's Introduction ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=4Search for:

What is a data VLAN?

What is a VLAN trunk?

VLAN Trunking

Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of

Virtual Local Area Networks

(

VLAN

) on the whole local area network. To do this, VTP carries

VLAN

information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.

VLAN Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/VLAN_Trunking_ProtocolSearch for:

What is a VLAN trunk?

What is broadcast domain in VLAN?A

VLAN

is a group of switch ports, within a single or multiple switches, that is defined by the switch hardware and/or software as a single

broadcast domain

. A

VLAN's

goal is to group devices connected to a switch into logical

broadcast domains

to control the effect that

broadcasts

have on other connected devices.Dec 5, 2003

CCNA Self-Study (ICND Exam): Extending Switched Networks with ...

www.ciscopress.com/articles/article.asp?p=102157Search for:

What is broadcast domain in VLAN?

What separates broadcast domains?Multi-network segments require a bridge, such as the networking device. A

broadcast domain

member can also be any device or computer that is directly connected to the same switch or repeater. Networking devices, such as routers, are used to

separate

the boundaries of

broadcast domains

.

What is Broadcast Domain? - Definition from Techopedia

https://www.techopedia.com/definition/24788/broadcast-domainSearch for:

What separates broadcast domains?

What is the VLAN 1?

VLAN

Design Guidelines (3.3.2.1) Cisco switches have a factory configuration in which default

VLANs

are preconfigured to support various media and protocol types. The default Ethernet

VLAN

is

VLAN 1

. It is a security best practice to configure all the ports on all switches to be associated with

VLANs

other than

VLAN 1

.Apr 7, 2014

Design Best Practices for VLANs (3.3.2) > Cisco Networking ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=11Search for:

What is the VLAN 1?

What is the difference between tagged and untagged VLAN?The ports between switch and customers are "

untagged

" meaning for the customer the arriving packet is just a normal Ethernet packet. The port between router and switch is configured as a trunk port so that both router and switch know which packet belongs to which customer

VLAN

.Feb 25, 2014

Why and how are Ethernet Vlans tagged? - Network Engineering ...

https://networkengineering.stackexchange.com/.../why-and-how-are-ethernet-vlans-tagg...Search for:

What is the difference between tagged and untagged VLAN?

What is the default VLAN number?The

native VLAN

is the only

VLAN

which is not tagged in a trunk, in other words,

native VLAN

frames are transmitted unchanged. Per

default

the

native VLAN

is

VLAN

1 but you can change that: #show interface Fa0/8 trunk. ... Port Mode Encapsulation Status

Native vlan

. Fa0/8 on 802.1q other 2.Jan 6, 2013

What is difference between Default VLAN and Native VLAN? | Getting ...

https://supportforums.cisco.com/.../what-difference-between-default-vlan-and-native-vla...Search for:

What is the default VLAN number?

What is the use of native VLAN?A

Native VLAN

is nothing else than a default

VLAN

given that any port in a (CISCO)switch has to assigned to one

VLAN

. By default all ports (access links) belong to

VLAN

1 or

native VLAN

. Hello Sandy,

native vlan

is an 802.1Q concept: frames belonging to

native vlan

are sent untagged.Jan 13, 2010

Why Native VLAN exists on a Trunk? | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/10811246/why-native-vlan-exists-trunkSearch for:

What is the use of native VLAN?

What is meant by VLAN?A

VLAN

is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because

VLANs

are based on logical instead of physical connections, they are extremely flexible.

Understanding and Configuring VLANs - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/.../vlans.htmlSearch for:

What is meant by VLAN?

What is the full form of VLAN?

VLANs

are configured through software rather than hardware, which makes them extremely flexible. One of the biggest advantages of

VLANs

is that when a computer is physically moved to another location, it can stay on the same

VLAN

without any hardware reconfiguration.

What is VLAN? Webopedia Definition

www.webopedia.com/TERM/V/VLAN.htmlSearch for:

What is the full form of VLAN?

How do I set up a VLAN?

To create VLAN interfaces:

Determine the IP addresses that you want to assign to the VLAN interfaces on the switch. ...

Open a web browser.

In the browser address field, type the IP address of the smart switch. ...

Type the password in the Password field. ...

Click the Login button. ...

Select Routing>IP>IP Configuration.

More items...

How do I configure VLAN Routing on a smart switch? | Answer ...

https://kb.netgear.com/24755/How-do-I-configure-VLAN-Routing-on-a-smart-switchSearch for:

How do I set up a VLAN?

What is a trunk port?A

trunk port

is a

port

that is assigned to carry traffic for all the VLANs that are accessible by a specific switch, a process known as trunking.

Trunk ports

mark frames with unique identifying tags – either 802.1Q tags or Inter-Switch Link (ISL) tags – as they move between switches.

What is a Trunk Port? - Definition from Techopedia

https://www.techopedia.com/definition/27008/trunk-portSearch for:

What is a trunk port?

What is a WLAN router?A typical

WLAN router

includes four Ethernet ports, an 802.11 access point, and sometimes a parallel port so it can be a print server. This gives wireless users the same ability as wired users to send and receive packets over multiple networks.Feb 18, 2003

Understanding Wireless LAN Routers - Wi-Fi Planet

www.wi-fiplanet.com/tutorials/article.php/.../Understanding-Wireless-LAN-Routers.htmSearch for:

What is a WLAN router?

Is WIFI and wireless LAN the same thing?While

wireless LANs

refer to any local area network (

LAN

) that a mobile user can connect to through a

wireless

(radio) connection;

Wi-Fi

(short for "

wireless

fidelity") is a term for certain types of WLANs that use specifications in the 802.11

wireless

protocol family.

Wireless vs. Wi-Fi: What is the difference between Wi-Fi and WLAN?

searchnetworking.techtarget.com/.../Wireless-vs-Wi-Fi-What-is-the-difference-between-...Search for:

Is WIFI and wireless LAN the same thing?

What is the difference between WLAN and WIFI?Technically,

WLAN

means any

wireless local area network

no matter what technology is used and

Wi-Fi

is a type of

WLAN

that follows the IEEE 802.11 standards which most

WLANs

in use today do, that's why they are commonly used interchangeably.

Wi-Fi

as a name for the standard is a trademark of the

Wi-Fi

Alliance.

What is the difference between Wi-Fi and WLAN? - Quora

https://www.quora.com/What-is-the-difference-between-Wi-Fi-and-WLANSearch for:

What is the difference between WLAN and WIFI?

Can I connect to WIFI with WLAN?To

connect

your computer to the internet on a

WLAN

, click on the

WLAN

icon at the top right of your Mac Computer screen. All the wireless networks in your area will now be shown. Select your own

WLAN

and enter your

WLAN

password.

Making a WLAN connection | Swisscom

https://www.swisscom.ch/en/residential/help/internet/wlan-verbindung-herstellen.htmlSearch for:

Can I connect to WIFI with WLAN?

What is a data VLAN?A

data VLAN

is a

VLAN

that is configured to carry user-generated traffic. A

VLAN

carrying voice or management traffic would not be part of a

data VLAN

. It is common practice to separate voice and management traffic from

data

traffic.Apr 7, 2014

VLAN Segmentation (3.1) > Cisco Networking Academy's Introduction ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=4Search for:

What is a data VLAN?

What is a VLAN trunk?

VLAN Trunking

Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of

Virtual Local Area Networks

(

VLAN

) on the whole local area network. To do this, VTP carries

VLAN

information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.

VLAN Trunking Protocol - Wikipedia

https://en.wikipedia.org/wiki/VLAN_Trunking_ProtocolSearch for:

What is a VLAN trunk?

What is broadcast domain in VLAN?A

VLAN

is a group of switch ports, within a single or multiple switches, that is defined by the switch hardware and/or software as a single

broadcast domain

. A

VLAN's

goal is to group devices connected to a switch into logical

broadcast domains

to control the effect that

broadcasts

have on other connected devices.Dec 5, 2003

CCNA Self-Study (ICND Exam): Extending Switched Networks with ...

www.ciscopress.com/articles/article.asp?p=102157Search for:

What is broadcast domain in VLAN?

What separates broadcast domains?Multi-network segments require a bridge, such as the networking device. A

broadcast domain

member can also be any device or computer that is directly connected to the same switch or repeater. Networking devices, such as routers, are used to

separate

the boundaries of

broadcast domains

.

What is Broadcast Domain? - Definition from Techopedia

https://www.techopedia.com/definition/24788/broadcast-domainSearch for:

What separates broadcast domains?

What is the VLAN 1?

VLAN

Design Guidelines (3.3.2.1) Cisco switches have a factory configuration in which default

VLANs

are preconfigured to support various media and protocol types. The default Ethernet

VLAN

is

VLAN 1

. It is a security best practice to configure all the ports on all switches to be associated with

VLANs

other than

VLAN 1

.Apr 7, 2014

Design Best Practices for VLANs (3.3.2) > Cisco Networking ...

www.ciscopress.com/articles/article.asp?p=2181837&seqNum=11Search for:

What is the VLAN 1?

What is the difference between tagged and untagged VLAN?The ports between switch and customers are "

untagged

" meaning for the customer the arriving packet is just a normal Ethernet packet. The port between router and switch is configured as a trunk port so that both router and switch know which packet belongs to which customer

VLAN

.Feb 25, 2014

Why and how are Ethernet Vlans tagged? - Network Engineering ...

https://networkengineering.stackexchange.com/.../why-and-how-are-ethernet-vlans-tagg...Search for:

What is the difference between tagged and untagged VLAN?

What is the default VLAN number?The

native VLAN

is the only

VLAN

which is not tagged in a trunk, in other words,

native VLAN

frames are transmitted unchanged. Per

default

the

native VLAN

is

VLAN

1 but you can change that: #show interface Fa0/8 trunk. ... Port Mode Encapsulation Status

Native vlan

. Fa0/8 on 802.1q other 2.Jan 6, 2013

What is difference between Default VLAN and Native VLAN? | Getting ...

https://supportforums.cisco.com/.../what-difference-between-default-vlan-and-native-vla...Search for:

What is the default VLAN number?

What is the use of native VLAN?A

Native VLAN

is nothing else than a default

VLAN

given that any port in a (CISCO)switch has to assigned to one

VLAN

. By default all ports (access links) belong to

VLAN

1 or

native VLAN

. Hello Sandy,

native vlan

is an 802.1Q concept: frames belonging to

native vlan

are sent untagged.Jan 13, 2010

Why Native VLAN exists on a Trunk? | LAN, Switching and Routing ...

https://supportforums.cisco.com/discussion/10811246/why-native-vlan-exists-trunkSearch for:

What is the use of native VLAN?

What is meant by VLAN?A

VLAN

is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because

VLANs

are based on logical instead of physical connections, they are extremely flexible.

Understanding and Configuring VLANs - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/.../vlans.htmlSearch for:

What is meant by VLAN?

What is the full form of VLAN?  What is a switch spoofing?

Switch spoofing

is a type of VLAN hopping attack, A

switch

interface which is connected to an end device (a computer or a printer) are normally in access mode and that end device will have access to its own VLAN. Traffic from other VLANs are not forwarded via that interface.

What is Switch spoofing attack and how to prevent Switch spoofing ...

www.omnisecu.com/.../what-is-switch-spoofing-attack-how-to-prevent-switch-spoofing-...Search for:

What is a switch spoofing?

What is double tagging attack?In a

double tagging attack

, an attacking host connected on a 802.1q interface prepends two VLAN tags to packets that it transmits. The packet (which corresponds to the VLAN that the attacker is really a member of) is forwarded without the first

tag

, because it is the native VLAN.

VLAN hopping - Wikipedia

https://en.wikipedia.org/wiki/VLAN_hoppingSearch for:

What is double tagging attack?

What is a Layer 3 interface?The logical Layer 3 VLAN interfaces provide logical routing interfaces to VLANs on Layer 2 switches. A traditional network requires a physical interface from a router to a switch to perform

inter-VLAN

routing.

Configuring Layer 3 Interfaces - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/.../l3_int.pdfSearch for:

What is a Layer 3 interface?

What is a SVI?A Switched Virtual Interface (

SVI

) is a virtual LAN (VLAN) of switch ports represented by one interface to a routing or bridging system. There is no physical interface for the VLAN and the

SVI

provides the Layer 3 processing for packets from all switch ports associated with the VLAN.

Switch virtual interface - Wikipedia

https://en.wikipedia.org/wiki/Switch_virtual_interfaceSearch for:

What is a SVI?

How do you configure a switch?To

configure

the default gateway for the

switch

, use the ip default-gateway command. Enter the IP address of the default gateway. The default gateway is the IP address of the router interface to which the

switch

connects. Use the following command to backup the

configuration

: copy running-config startup-config.Mar 31, 2014

Basic Switch Configuration (2.1) > Cisco Networking Academy's ...

www.ciscopress.com/articles/article.asp?p=2181836&seqNum=4Search for:

How do you configure a switch?

What is the use of inter VLAN routing?Virtual LANs (

VLANs

) divide one physical network into multiple broadcast domains. But,

VLAN

-enabled switches cannot, by themselves, forward traffic across

VLAN

boundaries. So you need to have

routing

between these

VLANs

which is called

interVLAN routing

.

What is interVLAN routing?

searchnetworking.techtarget.com/answer/What-is-interVLAN-routingSearch for:

What is the use of inter VLAN routing?

What is VLAN IPTV setup?Some ISPs provide other services aside from Internet such as

IPTV

and phone service to their customers. ... To configure

VLAN IPTV setup

on your Nighthawk router: Use a computer or Wi-Fi device that is connected to your Nighthawk router.

Configuring VLAN IPTV setup on your Nighthawk router | Answer ...

https://kb.netgear.com/29911/Configuring-VLAN-IPTV-setup-on-your-Nighthawk-routerSearch for:

What is VLAN IPTV setup?

What is VLAN bridge setup?In a LAN environment,

VLANs

divide broadcast domains. ... This type of routing is called inter-

VLAN

routing. On a smart switch, you can

set up

inter-

VLAN

routing by creating a Layer 3 interface, that is, a switch virtual interface (SVI). By default, a port is enabled for

bridging

rather than routing.

What is VLAN Routing? | Answer | NETGEAR Support

https://kb.netgear.com/24754/What-is-VLAN-RoutingSearch for:

What is VLAN bridge setup?

What is dot1q encapsulation?IEEE

802.1Q encapsulation

is configurable on Ethernet and EtherChannel interfaces. IEEE

802.1Q

is a standard protocol for interconnecting multiple switches and routers and for defining VLAN topologies. Use the

encapsulation dot1q

command in subinterface range configuration mode to apply a VLAN ID to the subinterface.

encapsulation dot1Q - Cisco

www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/nxos/.../encapsulation-dot1q.htmlSearch for:

What is dot1q encapsulation?

What is a router on a stick?

Router-on-a-stick

is a term frequently used to describe a setup up that consists of a

router

and switch connected using one Ethernet link configured as an 802.1q trunk link. In this setup, the switch is configured with multiple VLANs and the

router

performs all

routing

between the different networks/VLANs.

How To Configure Router On A Stick - 802.1q Trunk To Cisco Router

www.firewall.cx/cisco-technical.../cisco-routers/336-cisco-router-8021q-router-stick.htm...Search for:

What is a router on a stick?

What is 802.1 Q encapsulation?IEEE

802.1Q

is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.

IEEE 802.1Q - Wikipedia

https://en.wikipedia.org/wiki/IEEE_802.1QSearch for:

What is 802.1 Q encapsulation?

What is dot1q?IEEE

802.1Q

(sometimes referred to as 1Q or

DOT1Q

) is a industry standards based implementation of carring traffic for multiple VLANs on a single trunking interface between two Ethernet switches.

802.1Q

is for Ethernet networks only. Unlike ISL,

802.1Q

does not encapsulate the original Ethernet frame.Nov 27, 2007

VLAN Trunking using IEEE 802.1Q - Brad Hedlund

bradhedlund.com/2007/11/27/vlan-trunking-using-ieee-8021q/Search for:

What is dot1q?

What is integrated routing and bridging?

Integrated Routing and Bridging

(IRB) is a technique that allows a protocol to be

bridged

as well as

routed

on the same interface on a

router

. When a

router

is configured for IRB, it maintains the existing VLAN header when forwarding the frame between the interfaces.May 31, 2008

How does VLAN routing and bridging work when using IRB? | Network ...

www.networkworld.com/.../how-does-vlan-routing-and-bridging-work-when-using-irb-...Search for:

What is integrated routing and bridging?

How do you route between VLANs?

Step-by-Step Instructions

Enable routing on the switch with the ip routing command. ...

Make note of the VLANs that you want to route between. ...

Use the show vlan command in order to verify that the VLANs exist in the VLAN database. ...

Determine the IP addresses you want to assign to the VLAN interface on the switch.

More items...

Configure InterVLAN Routing on Layer 3 Switches - Cisco

www.cisco.com/c/en/us/support/docs/...vlan.../41860-howto-L3-intervlanrouting.htmlSearch for:

How do you route between VLANs?

What is the BVI interface?

BVI

can replace Vlan

interfaces

. So instead of having a Vlan

interface

that routes packets (coming from acces port attached to that vlan number) that needs to be routed outside the vlan, the

BVI

does the same thing, routing packets outside de layer 2 domain from L2

interfaces

that are bridged to that

BVI

.Mar 31, 2011

What is a Cisco BVI interface? What is it used for? - Server Fault

https://serverfault.com/questions/254347/what-is-a-cisco-bvi-interface-what-is-it-used-forSearch for:

What is the BVI interface?

What is a bridge domain?A

bridge domain

is a set of logical ports that share the same flooding or broadcast characteristics. Like a virtual LAN (VLAN), a

bridge domain

spans one or more ports of multiple devices.

Understanding Layer 2 Bridge Domains - Technical Documentation ...

https://www.juniper.net/documentation/en.../layer-2-services-bridging-overview.htmlSearch for:

What is a bridge domain?

What is a BDI interface?"Bridge domain

interface

is a logical

interface

that allows bidirectional flow of traffic between a Layer 2 bridged network and a Layer 3 routed network traffic.

Bridge domain interfaces

are identified by the same index as the bridge domain. ... And this L3 logical

interface

is the

BDI

.Dec 5, 2012

A Networker's Log File: Concept of Cisco Bridge Domain Interfaces (BDI)

networkerslog.blogspot.com/2012/12/concept-of-bridge-domain-interfaces-bdi.htmlSearch for:

What is a BDI interface?

What is a service instance?An Ethernet flow point (EFP)

service instance

is a logical interface that connects a bridge domain to a physical port or to an EtherChannel. Configuring a

service instance

on a Layer 2 port creates a pseudoport or EFP on which you configure EVC features.

Ethernet Virtual Connections (EVCs) - Cisco

www.cisco.com/c/en/us/td/docs/switches/lan/.../ethernet_virtual_connection.pdfSearch for:

What is a service instance?

What does the Accessport do?The

Accessport

is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Subaru. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations.

COBB Tuning - Subaru Accessport V3 (003)

https://www.cobbtuning.com/products/accessport/subaru-accessport-v3-ap3-sub-003Search for:

What does the Accessport do?

Who owns Cobb Tuning?

COBB Tuning

.

COBB Tuning

, known by the tagline "Access The Potential" is an American company providing aftermarket automobile

tuning

services. Founded in 1999 by Trey

Cobb

at Rockwall, they are now headquartered at Austin, Texas.

COBB Tuning - Wikipedia

https://en.wikipedia.org/wiki/COBB_TuningSearch for:

Who owns Cobb Tuning?

What is the access port?An "

access port

" is a type of connection on a switch that is used to connect a guest virtual machine that is VLAN unaware. This

port

provides the virtual machine with connectivity through a switch that is VLAN aware without requiring it to support VLAN tagging.

What Is an Access Port? - IBM

https://www.ibm.com/support/knowledgecenter/en/SSB27U_6.4.0/.../hcpa643.htmSearch for:

What is the access port?

[delicatesheepsalad-blog]

Acutelearn is leading training company provides corporate, online and classroom training on various technologies like AWS, Azure, Blue prism, CCNA, CISCO UCS, CITRIX Netscaler,CITRIX Xendesktop, Devops chef, EMC Avamar, EMC Data Domain, EMC Networker, EMC VNX, Exchange Server 2016, Hyper-V, Lync server, Microsoft windows clustering, Netapp, Office 365, Openspan, RedHat openstack, RPA, SCCM, vmware nsx 6.0, vmware vrealize, vmware vsphere, windows powershell scripting. For more information reach us on +917702999361 / 371  www.acutelearn.com

CCNA Course content:

Cisco Certified Network Associate (200-125) Network Fundamentals Compare and contrast OSI and TCP/IP models Compare and contrast TCP and UDP protocols Describe the impact of infrastructure components in an enterprise network Firewalls Access points Wireless controllers

Describe the effects of cloud resources on enterprise network architecture Traffic path to internal and external cloud services Virtual services Basic virtual network infrastructure

Compare and contrast collapsed core and three-tier architectures Compare and contrast network topologies Star Mesh Hybrid Select the appropriate cabling type based on implementation requirements Apply troubleshooting methodologies to resolve problems Perform and document fault isolation Resolve or escalate Verify and monitor resolution Configure, verify, and troubleshoot IPv4 addressing and subnetting Compare and contrast IPv4 address types Unicast Broadcast Multicast Describe the need for private IPv4 addressing Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements in a LAN/WAN environment Configure, verify, and troubleshoot IPv6 addressing Configure and verify IPv6 Stateless Address Auto Configuration Compare and contrast IPv6 address types Global unicast Unique local Link local Multicast Modified EUI 64 Autoconfiguration Anycast LAN Switching Technologies Describe and verify switching concepts MAC learning and aging Frame switching Frame flooding MAC address table Interpret Ethernet frame format Troubleshoot interface and cable issues (collisions, errors, duplex, speed) Configure, verify, and troubleshoot VLANs (normal/extended range) spanning multiple switches Access ports (data and voice) Default VLAN Configure, verify, and troubleshoot interswitch connectivity Trunk ports Add and remove VLANs on a trunk DTP, VTP (v1&v2), and 802.1Q Native VLAN Configure, verify, and troubleshoot STP protocols STP mode (PVST+ and RPVST+) STP root bridge selection Configure, verify and troubleshoot STP related optional features PortFast BPDU guard Configure and verify Layer 2 protocols Cisco Discovery Protocol LLDP Configure, verify, and troubleshoot (Layer 2/Layer 3) EtherChannel Static PAGP LACP Describe the benefits of switch stacking and chassis aggregation Routing Technologies Describe the routing concepts Packet handling along the path through a network Forwarding decision based on route lookup Frame rewrite Interpret the components of a routing table Prefix Network mask Next hop Routing protocol code Administrative distance Metric Gateway of last resort Describe how a routing table is populated by different routing information sources Admin distance Configure, verify, and troubleshoot inter-VLAN routing Router on a stick SVI Compare and contrast static routing and dynamic routing Compare and contrast distance vector and link state routing protocols Compare and contrast interior and exterior routing protocols Configure, verify, and troubleshoot IPv4 and IPv6 static routing Default route Network route Host route Floating static Configure, verify, and troubleshoot single area and multi-area OSPFv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub, virtual-link, and LSAs) Configure, verify, and troubleshoot single area and multi-area OSPFv3 for IPv6 (excluding authentication, filtering, manual summarization, redistribution, stub, virtual-link, and LSAs) Configure, verify, and troubleshoot EIGRP for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub) Configure, verify, and troubleshoot EIGRP for IPv6 (excluding authentication, filtering, manual summarization, redistribution, stub) Configure, verify, and troubleshoot RIPv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution) Troubleshoot basic Layer 3 end-to-end connectivity issues WAN Technologies Configure and verify PPP and MLPPP on WAN interfaces using local authentication Configure, verify, and troubleshoot PPPoE client-side interfaces using local authentication Configure, verify, and troubleshoot GRE tunnel connectivity Describe WAN topology options Point-to-point Hub and spoke Full mesh Single vs dual-homed Describe WAN access connectivity options MPLS Metro Ethernet Broadband PPPoE Internet VPN (DMVPN, site-to-site VPN, client VPN) Configure and verify single-homed branch connectivity using eBGP IPv4 (limited to peering and route advertisement using Network command only) Describe basic QoS concepts Marking Device trust Prioritization Voice Video Data Shaping Policing Congestion management Infrastructure Services Describe DNS lookup operation Troubleshoot client connectivity issues involving DNS Configure and verify DHCP on a router (excluding static reservations) Server Relay Client TFTP, DNS, and gateway options Troubleshoot client- and router-based DHCP connectivity issues Configure, verify, and troubleshoot basic HSRP Priority Preemption Version Configure, verify, and troubleshoot inside source NAT Static Pool PAT Configure and verify NTP operating in a client/server mode Infrastructure Security Configure, verify, and troubleshoot port security Static Dynamic Sticky Max MAC addresses Violation actions Err- disable recovery Describe common access layer threat mitigation techniques 802.1x DHCP snooping Nondefault native VLAN Configure, verify, and troubleshoot IPv4 and IPv6 access list for traffic filtering Standard Extended Named Verify ACLs using the APIC-EM Path Trace ACL Analysis tool Configure, verify, and troubleshoot basic device hardening Local authentication Secure password Access to device Source address Telnet/SSH Login banner Describe device security using AAA with TACACS+ and RADIUS Infrastructure Management Configure and verify device-monitoring protocols SNMPv2 SNMPv3 Syslog Troubleshoot network connectivity issues using ICMP echo-based IP SLA Configure and verify device management Backup and restore device configuration Using Cisco Discovery Protocol or LLDP for device discovery Licensing Logging Timezone Loopback Configure and verify initial device configuration Perform device maintenance Cisco IOS upgrades and recovery (SCP, FTP, TFTP, and MD5 verify) Password recovery and configuration register File system management Use Cisco IOS tools to troubleshoot and resolve problems Ping and traceroute with extended option Terminal monitor Log events Local SPAN Describe network programmability in enterprise network architecture Function of a controller Separation of control plane and data plane Northbound and southbound APIs

Address: Acutelearn Technologies, Flat No 80 & 81, 4th floor, Above Federal Bank Building, Besides Cafe coffee day Lane, Madhapur, Hyderabad-500081

[mikowang-blog1]

Layer 3 Switch VS. Router: Which to Choose?

Speaking of layer 3 switch and router, everyone may be confused about the two terms, because they both take IP packets, examine the destination address and pass the packet according to routing rules. It seems that layer 3 switch is identical to a router in this way. Actually, they do have some difference not only in function, but also other aspects. This article will explain how they differ from each other and a better option will be suggested for your reference.

Basics About Layer 3 Switch and Router

In general, a Layer-3 switch (routing switch) is primarily a switch (a Layer-2 device) that has been enhanced or taught some routing (Layer 3) capabilities and it was conceived as a technology to improve on the performance of routers used in large local area networks (LANs) like corporate intranets.

A router is a Layer-3 device that simply does routing only. In the case of a switching router, it is primarily a router that may use switching technology (high-speed ASICs) for speed and performance (as well as also supporting Layer-2 bridging functions).

Comparison Between Layer 3 Switch and Router

Performance versus cost—Layer 3 switches are much more cost effective than routers for delivering high-speed interVLAN routing. High performance routers are typically much more expensive than Layer 3 switches.

Port density—Layer 3 switches, have more higher port count. Routers on the other hand typically have a much lower port density.

Flexibility—Layer 3 switches allow you to mix and match Layer 2 and Layer 3 switching, which means that you can configure a Layer 3 switch to operate as a normal Layer 2 switch, or enable Layer 3 switching as required.

WAN technologies support—Layer 3 Switch is limited to usage over LAN environment where Inter VLAN routing can be performed. However, when it comes to working on WAN and edge technologies, Layer 3 Switch lags behind. Router is the front runner in such scenario where WAN technologies such as Frame Relay or ATM need to be fostered.

Hardware/Software decision making—The key difference between Layer 3 switches and routers lies in the hardware technology used to build the unit. The hardware inside a Layer 3 switch merges that of traditional switches and routers, replacing some of a router’s software logic with hardware to offer better performance in some situations.

Layer 3 Switch & Router: When and Where to Use

Now let’s look into the scenarios when should Layer 3 switch or router be used.

When A Layer 3 Switch is needed?

1. If you need to connect your Hub rooms and make a L3 decision and more Ethernet interfaces are required for direct server form connectivity, then you can use a switch.

2. If you need to connect your inter-offices via l2 circuits by the ISP you can directly terminate the link on the switch and configure routing on the same.

3. If you need more through-put and direct access and interVLAN communication, switch is the best option.

When A Router is Needed?

1. If you are connecting an ISP directly to provide internet, then router is the box you need to deploy.

2. If you need to build tunnels between your offices (connecting 2 offices over public internet securely ), then you need a router.

3. If you are a CE participating in MPLS configuration, then you need a router.

Conclusion

Having explained the mechanism of both a router and a Layer 3 switch, I guess you’ve already have an understanding of them. Simply put, they perform the same function but each have pro's and con's as to limitations. Generally, Layer 3 switches are primarily used in the LAN environment, where you need routing. Routers are used in the WAN environment. These days lots of people have started using layer 3 switches in WAN environment, like MPLS. If you are looking for switches or any fiber optic cables and optical transceivers for switches, take FS.COM as a consideration.