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What is the difference between a layer-2 switch, a layer-3 switch, and a layer-4 switch?

1) layer-2 Exchange Technology The layer-2 switching technology is relatively mature. The layer-2 switch is a data link layer device that can identify MAC locations in data packets.Address information, which is forwarded based on the MAC address, and the corresponding MAC ad

What is a layer-1 switch, layer-2 switch, and layer-3 switch?

Simply put: Layer-1 switchOnly physical layer protocols are supported (one phone-controlled switch can be called ???)L2 SwitchSupports physical layer and data link layer protocols, such as Ethernet switches.L3 SwitchSupports physical

The layer-3 switch you know works like this. It works like a layer-3 switch.

The layer-3 switch you know works like this. It works like a layer-3 switch. Why do we say that the L3 forwarding performance of a layer-3

Configuration example of cisco router and layer-3 Switch environment, cisco layer-3 Switch

Configuration example of cisco router and layer-3 Switch environment, cisco layer-3 SwitchSimple environment configuration instance for cisco router layer-3

How to identify a layer-3 switch or a layer-2 Switch

Example: 3026 2012 5012. The value of 2nd bits is 0 ~ 4 indicates that it is a layer-2 switch. 3550. The fifth digit is 5 ~ 9 indicates that it is a layer-3 switch. LI (LitesoftwareImage) indicates that the device is a weak feature version. SI (StandardsoftwareImage) i

Layer-3 Switch learning-precise match and longest match of layer-3 table items

1,Layer-3 forwardingYesRoute information is requiredThe route selection in the forwarding process determines the final egress of the message,L3 SwitchJust put thisRoute functions are integrated into the switch ChipGo. 2,Route SelectionExistExact matchAndLongest matchTwo methods. 2.1,Exact matchThat is, the destination IP address and the route address information

Hub, router, switch, layer-3 Switch Technology)

when he cannot find the address, and the hub is only responsible for forwarding the email regardless of the Bounce Message. Vro A Router operates at the network layer, the third layer in the OSI Layer-7 network model. It works by removing the information of the second layer (data link

Server Load balancer principles and practices 16th Server Load balancer Network Design regards Server Load balancer as a layer-2 switch or a layer-3 Router

of using Server Load balancer to improve the scalability, availability, and manageability of Server clusters. This chapter mainly discusses the deployment of Server Load balancer and several solutions for deploying Server Load balancer in the existing network. We will also discuss how to design highly available solutions to implement fault tolerance for different network components throughout the network, including Load balancer. Before discussing the network structure, we need to understa

Test the layer-2 and layer-3 Performance of a 24-port full Gigabit Switch

Performance Tests on layer-2 and layer-3 vswitches with 24 ports and all-gigabit vswitches have encountered many problems recently. Experts have said that QoS ensures port congestion, high-priority data is processed first. It makes sense to improve the utilization of 24 fully-gigabit switches with insufficient bandwidth. Three-tier competition

Comprehensive Analysis of layer-3 Switch basic knowledge

Layer-3 switches are quite common, so I have studied the comprehensive description of layer-3 switch technology. Here I will share it with you and hope it will be useful to you. The emergence of layer-

Viewpoint: Analysis of layer-3 Switch Technical Principles

There are many things worth learning about layer-3 switches. Here we mainly introduce the technical principles of layer-3 switches. In short, layer-3 switching technology is layer-2 swi

China 3 Switch 3 layer VLAN isolation Configuration

China 3 layer Switch VLAN isolation192.168.1.0---------g1/0/1 S SW g1/0/2-------||Prohibition of 1.0, 3.0, 4.0 and 2.0 visits[H3c]acl Num 3000[H3c-acl-adv-3000]rule deny IP source destination 1.0 Access 2.0[H3c-acl-adv-3000]rule de

Describes how to connect to a layer-3 Switch

, network mutual access is not frequent, and the routing is complicated, it is best to use the intermediate node router connection scheme. However, it is best to use a layer-3 Switch Connection Mode in a few scenarios where subnet connections and frequent intercommunication between networks. In addition, it can save equipment investment, because

Layer-3 Switch: Multiple forwarding of one route

Layer-3 Switch: the principle of layer-3 switch is that two hosts A and B Using IP addresses communicate with each other through the layer-3

Experts tell you what a layer-3 switch is.

Experts tell you what a layer-3 switch is. Now every household has their own computer and understands what a layer-3 switch is. At that time, the layer-

Instance analysis practical application of distributed layer-3 Switch

options for L3 protocols to meet the needs of various advanced network applications. 2. Comparison with L2 Switching The distributed L3 switch supports popular routing protocols and organically combines the advantages of L2 switches with vrouters. l3 switches can control IP addresses, making it easier to build large-scale local area networks. 3. Differences from centralized

Advanced Tutorial: Learn about the basic features of a layer-3 Switch

Beginner: I learned about the basic features of a layer-3 Switch. Some time ago, my colleagues asked me questions about the basic features of the layer-3 Switch. At that time, I did not give a positive answer, I was also the first

Experiment on single-arm routing using a layer-3 Switch

Experiment on single-arm routing using a layer-3 Switch In the real environment, sometimes the gateway is not necessarily enabled on the router, sometimes the single-arm routing function is not necessarily connected to the interface on the router, you can use a layer-3

Comprehensive Understanding of mainstream layer-3 switch technologies

In order to help enterprise users better understand the meaning of layer-3 Switch, understand the various new technologies supported by the leading layer-3 switch in the current market, and their position and role in the next-gene

Purchase of high-quality and inexpensive layer-3 Switch (1)

We know that the core part of a network is the key to the entire networking, and many enterprises have chosen layer-3 switches as the core of the entire network, A layer-3 switch is a common vswitch with a route function added. Do not underestimate the added routing function

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