layer 3 ethernet 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

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 ph

Three-layer Ethernet switch ip fdb table and its code example: How to filter incoming and outgoing packets in the access list when a three-layer Ethernet switch suffers from hardware processing problems in the following text, what

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 SwitchSimple environment configuration instance for cisco router layer-3

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

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

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

high, but to support a large number of layer-3 protocols, such as IP, IPX, AppleTalk, DECnet, and so on, these protocols have different packaging formats, it is easy to implement with software, but it is very difficult to implement with hardware. There are too many protocols to implement forwarding with hardware, which will only bring about a sharp increase in costs. What is a

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

Station B, because Station B and station A are not in the same subnet, station A will not encapsulate the destination MAC address of Station B in the Ethernet frame to be sent by Station. This is error 2. In addition, the layer-3 Switching Module receives the Ethernet frames sent from Station A to Station B. The

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

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

Intranet. It combines the advantages of layer-2 switches and layer-3 routers into a flexible solution to provide line rate performance at all levels. This integrated structure also introduces policy management attributes, which not only associate Layer 2 with Layer

Modern LAN infrastructure needs to provide a new solution to the problem of data transmission through network boundaries. This requires a second-layer switch and LAN router at the same time, in addition, the latency is less than the brand-new device of the traditional LAN router. We usually call it a layer-3

latest test center Tester of Spirent for the first time, and conducted an in-depth test on several typical layer-3 switches on the market. The test results can be used as a reference for enterprises to select and deploy layer-3 switches. As the latest generation of Spirent testing equipment, TestCenter embodies the co

advantages of layer-2 switches and layer-3 routers into a flexible solution to provide line rate performance at all levels. This integrated structure also introduces policy management attributes, which not only associate Layer 2 with Layer

// provides the DHCP ServiceIp routing // enable the routing module on the layer-3 SwitchExit Layer-3 Switch configuration:Vtp mode server // defines VTP working mode as sever modeVtp domain centervtp // define the name of The VTP domain as centervtpVlan 2 name vlan2 // def

There are many things worth learning about layer-3 switches. Here we will mainly introduce the future trend of layer-3 switch technology. From the current Ethernet switch market, there

With the rapid development of the Interconnection Network and the advancement of social information, the network is rapidly developing in terms of scale and speed. The speed of the local area network has grown from 10 mbit to 100 mbit, now, Gigabit Ethernet is widely used. In the past, we used shared LAN to share the same network transmission medium. CSMA/CD, token ring, and token bus were typical access control methods. Exchange LAN refers to the dat