layer 3 ethernet switch

investment by manufacturers in key network equipment, so that in a very short period of time, the emergence of a traditional second-layer switch, to the Advanced Layer-3 Switch, to the latest layer-4 or even

connected to the HUB and the port of the traditional switch form a broadcast domain. When the switch receives a broadcast frame, it forwards the frame to each port except the port on which it receives the frame. Each connected device receives and processes the frame. As the network scale expands, the number of broadcast packets in the broadcast domain also increases. All these broadcast packets will seriou

What is the second-layer forwarding mechanism? Learning thread and message forwarding thread.Layer 2 only depends on the MAC addressIP-independent So the IP-MAC binding on the second layer is invalid. The forwarding mechanism of a layer-3 Ethernet

1. Functions of the data link layer Implements data error-free transmission. It receives raw data from the physical layer to form frames and bit groups) and transmits data between network devices. The frames contain the physical addresses of the active and target sites, the device that works on this layer has a switch

L2 exchange technology:The layer-2 switching technology is mature. The layer-2 switch is a data link layer device that can identify the MAC address information in the data packet and forward it according to the MAC address, the MAC addresses and corresponding ports are recorded in an internal address table. The specifi

to identify the layer-4 protocol port on the layer-3 switch, and only adds some value-added software on the layer-3 switch. As a result, it does not work on the transmission

Lan exchange technology can also be called layer-2 Switch Exchange Technology, the content mainly includes the working principle of Layer 2 switching, network loops, and how to use the Spanning-Tree Protocol to solve Network loops, VLANs, and VTP technologies, this article mainly introduces the working principle of L2 switches and the dangers of network loops. Ot

integrated and complete solution. 3. In consideration of market needs, switch costs, and proprietary intellectual property rights, the design of a layer-3 Switch has developed the VLSW4150 series switch with proprietary intellect

(1) Differences Between Layer 2 switches, Layer 3 switches, and Layer 4 switches The layer-2 switching technology is mature. The layer-2 switch is a data link

There are many things worth learning about layer-3 switching technology. Here we mainly introduce the comprehensive comparison between layer-2 switching and layer-3 switching technology. In today's network construction, the layer-

Exchange technology is moving in two directions. One Direction is faster and faster, has jumped from the gigabit to the million trillion. Another direction is from the initial 2-tier exchange to the 3-tier exchange, which has now been developed to the seventh layer of the Network application layer Exchange. Figuratively speaking, the speed is more and more fast

Currently, few second-layer switches are used, mainly because of their performance limitations. We believe that with the development of the communication industry, switches with better performance will continue to emerge. In today's network construction, layer-3 switches are recognized and praised by users for their efficient performance and superior performance/

the transfer path, which can be used only once or stored for future use. Then, data packets are quickly sent through a virtual circuit bypass the router. The emergence of layer-3 switching technology solves the problem that the subnet must be managed by routers after the network segments are divided in the LAN, and solves the network bottleneck caused by the low speed and complexity of traditional routers.

Three-layer switch compared to routers in a large LAN, this function is perfect, to master the three-layer switch is very helpful, but now some manufacturers of switches can also directly connect the Internet to provide router capabilities. Comparison of three-layer

This digest is from http://www.pconline.com.cn/pcjob/ittest/network/0312/258919.htmlOther literature http://www.jztop.com/s/jiaohjjs/ Comparison of three-layer switch and router In order to meet the challenge of deepening the network application, the network has been developing rapidly in both scale and speed, the speed of LAN has been improved from the initial 10mbit/s to the 100mbit/s, and the Gigabit

the requirements of policy-based networking, advanced QoSQualityofService: service quality) and other service improvements. The huge market potential has greatly stimulated significant investment by manufacturers in key network equipment, so that in a very short period of time, the emergence of a traditional second-layer switch, to the Advanced Layer-

(1) The animation effect here refers to the interface switch animation effect, we often fade in and out, right out of exiting and so on, of course, there are some advanced animation, this animation suitable for the game class, for the general app will appear too fancy.(2) We do not add any framework (Quartzcore) here or import any header files (QuartzCore.h), you can create an object, such as Animation1, directly with Catransiton (the subclass of Caan

Q: repeater,Hub,Bridge, Vswitches, routers,GatewayInLayer-7 protocolWhich layers? A:Repeater, Hub:-layer 1st (Physical Layer) Bridge and switch: Layer 3 (data link layer) Vro: Layer

, provides line rate performance at all levels. This integrated structure also introduces policy management attributes, which not only associates Layer 2 with Layer 3, but also provides traffic prioritization, secure access mechanisms, and other functions.The layer-3

networking, advanced QoSQuality of Service: Service quality) and other Service improvements. The huge market potential has greatly stimulated significant investment by manufacturers in key network equipment, so that in a very short period of time, the emergence of a traditional second-layer switch, to the Advanced Layer-3