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Switching technology present situation and development trend (英语论文).doc

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Switching technology present situation and development trend (英语论文)

Switching technology present situation and development trend Abstract：Direction in the future, more extensible features will become the important characteristics of a new generation of Internet, the exchange of technology, will be as a key technology to host this extensible features. Switching technology in scale, function, performance, safety and service and other aspects have better extensibility features, will be a new generation of Internet architecture in the future. Keywords: Network technology ;The Internet ;Switching technology 1 The present situation of the exchange of technology The rapid development of network technology, Ethernet is always dominant. However, with the deepening of the network technology application, the network development scale and speed are speeding. Not only the speed of the LAN got improved, gigabit Ethernet also gradually became popular. attention to network of high reliability, high performance, easy maintenance and reduced cost, and these factors is dependent on the using kind of networking technology; Equipment vendors would on the basis of not harm the interests of the user network functions and pursue the considerable profit. About the network, there have been a mature traditional layer 2 switching technology, and the function of the routing layer 3, and a high service level of network layer 7. 2 switching technology of A single traditional layer 2. More traditional layer 2 switching technology, is a special single, it contains only the data link layer forward. Layer 2 switching technology is mostly used for small local area network (LAN), the machine Numbers keep in 20 or 30 sets of the following is the security of the network environment, fast switching function, multiple access port, low price which the three layer 2 switching technology has has solve the problem that the small network users. 2.1 The third layer switching technology with routing function In order to solve the problems of the broadcast domain, for t