网络技术在高速发展。一方面,我们面临着许多选择,是传统以太网络技术、千兆以太网、还是革命性的ATM技术;另一方面,我们又要考虑用户对网络技术及信息资源的依赖越来越大。这两方面的因素使得我们在网络建设中,要考虑更多的方面,如技术问题、经济问题、整个网络的安全、可靠、备份等众多问题。 ATM技术是一种革命性的可按带宽分配或根据用户需求进行分配的技术,解决了传统网络传输中的技术问题。但是,我们又面临了新的问题,即许多应用和客户端毕竟是传统以太网,直接的ATM到桌面面临着极高的代价。当主干网采用ATM技术时,可以用ELAN The rapid development of network technology. On the one hand, we are faced with many choices: traditional Ethernet technology, Gigabit Ethernet, or revolutionary ATM technology. On the other hand, we also consider that users rely more and more on network technologies and information resources. These two factors make us in the network construction, to consider more aspects, such as technical issues, economic issues, the entire network security, reliability, backup and many other issues. ATM technology is a revolutionary technology that can be distributed according to bandwidth or allocated according to user needs, and solves the technical problems in traditional network transmission. However, we are faced with the new problem that many applications and clients, after all, are traditional Ethernet networks and direct ATM to desktop costs are extremely high. When the backbone network using ATM technology, you can use ELAN