新世纪中网络发展的新动向

Network Development Trends in the New Century

李津生教授,长期从事信息网络的教学与科研工作,先后承担十余项与通信网络有关的国家自然基金、863和国家攻关项目及重大课题,对通信网络理论及技术走势有其独到见解。未来网络将在光网络、局域In-ternet、无线Internet和电子商务等四个领域内发展;网络连接费用在不断下调,不少网络运营商已开始将业务重心从提供连接服务向提供内容服务转移。针对网络发展趋势介绍几种有重大影响的网络技术(包括以太网、光网络、内容配送网及可扩展标记语言)的现状、动向和应用前景。

Optical network,LAN,wireless Internet and E -business are the main areas of network develop-ment.With the continuously decrease of network connection fees,some net-work operators have changed their fo-cuses from connection services to con-tent services.The present status,trends and utilization prospect of serveral im-portant network tech nologies,such as Ethernet,Optical Networks,Con tents Delivery Network(CDN)and Ex-tensible Markup Language(XML ),are introduced in this paper.