摘要
随着光通信以及新兴数据业务的不断发展，考虑保护的城域光传送环将是目前以及今后网络的热点。对于城域光传送网络，已经成熟的SDH技术以及近几年不断发展的DWDM技术为其应用提供了多种技术方案。针对几种城域光网络技术方案进行了详细介绍和经济分析，介绍了FlexRing在美国在线的成功应用。
With the great development of optical communications and new data services the protected metropolitan area optical transport ring will become the hot point of current and future networks． The matured SDH technology and the onward DWDM technology have provided multiple technical solutions for metro optical transport networks． The several metro optical networking solutions are introduced in detail and analyzed in economic terms． Finally the successful application of Ericsson ERION FlexRing by AOL is introduced．
出处
《现代电信科技》
2000年第12期37-39,共3页
Modern Science & Technology of Telecommunications
