流量工程在IP组播中的实现  

Realization of TE in IP Multicast

作　　者：张军[1] 李江[1] 杜新华[1] 

机构地区：[1]上海交通大学现代通信研究所,上海200030

出　　处：《通信技术》2003年第8期42-44,共3页Communications Technology

摘　　要：随着IP网络的进一步发展,用户不仅要求Web等一般的数据传输,而且对实时数据流的需求也急剧上升。这些实时业务往往是以组播方式向用户提供服务。而传统的IP组播已经很难满足用户对业务的QoS的需求。对流量工程技术在IP组播中的实现进行讨论,并提出了一个基于QoS的IP组播流量工程模型。最后总结了将来的研究方向。With the development of Internet,th ere are not on ly requirements for the ordinary data communications such as Web,but rapidly incr easing deman ds for the real-time stream transmis sion which mainly based on I P multica st mechanism.However,the traditional IP multicast distribution can' t comply with specific quality of service(QoS)requirements.In this pa-per,w e discuss the traffic engineering implemented in IP multicast and p ropose a gen eric framework for the en forcement of QoS-based multicast traffic engineering policies.Finally,the paper c oncludes by a description of future work.

关 键 词：TE(traffic engineering) QOS PHB DSCP DIFFSERV 组播分发树 

分 类 号：TN91[电子电信—通信与信息系统]