用于网络互连点的双向区分服务技术方案  

Bidirectional Differentiated Services Technologies Solution Used at Interconnection of Networks

作　　者：杨国良[1] 张光昭[2] 

机构地区：[1]中山大学信息科学与技术学院,广州510275 [2]中国电信股份有限公司广州研究院,广州510630

出　　处：《电信科学》2008年第1期64-70,共7页Telecommunications Science

摘　　要：在网络内部,DiffServ可以提供很好的QoS保障,但在跨运营商的情况下,只能提供出方向的保障。本文提出一种新的双向区分服务技术方案——Bi-DiffServ,可以用于各运营商网络之间的互连点上,为重要流量提供时延和带宽的保障。通过仿真和现网实验证明,该方案简单、高效,能明显改善重要流量的时延、带宽等网络服务质量。DifiServ can provide excellent quality of service within the network. However, it can only be guaranteed at outbound direction between different carriers. This paper proposes a new bidirectional differentiated services policy （Bi-DifiServ）, which can be used at network interconnection to protect the important traffic with lower latency and enough bandwidth. Through simulation and test in the network, it is proved that Bi-DifiServ is an efficient and simple policy which can improve the quality of service for important traffic with lower latency and guaranteed bandwidth.

关 键 词：域间服务质量 双向区分服务 网络互连 流量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] F719[自动化与计算机技术—计算机科学与技术]