基于LSP路径拥塞的分布式流量工程算法  

Distributed Traffic Engineering Algorithm Based on LSP Congestion

作　　者：冯春燕[1] 张晨[1] 李金岭[1] 丁炜[1] 

机构地区：[1]北京邮电大学通信网络综合技术研究所,北京100876

出　　处：《计算机工程》2006年第6期110-111,133,共3页Computer Engineering

基　　金：博士点基金资助项目(2003001312);国家自然科学基金资助项目(60372101)

摘　　要：提出了一种MPLS网络并行路径间合理分配流量实现流量均衡的分布式流量工程算法DITB。该算法利用LER与LSR各自在统计网络状态信息方面的优势,通过引入3种消息实现彼此间网络状态信息的传送,由LER将整条路径的拥塞状况与单个链路的拥塞状况相结合,直接给出合理的流量均衡方案,达到流量工程的目的。通过仿真分析验证,该算法网络开销少、运算速度快、优化效果较为明显。A distributed traffic engineering algorithm DITB applied into the MPLS network is presented, which implements the traffic balance through distributing traffic load into parallel paths. DITB algorithm realizes the state information interactive through three messages based on the advantages of LER and LSR in the network state information statistics. With the collection of information, LER considers both the whole LSP congestion and the single link congestion to offer a reasonable solution of the traffic distributions. The simulation analysis shows that the proposed algorithm can be implemented in less network cost, higher computation speed, and more obvious optimization performance.

关 键 词：流量工程 并行路径 分布式 MPLS 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]