摘要
提出了一种在光网络中实现流量工程的负载均衡动态路由算法(LBDRO)。该算法通过新定义的链路关键度函数和链路当前可用带宽确定链路动态成本,并依据该动态成本运用最短路径优先算法为到达的LSP请求建立动态成本优化路径。该算法的计算复杂度低,仿真实验表明,与MHA、WSP、MIRA算法相比,在光传输网络中,该算法在降低LSP建立请求服务拒绝率、均衡网络负载以及链路失效后重路由等方面有很好的性能。
A load balancing dynamic routing algorithm in optical networks （LBDRO） are proposed. The algorithm which defines link cost through the innovative function of link importance value and link residual bandwidth, while choosing a path through the shortest path algorithm based on link cost. The complexity of the algorithm is low. Compared with MHA, WSP and MIRA via simulation, the algorithm in modem optical transport networks performance better in decreasing refusing rate, balancing network load and rerouting after link failure.
出处
《光通信技术》
CSCD
北大核心
2007年第9期36-39,共4页
Optical Communication Technology
基金
国家自然科学基金项目 编号:60572008
关键词
光网络
负载均衡
流量工程
链路关键度
optical netowiks
load balancing
traffic engineering
link importance value
