Abstract: On the basis of analysis of rerouting scheme for MPLS network, a new method of computing backup path is advised, where the computation of backup path is divided into two steps: pro-processing and on-line processing. Based on the new method, a Fundamental Circuit Rerouting(FC-R) scheme is proposed. Simulation results and analysis show that FC-R has many advantages as follows shortening recovery time, increasing resource utilization, supporting link failure and node failure, and saving the time in on-line computing.

Key words: fundamental circuit, rerouting, fault restoration, Multi-Protocol Label Switching(MPLS)

摘要： 研究MPLS网络中的重路由故障恢复机制，提出一种新的计算备用路径的方法，将备用路径的计算分为预处理和在线计算2个过程，给出一种基于基本回路的重路由故障恢复机制(FC-R)。仿真分析表明，FC-R恢复时间较短，可以对抗节点故障或链路故障，大大缩短在线计算时间，减轻节点负担，能够得到性能较优的备用路径，进一步节省网络资源。

关键词: 基本回路, 重路由, 故障恢复, 多协议标签交换

CLC Number: 

• TP393