一种新的基于T-MPLS网络的分布式拓扑发现算法

his article researches topology discovery issues in Transport MPLS networks and a novel distributed topology discovery Algorithm is proposed. The Algorithm uses single-hop topology messages from neighbor to realize the topology discovery. By introducing cyclical concept to the topology discovery algrithm, the number of topology discovery messages is keeping in a controllable status. Thus, the algorithm can avoid the burst of topology discovery messages and reduce the risk of network congestion. Comparing with existing topology discovery algorithms which based on the flooding mechanism, the new algorithm has the advantages of small overhead and good controllability. Based on model building and analysis of simplified Ring networks and the Mesh networks, this article proves that the distributed topology discovery algorithm is effective in controllability and reducing network congestion.