下一代分组传送网的生存性技术研究

In this paper, based on the state art of the packet transmission network, several key survivability technologies of the packet transmission network (T-MPLS connection-oriented network protection mechanisms, path-based optimization protection mechanism of equal-cost multi-path routing (ECMP), as well as path computation element (PCE) for multi-domain survivability mechanism) were summarized by their respective advantages, also the specific survivability strategies for each were discussed and analyzed. Finally, the main problems of the survivability technologies in current packet transmission network we should face were proposed.