Multi-constraint path protection in SRLG network based on dominated path

作者：Liu Yang^*; Zheng Zheng; Liu Xing Chun

来源：Journal of Optoelectronics - Laser, 2010, 21(SUPPL.): 137-139.

• Backup path
• Dominated path
• Elastic depth
• Multi-constraints
• Multiple constraint
• Network-based
• Optical networks
• Path protection
• Restoration paths
• Simulation result
• SRLG

The path protection in the optical networks with SRLG is investigated under multiple constraints. The key challenge of providing ample feasible candidates are addressed by a modified dominated path relaxation. The loops in the new extended sub-paths is explored with an elastic depth, and additive criteria derived from hops and the probability of SRLG failure are used to obtain more accurate identification of feasible paths. During the searching of backup paths, the update in the path list of inter-media nodes gives priority to the end-to-end disjoint backup paths and assigns the rest space to the local backups. Simulation results demonstrate that the superiority in restoration path-finding capability leads to a significant enhancement in the success rate of the path protection.

• 出版日期2010
• 单位北京大学