A Mixed Shared and Multi Paths Protection Scheme with SRLG Constraints
Zong-Li Tang, Xingming Li · 2007
The dynamic traffic assignment problem in WDM mesh network and traps avoidance problem under shared risk link group (SRLG) constraints were studied. A protection scheme entitled mixed shared multi-paths protection (MSMPP) was proposed. MSMPP can not only effectively avoid traps, but also, differing from previous shared path protection (SPP) scheme, make the primary path, when it doesn't work, share its bandwidth with the backup paths, so that the network bandwidth utilization is enhanced. Simulation results show that the performance of MSMPP is better than SPP.