Sub-Layer Selection Algorithm Based on Immune Optimization for Multi-Topology Routing Under Invulnerability Network

Considering the situation that the faults couldn't be recovered efficiently in the existing multi-topology routing(MTR),a sub-layer selection algorithm for multitopology routing is proposed based on the matching principle of the immune mechanism.Aiming at guaranteeing communication services furthest,the matching between multifaults and sub-layer could be viewed as the combination between the anti-trope and the antigen,which makes the sub-layer and the fault can be most similar in a certain range.And then the optimum solution of the process is found by the artificial immune algorithm,the network survivability is enhanced.The experimental result shows that the new algorithm markedly improved the recovery ability of the network under the multifaults condition.