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As a promising approach to improve network reliability,proactive failure recovery (PFR) re-routes failure affected traffic to backup paths without waiting for the completion of IP routing convergence.However,the failure affected traffic may cause congestion if it is not carefully allocated over the backup paths according to their available capacity.A post failure traffic engineering (PostTE) scheme is proposed to balance the load in the PFR scheme.Loop-free backup paths are prepared in advance to cover all ... 相似文献
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