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文章在考虑多链路失效的情况下，提出了一种新的基于备份VP共享的带宽分配策略，并分析了其在状态无关和状态相关恢复路径机制中的恢复性能和OAM（运行、维护和管理）信元格式。仿真结果表明在多链路失效的情况下，该方案具有与备份VP专用方案相同的网络恢复率，但其恢复路由平均长度较短，VPI冗余度较小，网络带宽代价比较小。
This paper proposes a new bandwidth allocation strategy based on backup VP sharing considering multi-link failure, and analyzes its recovery performance in state-independent and state-dependent recovery path mechanisms and OAM (Operation, Maintenance and Maintenance Management) cell format. The simulation results show that the proposed scheme has the same network recovery rate as the backup VP scheme in the case of multi-link failure. However, the recovery route has shorter average length, less VPI redundancy and less network bandwidth cost.