关于光传输SPN网络跨IGP域逃生路径的应用研究

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中图分类号：TN915.06；TN929.11 文献标识码：A文章编号：2096-4706（2025）16-0015-05

Research on the Application of Cross-IGP Domain Escape Path in Optical Transmission SPN Network

CAI Yanliu （Yichun Branch of China Mobile Communications Group Jiangxi Co.，Ltd.， Yichun 336099，China）

Abstract：Aimingatthe problemthatmulti-pointfberbreakageis diffcult tobeeffctivelyprotected duringtheoperation ofoptical transmissionnetwork SPN，asolutionbasedoncrossIGPdomainesapepathisproposed.Thescheme introduces thecontrol plane，deploys the SR-TPtunel main andbackupprotectiongroup，andcombines dynamicrerouting and escape pathtechnology.The experimentalresults showthatthe SPNescape routecanrealizethe service self-healing of multiple fault scenarios insomeextremescenariosandachievegoodresults.Itefectivelymakesupforthesystematicdefectsofthetraditional SDH/PTN static protection mode and improves the reliability and flexibility of the network.

Keywords： cross-IGP domain; escape path; centralized control plane

0 引言

SPN网络在运行过程中经常发生断纤事件，据统计，一个典型地市网络由于市政施工，网络改造，自然灾害等原因导致的断纤故障多达上千次[1-]。（剩余5540字）