【摘 要】
：
引言传统的SDH网络具有良好的网络保护性能,它采用的信令方式,使其保护切换时间严格小于50ms。IPRAN网络是基于自动寻址、控制层面非连接、数据层面包转发的网络。虽然技术有
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引言传统的SDH网络具有良好的网络保护性能,它采用的信令方式,使其保护切换时间严格小于50ms。IPRAN网络是基于自动寻址、控制层面非连接、数据层面包转发的网络。虽然技术有所不同,但是IPRAN网络可以做到类SDH的运维。1.IP RAN保护机制分类网内保护之一:隧道LSP1:1保护(主要应用于联通),同时建立LSP主、备隧道;网内保护之二:ECMP保护(主要应用于电信),采用
Introduction The traditional SDH network has a good network protection performance, which uses the signaling method to make its protection switching time strictly less than 50ms. IPRAN network is based on automatic addressing, control plane non-connection, data-level packet forwarding network. Although the technology is different, but IPRAN network can do SDH operation and maintenance. 1. IP RAN protection mechanism Category one of the network protection: Tunnel LSP1: 1 protection (mainly used in China Unicom), while establishing LSP primary and secondary tunnels; Intranet protection two: ECMP protection (mainly used in telecommunications), using
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