PTN设备以太网线性1∶1保护的设计与实现

摘要

以太网线性保护是PTN网络满足运营商级需求的一个重要特性.为保证业务在PTN网络设备之间传输时具有可靠的传输通道以及故障链路的自愈能力,讨论基于G.8031协议的线性1∶1保护倒换机制,实现主备链路满足电信级50 ms以内的快速自动保换倒换功能,提高了PTN网络的可靠性.%Ethernet linear protection is a significant characteristic of the PTN network to meet the needs of the operator level.In order to guarantee the transmission of service in the PTN network equipment with reliable transmission channel and self-healing ability to recover the faulty link, this paper discussed a linear 1∶1 protection switching mechanism based on G.8031 protocol, realized the fast automatic protection switching function of the main and standby link within 50 ms of the telecommunication level, and improved the reliability of PTN network.