基于链路聚合的以太环保护倒换的设计与实现  

Design and implementation of Ethernet ring protection switching based on link aggregation

作　　者：张洁 罗志成 李明春[2] ZHANG Jie;LUO Zhicheng;LI Mingchun(WuHan Research Institute of Post and Telecommunications,Wuhan 430074,China;Fiberhome Telecommunication Technologies Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]烽火通信科技股份有限公司,湖北武汉430074

出　　处：《电子设计工程》2021年第14期11-14,19,共5页Electronic Design Engineering

摘　　要：为了解决接入网带宽不足和网络可靠性差的问题,文中设计以太网链路聚合并与以太环保护倒换(ERPS)协议相结合,以太网链路聚合增加了网络带宽,ERPS为网络提供了冗余保护,提高了网络的可靠性。文中首先介绍了以太网链路聚合和ERPS协议的工作原理,详细描述了在光线路终端(OLT)设备上的设计方案,通过设计拓扑图,模拟场景进行测试。测试结果表明,基于以太网链路聚合设计实现的环网保护倒换传输数据能力强,收敛速度快,倒换时间可达到电信级可靠性,即不超过50 ms。In order to solve the problem of insufficient access network bandwidth and poor network reliability,the article designs the combination of Ethernet link aggregation and Ethernet Ring Protection Switching(ERPS)protocol.Ethernet link aggregation increases network bandwidth and ERPS provides redundancy protection for the network and improves the reliability of the network.The article first introduces the working principle,Then describes the design scheme on Optical Line Terminal(OLT)in detail,and finally simulates scenarios for testing by designing the network topology.The result shows that the ring network protection switching based on the link aggregation has strong data transmission capability,fast convergence speed,and the time can reach the carrier⁃class reliability,that is,no more than 50 ms.

关 键 词：链路聚合 以太环保护倒换 电信级可靠性 光线路终端 

分 类 号：TN915[电子电信—通信与信息系统]