以太网线性保护倒换技术要求.pdf

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1、ICS01.040.33M04YD中华人民共和国通信行业标准YD/T××××—××××/ITU-TG.8031/Y.1342：2009以太网线性保护倒换Ethernetlinearprotectionswitching(ITU-TG.8031/Y.1342：2009，IDT)（报批稿）××××-××-××发布××××-××-××实施中华人民共和国工业和信息化部发布YD/T××××—20××目次前言............................................................

2、.......III1范围.......................................................................12规范性引用文件.............................................................13术语、定义及缩略语.........................................................13.1术语和定义.............................

3、................................13.2缩略语.................................................................64简介.......................................................................75网络目标...................................................................86保护特性..

4、.................................................................86.1监测方式和条件.........................................................87保护组命令.................................................................97.1端到端命令和状态...........................................

5、............97.2本地命令..............................................................108保护结构..................................................................108.1概述....................................................................108.2单向和双向倒换..................

6、........................................108.3对APS通信的需求........................................................108.4返回式/非返回式倒换.....................................................118.5配置不匹配..............................................................118.6保护倒换触

7、发............................................................118.7保护倒换模型............................................................129APS协议..................................................................169.1APS格式............................................

8、...................169.21段APS协议...........................................................189.3请求类型..............................................................219.4保护类型..........