双机热备(RBM)技术白皮书-6W100-整本手册.pdf

李华

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2022-06-26

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双机热备（RBM）技术白皮书

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1 概述 ·························································································································································· 1

1.1 产生背景 ··············································································································································· 1

1.2 技术优点 ··············································································································································· 2

2 技术实现 ·················································································································································· 2

2.1 概念介绍 ··············································································································································· 2

2.2 双机热备的组建 ···································································································································· 3

2.2.1 RBM 报文 ··································································································································· 3

2.2.2 RBM 通道 ··································································································································· 3

2.2.3 设备角色 ···································································································································· 3

2.2.4 建立过程 ···································································································································· 5

2.3 双机热备工作模式 ································································································································ 6

2.4 双机热备备份配置信息 ························································································································· 7

2.4.1 触发批量备份配置信息 ·············································································································· 8

2.4.2 配置信息一致性检查 ·················································································································· 8

2.5 双机热备备份业务表项 ························································································································· 8

2.6 双机热备状态切换 ································································································································ 8

2.6.1 触发事件 ···································································································································· 9

2.6.2 监控机制 ·································································································································· 10

2.6.3 切换过程 ·································································································································· 10

2.7 双机热备部署方式 ······························································································································ 12

2.7.1 三层主备直路部署 ···················································································································· 12

2.7.2 三层双主直路部署 ···················································································································· 13

2.7.3 透明主备直路部署 ···················································································································· 15

2.7.4 透明双主直路部署 ···················································································································· 17

2.8 双机热备流量引导 ······························································································································ 18

2.8.1 双机热备+VRRP ······················································································································ 18

2.8.2 双机热备+静态路由 ·················································································································· 20

2.8.3 双机热备+动态路由 ·················································································································· 21

2.8.4 双机热备+VLAN ······················································································································· 22

2.8.5 非对称流量业务 ······················································································································· 23

2.9 双机热备流量回切 ······························································································································ 24

2.10 双机热备与其它功能配合 ················································································································· 25

2.10.1 双机热备支持 NAT ················································································································· 25

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