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[S2]int vlan 10
[S2-Vlan-interface10]vrrp vrid 10 virtual-ip 172.16.10.254 配置VIP地址
[S2-Vlan-interface10]vrrp vrid 10 priority 110 修改优先级,默认为100
[S2-Vlan-interface10]vrrp vrid 10 preempt-mode delay 3 延迟10s后抢占
[S2-Vlan-interface10]vrrp vrid 10 timer advertise 10 10s通告一次
[S2-Vlan-interface10]vrrp vrid 10 track 4 priority reduced 20
[S2]track 4 interface g1/0/1 监视上行的端口 (注意输入命令的模式)
解释:当监视的链路down之后,优先级降低20
真机上一般使用下面命令:
[S2-Vlan-interface13]vrrp vrid 1 track interface E1/0/1 reduced 20
使用BFD监视上行链路:
[S2]bfd echo-source-ip 8.8.8.8 //地址任意
[S2]track 11 bfd echo interface e1/0/1 remote ip 23.1.1.3 local ip 23.1.1.2
注意:23.1.1.3为上游IP,23.1.1.2为自己与上游接口的IP地址
[S2-Vlan-interface11]vrrp vrid 11 track 11 reduced 20
[S2-Ethernet1/0/1]bfd min-receive-interval 500
[S2-Ethernet1/0/1]bfd min-transmit-interval 500
[S2-Ethernet1/0/1]bfd detect-multiplier 6
监控内网线路,实现主备的快速切换:
[S2]bfd echo-source-ip 8.8.8.8 //地址任意
[S2]track 10 bfd echo interface Vlan-interface 10 remote ip 172.16.10.252 local ip 172.16.10.253
注意:vlan 10 为内网vlan ,172.16.10.252是自己给内网提供的网关地址,172.16.10.253为对端提供的网关地址
[S2-Vlan-interface10]vrrp vrid 10 track 10 switchover
//若探测到S1不可达,S2立即切换为Master
//若不执行以上操作,则等待3个通告周期后切换。
查看VRRP配置:
<S1>dis vrrp verbose