VRRP

华为的VRRP，思科的HSRP

主路由器配置

[Huawei-Vlanif30]ip add 192.168.30.1 24  //vlan 30配置IP

[Huawei-Vlanif30]vrrp vrid 3 virtual-ip 192.168.30.254  //vrrp组号为3的虚拟IP是254

[Huawei-Vlanif30]vrrp vrid 3 priority 200  //主路由器的优先级为200，默认优先级为100

[Huawei-Vlanif30]vrrp vrid 3 preempt-mode timer delay 5  //抢占时间为5s

[Huawei-Vlanif30]vrrp vrid 3 track interface GigabitEthernet 0/0/1 reduced 100  //追踪上联口GigabitEthernet 0/0/1，如果down，优先级减100

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备路由器配置

[Huawei-Vlanif30]ip add 192.168.30.2 24  //vlan 30配置IP

[Huawei-Vlanif30]vrrp vrid 3 virtual-ip 192.168.30.254  //vrrp组号为3的虚拟IP是254