VRRP single backup
1. According to the networking requirements, start four switches and two PCs.
two。 Configure VLAN2 under SwitchA.
3. Create backup group 1 and configure the virtual IP address of backup group 1 to be 10.1.1.111.
4. Set the priority of SwitchA in backup group 1 to 110, which is higher than the priority of SwitchB.
5. Set SwitchA to work in preemptive mode with a preemption delay of 5 seconds.
6. Configure SwitchB (the process is similar to SwitchA).
7. Configure SwitchC.
8.HostAping is connected to HostB.
View the configuration on 9.SwitchA.