H3C Technologies H3C S12500-X Series Switches - Manual (Page 88)

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# Configure the master to send VRRP packets at an interval of 500 centiseconds.
[SwitchB-Vlan-interface2] vrrp vrid 1 timer advertise 500
# Configure Switch B to operate in preemptive mode, and set the preemption delay to 5 seconds.
[SwitchB-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5
Verifying the configuration
After configuration, ping Host B on Host A, and you can see that Host B is reachable. Use the display
vrrp command to view the configuration result.
# Display detailed information about VRRP group 1 on Switch A.
[SwitchA-Vlan-interface2] display vrrp verbose
IPv4 Virtual Router Information:
Running Mode : Standard
Total number of virtual routers : 1
Interface Vlan-interface2
VRID : 1 Adver Timer : 500
Admin Status : Up State : Master
Config Pri : 110 Running Pri : 110
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : ******
Virtual IP : 10.1.1.10
Virtual MAC : 0000-5e00-0101
Master IP : 10.1.1.1
VRRP Track Information:
Track Object : 1 State : Positive Pri Reduced : 30
# Display detailed information about VRRP group 1 on Switch B.
[SwitchB-Vlan-interface2] display vrrp verbose
IPv4 Virtual Router Information:
Running Mode : Standard
Total number of virtual routers : 1
Interface Vlan-interface2
VRID : 1 Adver Timer : 500
Admin Status : Up State : Backup
Config Pri : 100 Running Pri : 100
Preempt Mode : Yes Delay Time : 5
Become Master : 2200ms left
Auth Type : Simple Key : ******
Virtual IP : 10.1.1.10
Master IP : 10.1.1.1
The output shows that in VRRP group 1, Switch A is the master, and Switch B is a backup. Packets from
Host A to Host B are forwarded through Switch A.
When a fault is on the link between Switch A and Switch C, you can still successfully ping Host B on Host
A. Use the display vrrp command to view information about VRRP group 1.
# Display detailed information about VRRP group 1 on Switch A when a fault is on the link between
Switch A and Switch C.
IPv4 Virtual Router Information:
Running Mode : Standard