3Com Switch 4800G 24-Port Configuration Manual page 1090

1090 C 87: VRRP C
HAPTER ONFIGURATION
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.111
# Set Switch B to work in preemption mode. The preemption delay is five seconds.
[SwitchB-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5
3 Verify the configuration
After the configuration, Host B can be pinged through on Host A. You can use the
display vrrp command to verify the configuration.
# Display detailed information of standby group 1 on Switch A.
[SwitchA-Vlan-interface2] display vrrp verbose
IPv4 Standby Information:
Run Method
Virtual IP Ping : Enable
Interface
VRID
Admin Status
Config Pri
Preempt Mode
Auth Type
Virtual IP
Virtual MAC
Master IP
# Display detailed information of standby group 1 on Switch B.
[SwitchB-Vlan-interface2] display vrrp verbose
IPv4 Standby Information:
Run Method
Virtual IP Ping : Enable
Interface
VRID
Admin Status
Config Pri
Preempt Mode
Auth Type
Virtual IP
Master IP
The above information indicates that in standby group 1 Switch A is the master,
Switch B is the backup and packets sent from Host A to Host B are forwarded by
Switch A.
If Switch A fails, you can still ping through Host B on Host A. Use the display vrrp
command to view the detailed information of the standby group on Switch B.
# If Switch A fails, the detailed information of standby group 1 on Switch B is
displayed.
[SwitchB-Vlan-interface2] display vrrp verbose
IPv4 Standby Information:
Run Method
Virtual IP Ping : Enable
Interface
: VIRTUAL-MAC
: Vlan-interface2
: 1
: UP
: 110
: YES
: NONE
: 202.38.160.111
: 0000-5e00-0101
: 202.38.160.1
: VIRTUAL-MAC
: Vlan-interface2
: 1
: UP
: 100
: YES
: NONE
: 202.38.160.111
: 202.38.160.1
: VIRTUAL-MAC
: Vlan-interface2
Adver. Timer : 1
State : Master
Run Pri : 110
Delay Time : 5
Adver. Timer : 1
State : Backup
Run Pri : 100
Delay Time : 5