R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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If interface GigabitEthernet 1/0/1 through which Router A connects to the Internet is not
available, you can still successfully ping Host B on Host A. To view the detailed information
about the VRRP group, use the display vrrp verbose command.
# If interface GigabitEthernet 1/0/1 on Router A is not available, the detailed information about
VRRP group 1 on Router A is displayed.
[RouterA-GigabitEthernet1/0/1] display vrrp verbose
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface GigabitEthernet1/0/2
VRID : 1 Adver Timer : 4
Admin Status : Up State : Backup
Config Pri : 110 Running Pri : 80
Preempt Mode : Yes Delay Time : 5
Become Master : 4200ms left
Auth Type : Simple Key : hello
Virtual IP : 202.38.160.111
Master IP : 202.38.160.2
VRRP Track Information:
Track Interface: GE1/0/1 State : Down Pri Reduced : 30
# If interface GigabitEthernet 1/0/1 on Router A is not available, the detailed information about
VRRP group 1 on Router B is displayed.
[RouterB] display vrrp verbose
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface GigabitEthernet1/0/2
VRID : 1 Adver Timer : 4
Admin Status : Up State : Master
Config Pri : 100 Running Pri : 100
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : hello
Virtual IP : 202.38.160.111
Virtual MAC : 0000-5e00-0101
Master IP : 202.38.160.2
The output shows that if interface GigabitEthernet 1/0/1 on Router A is not available, the
priority of Router A is reduced to 80 and it becomes the backup. Router B becomes the master
and packets sent from Host A to Host B are forwarded by Router B.
Multiple VRRP groups configuration example
Network requirements
 In the segment 202.38.160.0/24, some hosts use 202.38.160.111/24 as their default
gateway and some hosts use 202.38.160.112/24 as their default gateway.