H3C Technologies H3C SecPath F1000-E - Manual (Page 30)

29
If interface GigabitEthernet 0/1 through which Device A connects to the Internet is not available, you can
still successfully ping Host B on Host A. To view the detailed information of the VRRP group, use the
display vrrp verbose command.
# If interface GigabitEthernet 0/1 on Device A is not available, the detailed information of VRRP group
1 on Device A is displayed.
[DeviceA-GigabitEthernet0/1] display vrrp verbose
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface GigabitEthernet0/2
VRID : 1 Adver Timer : 5
Admin Status : Up State : Backup
Config Pri : 110 Running Pri : 80
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : hello
Virtual IP : 202.38.160.111
Master IP : 202.38.160.2
VRRP Track Information:
Track Interface: GE0/1 State : Down Pri Reduced : 30
# If interface GigabitEthernet 0/1 on Device A is not available, the detailed information of VRRP group
1 on Device B is displayed.
[DeviceB-GigabitEthernet0/2] display vrrp verbose
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface GigabitEthernet0/2
VRID : 1 Adver Timer : 5
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 above information indicates that if interface GigabitEthernet 0/1 on Device A is not available, the
priority of Device A is reduced to 80 and it becomes the backup. Device B becomes the master and
packets sent from Host A to Host B are forwarded by Device 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.
• Load sharing and mutual backup between default gateways can be implemented by using VRRP
groups.