H3C Technologies H3C SecBlade LB Cards - Manual (Page 47)

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[LBB-GigabitEthernet0/2] vrrp vrid 1 authentication-mode simple hello
# Configure the master to send VRRP packets every four seconds.
[LBB-GigabitEthernet0/2] vrrp vrid 1 timer advertise 4
# Configure LB B to operate in preemptive mode, so that LB B can become the master after the
priority of LB A decreases to a value lower than 100. Configure the preemption delay as five
seconds to avoid frequent status switchover.
[LBB-GigabitEthernet0/2] vrrp vrid 1 preempt-mode timer delay 5
3. Verify the configuration:
After the configuration, Host B can be pinged successfully on Host A. To verify your configuration,
use the display vrrp verbose command.
# Display the detailed information about VRRP group 1 on LB A.
[LBA-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 : 4
Admin Status : Up State : Master
Config Pri : 110 Running Pri : 110
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : ******
Virtual IP : 202.38.160.111
Virtual MAC : 0000-5e00-0101
Master IP : 202.38.160.1
VRRP Track Information:
Track Interface: GE0/1 State : Up Pri Reduced : 30
# Display the detailed information about VRRP group 1 on LB B.
[LBB-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 : 4
Admin Status : Up State : Backup
Config Pri : 100 Running Pri : 100
Preempt Mode : Yes Delay Time : 5
Become Master : 4200ms left
Auth Type : Simple Key : ******
Virtual IP : 202.38.160.111
Master IP : 202.38.160.1
The output shows that in VRRP group 1 LB A is the master, LB B is the backup and packets sent from
Host A to host B are forwarded by LB A.
If interface GigabitEthernet 0/1 through which LB 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.