Network requirements – H3C Technologies H3C SecBlade LB Cards User Manual
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# If interface GigabitEthernet 0/1 on LB A is not available, the detailed information about VRRP
group 1 on LB A is displayed.
[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 : Backup
Config Pri : 110 Running Pri : 80
Preempt Mode : Yes Delay Time : 5
Become Master : 4200ms left
Auth Type : Simple Key : ******
Virtual IP : 202.38.160.111
Master IP : 202.38.160.2
VRRP Track Information:
Track Interface: GE0/1 State : Down Pri Reduced : 30
# If interface GigabitEthernet 0/1 on LB A is not available, the detailed information about VRRP
group 1 on LB B is displayed.
[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 : Master
Config Pri : 100 Running Pri : 100
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : ******
Virtual IP : 202.38.160.111
Virtual MAC : 0000-5e00-0101
Master IP : 202.38.160.2
The output shows that if interface GigabitEthernet 0/1 on LB A is not available, the priority of LB
A is reduced to 80 and it becomes the backup. LB B becomes the master and packets sent from
Host A to Host B are forwarded by LB B.
Multiple VRRP groups configuration example in the Web
interface
In this example, Device A is the LB product.
Network requirements
As shown in
, 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.
Use VRRP groups to implement load balancing and mutual backup between default gateways.