1-20
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 2
Interface Vlan-interface2
VRID : 1 Adver Timer : 1
Admin Status : Up State : Backup
Config Pri : 100 Running Pri : 100
Preempt Mode : Yes Delay Time : 0
Auth Type : None
Virtual IP : 202.38.160.100
Master IP : 202.38.160.1
Interface Vlan-interface3
VRID : 2 Adver Timer : 1
Admin Status : Up State : Master
Config Pri : 110 Running Pri : 110
Preempt Mode : Yes Delay Time : 0
Auth Type : None
Virtual IP : 202.38.160.200
Virtual MAC : 0000-5e00-0102
Master IP : 202.38.160.131
The above information indicates that in VRRP group 1 Switch A is the master, Switch B is the backup
and hosts with the default gateway of 202.38.160.100/25 accesses the Internet through Switch A; in
VRRP group 2 Switch A is the backup, Switch B is the master and hosts with the default gateway of
202.38.160.200/25 accesses the Internet through Switch B.
Troubleshooting VRRP
Symptom 1:
The console screen displays error prompts frequently.
Analysis:
This error is probably caused by the following:
z
Inconsistent configuration of the devices in the VRRP group.
z
A device is attempting to send illegitimate VRRP packets.
Solution:
z
In the first case, modify the configuration.
z
In the latter case, you have to resort to non-technical measures.
Symptom 2:
Multiple masters are present in the same VRRP group.
Analysis:
z
Multiple masters coexist for a short period: This is normal and requires no manual intervention.
z
Multiple masters coexist for a long period: This is because devices in the VRRP group cannot
receive VRRP packets, or the received VRRP packets are illegal.
Solution:
