H3C Technologies H3C SR8800 - Manual (Page 109)

100
Forwarder 03
State : Listening
Virtual MAC : 000f-e2ff-4013 (Learnt)
Owner ID : 0000-5e01-1105
Priority : 127
Active : FE80::3
Forwarder Weight Track Information:
Track Object : 1 State : Positive Weight Reduced : 250
The output shows that when Router A fails, Router B becomes the master because its priority is
higher than that of Router C.
Troubleshooting VRRP
Symptom 1:
The screen frequently displays error prompts.
Analysis:
This error is probably caused by:
• Inconsistent configuration of the devices in the VRRP group.
• A device is attempting to send illegitimate VRRP packets.
Solution:
• In the first case, modify the configuration.
• In the latter case, resort to non-technical measures.
Symptom 2:
Multiple masters are present in the same VRRP group.
Analysis:
• Multiple masters coexist for a short period: This is normal and requires no manual intervention.
• 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:
Ping between these masters, and do the following:
• If the ping fails, check network connectivity.
• If the ping succeeds, check that their configurations are consistent in terms of number of virtual IP
addresses, virtual IP addresses, advertisement interval, and authentication.
Symptom 3:
Frequent VRRP state transition.
Analysis:
The VRRP advertisement interval is set too short.
Solution:
Increase the interval to sent VRRP advertisement or introduce a preemption delay.