3com S7906E Installationsanweisungen

 

1-53 

The above information indicates that if Switch A fails, Switch B becomes the master, Switch C becomes 

the AVF among the VFs corresponding to the virtual MAC address 000f-e2ff-4011, and packets sent 

from Host A to the external network are forwarded by Switch C. 

The 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. 

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: 

Ping between these masters, and do the following: 

z 

If the ping fails, check network connectivity.  

z 

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. 

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.