When a VRRP transition takes place with the backup taking over as the master, look for the following message in the syslog on the new master, as well as the old master. This message provides information to allow you to determine the cause of the transition.
IPv6 Vrrp State Transition Trap(Port/Vlan=200, Type=masterToInitialize, Cause=shutdownReceived, VrId=20,VrIpAddr=fe80:0:0:0:0:0:0:200, Addr=fe80:0:0:0:224:7fff:fe9d:1a03)
In this message, see the Type and Cause fields.
Note
Although the possible causes and types are listed in the following table, the system does not display all of the listed causes and types in the trap/log message.
The following table describes the VRRP transition types.
Type value |
Type definition |
---|---|
1 |
None |
2 |
Master to backup |
3 |
Backup to master |
4 |
Initialize to master |
5 |
Master to initialize |
6 |
Initialize to backup |
7 |
Backup to initialize |
8 |
Backup to backup master |
9 |
Backup master to backup |
The following table describes the VRRP transition causes.
Cause value |
Cause definition |
---|---|
1 |
None |
2 |
Higher priority advertisement received |
3 |
Shutdown received |
4 |
VRRP address and physical address match |
5 |
Master down interval |
6 |
Preemption |
7 |
Critical IP goes down |
8 |
User disabling VRRP |
9 |
VRRP status synced from primary |
10 |
IPv6 interface on which VRRP is configured goes down |
11 |
Lower priority advertisement received |
12 |
Advertisement received from higher interface IP address with equal priority |
13 |
Advertisement received from lower interface IP address with equal priority |
14 |
User enabled VRRP |
15 |
Transition because of any other cause |