VRRP Transitions

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 all of the possible causes and types are listed below, not all of the listed causes and types appear in the trap/log message.

The following table describes the VRRP transition types.

Table 1. Transition type
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.

Table 2. Transition cause
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