Use this procedure to enable trace messages for IPv6 VRRP.
When VRRP is enabled on two routing switches, the master-backup relationship forms with one router taking the responsibility of routing. If the master-backup relationship is not formed between the VRRP virtual routers, look for the following trace messages to ensure that the master is sending the advertisements correctly and the backup is processing them.
enable
trace level 66 3
trace ipv6 nd enable
trace ipv6 base enable all
trace ipv6 forwarding enable all
trace ipv6 rtm enable all
trace ipv6 transport enable all
tMainTask RCIP6: rcip6_vrrp.c: 5118: VRF name: GlobalRouter (VRF id 0): ipv6VrrpTic: Am Master for Vrid 200 on IfIndex 2053 Timer 1
If VRRP is enabled on the interface, this timer kicks off every second and shows the state for the VRID.
[11/18/09 15:08:20:383] tMainTask RCIP6: rcip6_vrrp.c: 5924: ipv6VrrpSendAdvertisement: for Vrid 200 on IfIndex 2053
[11/18/09 15:08:20:583] tMainTask RCIP6: rcip6_vrrp.c: 5175: VRF name: GlobalRouter (VRF id 0): ipv6VrrpTic: ipv6VrrpSendAdvertisement
The preceding trace messages show that the VRRP master is sending the advertisements correctly at the end of advertisement interval for a VRID.
tMainTask RCIP6: rcip6_vrrp.c: 5236: VRF name: GlobalRouter (VRF id 0): ipv6VrrpTic: Am Backup for VrId 200 on IfIndex 2052 Timer 1
tMainTask RCIP6: rcip6_vrrp.c: 4854: ipv6VrrpIn: Vrid 200 on IfIndex 2052
tMainTask RCIP6: rcip6_vrrp.c: 5545: VRF name: GlobalRouter (VRF id 0): rcIpVrrpProcessAdvt: Am backup for Vrid 200 on IfIndex 2052
The preceding trace messages show that the backup router is receiving the advertisements sent by the master and correctly processing them.