Risks Associated With Enabling Trace Messages - Avaya 8800 Troubleshooting Manual

On the master router, look for the following RCIP6 trace messages.
• 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 above trace messages show that the VRRP Master is sending the advertisements
correctly at the end of advertisement interval for a VRID.
On the backup router, look for the following RCIP6 trace messages.
• 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 above trace messages show that the backup router is receiving the advertisements sent
by the master and correctly processing them.

Risks associated with enabling trace messages

When traces are enabled on VRRP master, VrrpTic messages are logged for every second
and any other configured traces keep displaying, so there is no guarantee that the backup will
receive the advertisement from the master within 3 seconds, so it can transit to Master also.
There is also risk of toggling of VRRP states (from backup to master and back again).
Enable the limited traces based on whichever is required.
Troubleshooting
Troubleshooting IPv6 VRRP
July 2013 447