I have now encountered my third Adtran unit configured with VRRP which changes states every hour (almost exactly!). The most recent is a 908 running ADTRAN, Inc. OS version R10.5.0.E. I have seen this happen on a 3430 and a 1638! Very different units with the same symptoms. I can’t remember if they were all running the same version of firmware. They have been 3 completely different network situations. The first I encountered was between 2 1638s within our office (pre virtual chassis). The second was between a 4430 and a 3430 which communicated through a 1534 switch. Both of these were "solved" by removing the VRRP configuration. This last one was encountered last night. Partial logs below.
Has anyone seen this and what was the fix?
- 2013.06.23 17:44:52 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 18:45:16 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 18:45:24 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 19:45:42 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 19:45:50 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 20:46:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 20:46:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 21:46:49 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 21:46:57 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 22:47:15 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 22:47:23 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.23 23:47:40 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.23 23:47:48 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 00:48:57 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 00:49:05 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 01:49:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 01:49:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 02:49:48 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 02:49:55 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 03:50:13 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 03:50:21 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 04:08:06 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 04:08:06 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 04:08:54 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 04:08:54 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 04:50:53 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 04:51:01 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 05:51:20 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 05:51:28 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 06:51:47 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 06:51:55 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 07:52:28 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 07:52:36 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 08:52:55 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 08:52:59 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 09:53:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 09:53:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
- 2013.06.24 10:53:52 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
- 2013.06.24 10:54:01 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP