VRRP changing from Backup->Master then changing back Master->Backup almost exactly every hour?!?

[Anonymous]

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?

1. 2013.06.23 17:44:52 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
2. 2013.06.23 18:45:16 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
3. 2013.06.23 18:45:24 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
4. 2013.06.23 19:45:42 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
5. 2013.06.23 19:45:50 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
6. 2013.06.23 20:46:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
7. 2013.06.23 20:46:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
8. 2013.06.23 21:46:49 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
9. 2013.06.23 21:46:57 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
10. 2013.06.23 22:47:15 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
11. 2013.06.23 22:47:23 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
12. 2013.06.23 23:47:40 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
13. 2013.06.23 23:47:48 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
14. 2013.06.24 00:48:57 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
15. 2013.06.24 00:49:05 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
16. 2013.06.24 01:49:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
17. 2013.06.24 01:49:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
18. 2013.06.24 02:49:48 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
19. 2013.06.24 02:49:55 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
20. 2013.06.24 03:50:13 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
21. 2013.06.24 03:50:21 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
22. 2013.06.24 04:08:06 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
23. 2013.06.24 04:08:06 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
24. 2013.06.24 04:08:54 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
25. 2013.06.24 04:08:54 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
26. 2013.06.24 04:50:53 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
27. 2013.06.24 04:51:01 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
28. 2013.06.24 05:51:20 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
29. 2013.06.24 05:51:28 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
30. 2013.06.24 06:51:47 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
31. 2013.06.24 06:51:55 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
32. 2013.06.24 07:52:28 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
33. 2013.06.24 07:52:36 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
34. 2013.06.24 08:52:55 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
35. 2013.06.24 08:52:59 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
36. 2013.06.24 09:53:23 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
37. 2013.06.24 09:53:31 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP
38. 2013.06.24 10:53:52 VRRP.eth 0/1 grp 14 changed state BACKUP->MASTER
39. 2013.06.24 10:54:01 VRRP.eth 0/1 grp 14 changed state MASTER->BACKUP

[Anonymous]

- Thank you for asking this question in the support community.  I noticed you also opened a ticket with ADTRAN Technical Support.  When you get a resolution, will you post the results on the forum so other users can benefit?

Thanks,

Noor

[Anonymous]

:

I marked this post as "assumed answered," but reply with the outcome of this post when you get a chance.

Levi

[darra268]

We are seeing the exact same problem. It would be great to actually see an answer...