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

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
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3 Replies
Anonymous
Not applicable

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

- 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
Not applicable

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

:

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

Levi

New Contributor II

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

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