6500 VTP VLANS Disappear while in transparent mode

Unanswered Question

Hey all,

I just ran across an issue I have never seen before. We have a switch configured with about 250 VLANs and SVIs. The switch is configured in VTP transparent mode. Everything has been working fine until this morning we added a couple more vlans. After that we noticed that all but about 80 of the VLANs in the VTP database were missing. Somehow they got erased. No one was in the device since this happened and its configured in trans mode. Any ideas what could have happened? We put the VLANs back in and everything came up fine for now.

Anyone ever heard of something like this happening? Is there a max number of L3 interfaces for 6500?

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
aghaznavi Thu, 02/19/2009 - 09:39
User Badges:
  • Silver, 250 points or more

To remedy the situation, perform this procedure:

If the links are down for ports because they are assigned to VLANs that no longer exist, put the switch(es) into VTP transparent state and manually configure the VLANs.


Leo Laohoo Thu, 02/19/2009 - 14:22
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Should support more than that, Mike. Saw your post at "puck" and I'm curious to know what is your IOS version.

I managed >30 6500 (Sup32 and Sup720 running SXF11) and all are Transparent and I'm yet to see this bug show itself.

Interesting indeed!


This Discussion