[c-nsp] 6500 VTP and VLANs disappearing

[Jack]

Hi Chris,

Did you check the VTP version ? I have a incident before but it was due to 
the VTP version 1 and 2 , new IOS loaded to my Cat6 but some how the VTP 
automatically became version 1, therefore most of my access layer cant 
communicate to the Core layer.

it is no harm to check vtp version as well .

Regards,
Jack

--------------------------------------------------
From: "Chris Phillips" <cphillips at wbsconnect.com>
Sent: Saturday, 14 February, 2009 6:54 AM
To: "Mike Louis" <MLouis at nwnit.com>
Cc: <cisco-nsp at puck.nether.net>
Subject: Re: [c-nsp] 6500 VTP and VLANs disappearing

> Mike,
>
> I've had this happen twice.  Both times we were running VTP transparent, 
> both times on 6509s with SUP720-3BXL and both times on 12.2.18-SXF*. We've 
> not had this happen again since moving to 12.2.33-SXI.
>
> Mike Louis wrote:
>> 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?
>>
>>
>> Mike Louis
>> Senior Solutions Architect
>> CCIE  #17082 (R&S)
>> NWN, Inc
>> mobile:336.253.5247
>> mlouis at nwnit.com
>>
>>
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> -- 
> Chris Phillips
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