Re: OT: 4506 problem

["Jeremy O'Dette" <jeremyodette@xxxxxxxxxxx>]

What do you get from a 'show vlan brief'?  Do you see all of the vlans you 
are expecting?  If you have ports assigned to a vlan that doesn't exist on 
the switch they'll be isolated.  You can confirm this with a 'show interface 
status' and see if the ports are 'inactive'.

> From experience with the 4000/4500 platform you might also check the 
supervisor card.  If you have a spare you might try swapping it out.  I ran 
into an issue at my office 2 years ago where we had 3 supervisor failures in 
less than 9 months.  In all cases IOS didn't report / log ANYTHING, traffic 
just stopped being forwarded properly.  In our case we were on a sup3/4006 
platform.  Good luck!



Jeremy O'Dette
CCIE #14973
jeremyodette@xxxxxxxxxxx





> From: James Ventre <messageboard@xxxxxxxxxxxxxxxx>
> Reply-To: James Ventre <messageboard@xxxxxxxxxxxxxxxx>
> To: roy bustos <roybustos@xxxxxxxxxxx>
> CC: ccielab@xxxxxxxxxxxxxx
> Subject: Re: OT: 4506 problem
> Date: Thu, 23 Feb 2006 11:46:30 -0500
>
> Well, a VTP problem may not be too far off since you're mixing and matching 
> versions - which isn't supported in the same domain:
>
>
> http://www.cisco.com/en/US/products/hw/switches/ps679/products_configuration_guide_chapter09186a008007d891.html#33536
>
> "VTP version 1 and VTP version 2 are not interoperable on switches in the 
> same VTP domain."
>
>
> James
>
>
>
>
>
>
> roy bustos wrote:
> > Hi Guys!
> >
> > I've got a switching problem which has been brought to me, and was 
> > wondering
> > if you guys could provide some insight...
> >
> > I've got this network with 3 switches, the hub is a 6509 and the spokes 
> > are
> > 4506s anyways, there is one 4506 that suddenly stopped working for 40
> > minutes. I've checked everything in it and even opened up a Cisco case 
> > about
> > it. Cisco and I found no problem, it wasn't a spanning tree issue or
> > anything, and I checked the logs and had nothing in it, the trunks were
> > running fine. I'm suspecting that it was a VTP issue since even nodes 
> > within
> > the switch that have static IPs were unable to contact each other, so it 
> > may
> > have lost VLAN information, but then nothing in the log points to that. 
> > The
> > 6509 runs as a VTP sever and the spokes run as VTP clients. I came from
> > environments that ran all switches in transparent mode.
> >  We are running VTP version 1 at the server and version 2 at the spokes.
> >
> > Thanks.
> >
> > Roy Bustos
> >
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