[c-nsp] IPv6 BGP on 7200

[lee.e.rian at census.gov]

> Something ancient but very proven, 5.5(13).

You could be running into a bug with the color blocking logic  (show cbl
mod/port).  We had the same type of problem years ago with 5.5(something) -
spanning tree says forwarding, rsm vlan interface says up but the packets
are black-holed.   Although my recollection is that the problem seemed to
only happen after lots of access layer switches rebooted at the same time..
We were running 5.5(18) for a long time without any of those problems, so
you might want to try upgrading to a later version of 5.5

Regards,
Lee


Gert Doering <gert at greenie.muc.de> wrote on 02/28/2007 09:30:24 AM:

> Hi,
>
> On Wed, Feb 28, 2007 at 08:09:15AM -0600, Church, Chuck wrote:
> > Is it possible you're bumping up against a limit of the switch, such as
> > total number of VLANs defined, or Spanning tree instances?
>
> Assumed that at first, but even after removing 4 unused VLANs, no change
> in behaviour.  (I've searched for about a *week* for "normal" issues,
> like "too many VLANs", "spanning-tree doing weird things", "VLAN not
> configured on all trunks involved", etc.)
>
> Especially given the fact that it *works* with a RSFC in the very same
> cat5k and *does not* work with a RSM in the same switch leads me to the
> conclusion "the switches involved are not to blame".
>
> > What CatOS is running on the Sup?
>
> Something ancient but very proven, 5.5(13).
>
> > Anything useful showing up in the Sup logging buffer?
>
> No.  (When removing the VLAN on the RSM side, the Sup side will display
> "removing from trunk" messages, but otherwise, everything seems to be
> "as ever")
>
>
> The thing that I really want to know is "why is 'show trunk' displaying
> the VLAN in question as 'not active'"...
>
> (debug c5ipc on the RSM side didn't yield any interesting news either)
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>
//www.muc.de/~gert/
> Gert Doering - Munich, Germany
gert at greenie.muc.de
> fax: +49-89-35655025
gert at net.informatik.tu-muenchen.de
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