From: Monica Belluci (mpls1979@gmail.com)
Date: Wed Mar 11 2009 - 08:31:47 ARST
Hi Dale
Thanks for your quick reply.
If I I implemented VSS with single Sup720 in each core switch and suppose
One sup720 module fails what will be the status of line cards belonging to
failed core switch Sup720 ?
All line cards will work with single Sup720 of Active Switch or Whole
Chassis will be down ?
I tried to use dynamic configurator and it still allows me to select two
Sup720 3c modules for single chassis with 12.2(33)SXI) .
Thanks
Monica
On Wed, Mar 11, 2009 at 11:51 AM, Dale Shaw <dale.shaw@gmail.com> wrote:
> Hi Monica, I loved your work in The Matrix Reloaded.
>
> On Wed, Mar 11, 2009 at 7:23 PM, Monica Belluci <mpls1979@gmail.com>
> wrote:
> > Dear All,
> >
> > Can I use two Sup720 3c modules in One chassis (Chassis A) and two
> Sup720
> > 3c modules in One chassis (Chassis B) to implement VSS 1440 between them
> .
> > Do VSS support Two Sup720 in One chassi and Two Sup720 in other chassi?
> > Can i use Sup720 3C failover in single chassis as I have two Sup720 in
> > single chassis?
> >
> > Any Practical update is appereciable.
>
> Unless something has changed, VSS only supports a single supervisor
> engine per chassis. This was a limitation Cisco were looking at
> lifting in subsequent releases.
>
> The latest ("12.2(33)SXH and later") config guide still talks about 2
> chassis and 2 supervisor engines being the max. There is also this
> statement..
>
> "The virtual switching system does not support supervisor engine
> redundancy within a chassis."
>
> ..which seems pretty definitive.
>
> Essentially the supervisor engines in each chassis form an
> active/standby relationship similar to the way two supervisor engines
> in a single chassis do.
>
> cheers,
> Dale
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