[c-nsp] sup2t XL with non XL linecards

[Aled Morris]

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Aled


On 22 November 2012 16:22, Xu Hu <jstuxuhu0816 at gmail.com> wrote:

> It will run in non xl mode.
> On Nov 22, 2012 11:26 AM, ". ." <raincity23 at cosmo.com> wrote:
>
> > Hi,
> >
> > If we have a 6500 with a Sup2T XL (VS-S2T-10G-XL) that is doing BGP with
> > full
> > tables (so ~400k routes), does that mean all line cards must be XL as
> > well? The
> > FAQ here:
> >
> >
> >
> http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/qa_c67-362061.html
> >
> > seems to indicate yes:
> >
> > Q. What happens if I mix DFC4 and DFC4XL in the same chassis? Is this
> > supported?
> >
> > A. Yes, this is supported. When mixing DFC4 and DFC4XL, the system will
> > operate
> > in lower common denominator mode. This means that it will operate in PFC4
> > mode
> > to match the lesser capabilities of the DFC4. The consequences of this
> are
> > that
> > the larger FIB, ACL, and NetFlow tables of the DFC4XL will not be
> utilized
> > as
> > they will need to be programmed to match the smaller DFC4 tables for
> > consistency
> > within the chassis. See the Cisco IOS® Software Release 12.2(50)SY notes
> > for
> > further details (Put the URL).
> >
> > However, unclear if that is just with mixing linecards, or includes the
> > supervisor as well.
> >
> > The linecard will just be doing l2 switching, and any l3 that needs the
> > routes
> > will be going to the supervisor, that's fine, just don't want the
> > supervisor to
> > fall back to non XL mode.
> >
> > Thanks!
> >
> > --
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> >
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