[c-nsp] sup2t XL with non XL linecards

[Xu Hu]

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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