Re: AW: AW: VSS and PFC3A

Hi Ram,

Remember if you have 10GE cards installed it is not possible to remove
their DFC's as they come installed as standard, which leaves the upgrade
supervisor option. Note that you cannot have two supervisors in the same
chassis when switching to VSS mode (at least not at the current SXI
release). Only one supervisor in each chassis is supported, and each
must be a VS-S720-10GE-3C or VS-S720-10GE-3CXL. It is not possible to
use an older supervisor in each chassis and use 10GE cards (such as the
4, 8 or 16 port versions).
Don't forget that you also need a synchronization link between the two
chassis once cut-over - this is usually a 1GE copper link if they are
the same room - it does not carry client traffic but information such as
keep-alives and state information.

regards Andy

KRATTIGER Lukas wrote:
> Hi Ram
>
>
>
> You are correct. The DFC, CFC are on the linecards. There are also
> limitations according to the daughter cards.
>
> The only VSS compatible Supervisor is the VS-S720-10GE-3C/XL. It's a
> Sup720 with 2x 10G and PFC3c on it. All other Sups are not able to do
> VSS.
>
>
>
> I hope this helps.
>
>
>
> Cheers
>
> -Lukas
>
>
>
> Von: Ram Shummoogum [mailto:rshummoo_at_ca.ibm.com]
> Gesendet: Dienstag, 4. August 2009 16:44
> An: KRATTIGER Lukas
> Cc: ccielab_at_groupstudy.com
> Betreff: Re: AW: VSS and PFC3A
>
>
>
>
>
> Thanks for getting back so fast.
>
> When you say remove the PFC3A and replace with CFC or DFC3c/DFC3cXL: Are
> you referring to the SUP720. I thought CFC and DFC are only for
> linecards.
>
> For the line cards I am good as they are new and are DFC3C.
>
> Thanks
>
>
>
>
>
>
> "KRATTIGER Lukas" <Lukas.KRATTIGER_at_nextiraone.ch>
>
> 08/04/2009 10:38 AM
>
> To
>
> Ram Shummoogum/Quebec/IBM_at_IBMCA, <ccielab_at_groupstudy.com>
>
> cc
>
>
> Subject
>
> AW: VSS and PFC3A
>
>
>
>
>
>
>
>
> Hi Ram
>
> Just remove your PFC3A and replace it with a CFC or buy a DFC3c/DFC3cXL.
> These are your two options.
> A VSS will never work with distributed forwarding below 3c.
> Just as a side note: The linecards for your VSLs need to have a
> DFC3c/DFC3cXL on it.
>
> Cheers
> -Lukas
>
>
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Received on Tue Aug 04 2009 - 23:20:02 ART