[c-nsp] Discussion with 6500/7600 Sup Modules

[David Sinn]

The Sup2 with DFC's will only support the quoted (marketing math) 256Gb 
if you have the fabric module installed.

Effectively the Sup2 and Sup32 are equivalent baring three things:

1)  The Sup2 does support the addition of the Switch Fabric Module
2)  The Sup2 has a PFC2 while the Sup32 has the PFC3B/BXL.
3)  The Sup2 has the option of the MSFC2 while the Sup32 includes a 
MSFC2

Since the Sup2 without a fabric operates in the same mode as a Sup32, 
so they both have the same throughput capability of (marketing math) 
32Gb.  The primary functional difference is the features on the PFC, so 
I would suggest looking into the PFC3B's feature set to see if that 
more aligns with what you want to accomplish.

David

On Apr 21, 2005, at 8:41 AM, Dan Lockwood wrote:

> Hi All,
>
> We are in the process of purchasing several new 6500/7600 devices for a
> network overhaul and I have a few questions about the practical
> application of the different supervisors.  For core devices we want to
> run the new SUP720, my confusion is for the access layer.  We have a
> large campus and data center that will be upgraded.  The Sup1 is old 
> and
> I wont buy that.  That leaves me with the Sup2, Sup32 and 720.
> According to Cisco the New Sup32 only supports 32Gb while the Sup2 /w
> DFC supports 256Gb.  Is this correct or am I misunderstanding 
> something?
> So the two questions I'm struggling with are 1) should I push L3
> capabilities to the access switches and 2) What supervisor/series of
> line cards (2A, 32, 720) should I consider?
>
> Any other important issues I have failed to consider?
>
> Thanks,
> Dan
>
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