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

[Robert Hayden]

We struggled with this on the campus and decided to put 3BXLs in every 
location with 6500s (about 34 or so) in order to keep things consistent. 
   In that process, we also moved the routed interface for customers 
farther out on the network to the appropriate 6500 aggregator pair, 
while at the same time doing significat (and ongoing) work to limit and 
eliminate "cross-campus" VLANs that touch multiple locations.

If you can afford it, I'd recommend 720s everywhere,

It will also allow you to use the 67xx line of cards for 10GB and 
10/100/1000 full-rate cards.

Robert Hayden
University of Wisconsin

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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