[nsp] Colo DC setup

[matthew zeier]

How much bandwidth are you pushing/pulling and how much can those switches
really do?

I'm jaded - these 6500s are great but management doesn't like the wiring
issues for each row of cabinets and is thinking of using smaller switches
per row to make the wiring just two fiber runs.


----- Original Message ----- 
From: <jlewis at lewis.org>
To: "Terry Baranski" <tbaranski at mail.com>
Cc: <cisco-nsp at puck.nether.net>
Sent: Tuesday, December 09, 2003 8:59 AM
Subject: RE: [nsp] Colo DC setup


> On Mon, 8 Dec 2003, Terry Baranski wrote:
>
> > So with that in mind, you may want to consider going with 3550s instead
> > of 2950s.  A 3550 gives you full ACL/VACL functionality with the option
> > of turning on layer-3 switching if it becomes desirable down the road.
> > Much more flexible and scalable.
>
> This is what I chose for our data center / colo facility.  We've got
> 7500's as the 2 main routers (one's a 7206vxr, but it's about to be
> replaced with a 7507) doing HSRP, each with their own switch...then
> numerous aggregation 3550's each connecting back to both of the "router
> switches".  We run most of the 3550 ports in layer-3 mode (no switchport,
> ip address blah) and let them propogate routing info back to the routers
> via OSPF.  Where necessary, we run 3550 ports in switchport mode and setup
> VLANs going back to subinterfaces on the routers.
>
> One of the features that made us pick the 3550 was per-port traffic
> policing...so when customers get infected with sql slammer or similar
> junk, they can't melt the network.
>
> ----------------------------------------------------------------------
>  Jon Lewis *jlewis at lewis.org*|  I route
>  Senior Network Engineer     |  therefore you are
>  Atlantic Net                |
> _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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