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New Member

Subneting Campus: When proceed?

Actually I´m the networking manager in a switched campus with a 6509 in distribution layer and 3548 or 3524 in access layer. We´re considering subnet in order improve the networking perfomance. The applications are totally client/server (mail, AS400, etc. ) and those are located in a "farm"and support 500 users.

The 6500 already has the routing module. But, how can I evaluate the subneting convenience? Broadcast vs Routing process ?

The enviroment is NT and proximely will migrate to W2000.

Thanks for your participation.

2 REPLIES
Cisco Employee

Re: Subneting Campus: When proceed?

If by "routing module" you mean the MSFC on the 6500, then Broadcast vs routing process is not an issue. The Sup/MSFC combo does at least 15Mpps unicast IP routing with full QoS & ACL configurations supported, so there is no performance penalty for crossing a layer 3 boundary.

So I would choose routing over large broadcast domains any day.

If by routing module you mean the MSM (separate line card, not a daughter card on the Sup) then the perf is (I think) about 4-6Mpps for IP unicast, still not bad, but there is no good ACL or QoS support so you need to consider if that is needed.

New Member

Re: Subneting Campus: When proceed?

Ok, the switch has a MSFC card. Thank you.

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