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Switch L3 performance

I'm trying to find out if (for example) a 3750 with 2 10gb interfaces could run L3 routing at wire speed. Just basic routing between 2 subnets, no services.

The reason being it could be a significant reduction in cost in comparison to an ASR1002 doing a similar job.

I can't find any specific performance information on the switches at L3.

thanks for any help.

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Super Bronze

Re: Switch L3 performance


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Peformance often can be found somewhere within device datasheets.  You need to look for PPS and fabric bandwidth.  Since you're describing 10 gig, I assume your 3750 is an E or X series.  Both, if I recall correctly, have wire-speed capacity for all their ports including their 10 gig.  (The the original 3750 series were not always wire-speed capable.)

If you don't need 3750 stacking, you might also look into the 3560 and/or 4948 with 10 gig uplinks.


Found an old Cisco switch performance summary fact sheet (attached).

Hall of Fame Super Gold

Re: Switch L3 performance

If you are NOT doing any MPLS, then yes, I agree with Joseph, the 3560X/3750X with IP Services feature set will do.  Take note that the 10 Gbps network module is additional option.  The "X" series also have a dedicated module (with two 10 Gbps SFP+ ports) that will do MACSec upstream and downstream.

Will you be doing Netflow or NAT-ing?

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