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Cisco 2921 - NAT performance

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Hi,

I need a router doing simple SNAT. There will be around 500 to 2000 users behind the device. What NAT performance can be expected?

Btw, there will be no additional service running, so simple SNAT, no ACL, no firewall.

thanks in advance

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Since you entered you question as a document, unable to attach Cisco source document, but Cisco notes 2921 PAT performance as 138 Mbps for a 2921 (@ 75% CPU load).

I would suggest a 2951 is the best to handle the mentioned user count.

We have nearly 2000 above user pc's for which all the NAT performing by the 2951 router (two in hsrp mode).

The CPU is constant between 20 to 30% (spikes up to 60%)

Please rate the helpfull posts.

Regards,

Naidu.