PIX-515 acceptable CPU usage?

["Adam Greene" <maillist () webjogger net>]

Hi --

We're deploying OSPF on our network for the first time, and it looks like it
will be convenient to enable OSPF on our PIX-515-UR's as well (running 6.3.3
OS). The problem
is, the moment I enable OSPF on the pixes, CPU usage on them shoots up from
0-1% to 7-10% (sh cpu usage). Each interface I add to area 0 appears to add
1-2% to CPU usage as well.

I've tried googling for acceptable CPU usage levels on the PIX, but came up
dry. Does anyone have a benchmark they can refer me to?

We're going to be passing about 5 Mbps through these pixes in the short term
(may grow to 10Mbps or higher). It would be nice to know that ongoing 15%
CPU usage is not going to cause noticeable performance degradation to our
users (we are broadband ISP).

Any input anyone may have is very welcome. Thanks for your help.

--Adam

P.S. we're running 6.3.3 on the pixes

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