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Cisco Pix CPU utilization

Good morning I'm writing you because since when I have made Pix upgrade from rel.6.3.5 to 7.1.2, I have seen an increase of the CPU utilization, with the same configuration of the appliance.

#sh ver

Cisco PIX Security Appliance Software Version 7.1(2)

Hardware: PIX-525, 256 MB RAM, CPU Pentium III 600 MHz

Licensed features for this platform:

Maximum Physical Interfaces : 10

Maximum VLANs : 100

Inside Hosts : Unlimited

Failover : Active/Active

VPN-DES : Enabled

VPN-3DES-AES : Enabled

Cut-through Proxy : Enabled

Guards : Enabled

URL Filtering : Enabled

Security Contexts : 2

GTP/GPRS : Disabled

VPN Peers : Unlimited

This platform has an Unrestricted (UR) license.

# show processes


PC SP STATE Runtime SBASE Stack Process

Mrd 00212b72 018dff78 011c9d88 2397865581 018dc030 11772/16384 Dispatch Unit

What'is this Dispatch Unit process?

# show processes cpu-hog


-------------- --------------- --------------- ---------

530 687 260 Dispatch Unit

120 10 120 ssh

3090 1 3090 CTM message handler

120 158 120 ci/console

120 147 120 fover_rep

360 7 350 fover_parse

Look file in attach to see the CPU utilization in a year of production, in conjuction of Pix upgrade, in May 2006, the CPU load start from 5% to 20% plus.

What kind of check can I made?

The output of command #sh cpu don't said me important information, or I can't interpret correctly (I have used also the Output Interpreter tool but i don't understand very well the output of commands)

Any information that you can send me are welcomed

Best Regards



Re: Cisco Pix CPU utilization

you can use following command to view CPU utilization

show block, show memory and show traffic.

Check this link for more info:

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