PIX 515 productivity

Unanswered Question
Aug 17th, 2007

Hi everyone,

The situation is as follows:

My transfer rate is 4-5 times slower if I am behind my firewall comparing to bypassing it.

Memory usage is 30% of total.

CPU usage is in 1-3%.

Is it a normal situation or we just use the wrong equipment and need to implement some more powerfull solution?



I have this problem too.
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rigoberto.cintr... Fri, 08/17/2007 - 09:52

Check to that firewall connections are set to 100Mbps Full Duplex in the switches and the firewall.

dhucaby Fri, 08/17/2007 - 11:49

What PIX software release are you running?


Dave H

anandramapathy Wed, 08/22/2007 - 10:56

The firewall does statesful inspection, It has to check each & every packet, Maintain the state connection, So it would definitely be slower than Direct Communication.

What trasfer are you doing ? If it something like Microsoft file transfer then it is very chatty & the Firewall adds to the Delay.

Try to change the Window size of the TCP connection on both sides ( Usually a registry tweaking on the OS / application helps )


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