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Step-by-Step Configuration and Troubleshooting Best Practices for the NGFW, NGIPS and AMP Technologies A Visual Guide to the Cisco Firepower Threat Defense (FTD)
Community Member

PIX 515 productivity

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?

Thanks,

Vlad

4 REPLIES
Community Member

Re: PIX 515 productivity

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

Community Member

Re: PIX 515 productivity

What PIX software release are you running?

Thanks,

Dave H

Community Member

Re: PIX 515 productivity

it's 6.3(4). Unfortunately there is no way I can upgrade it.

Re: PIX 515 productivity

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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