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Intrusion Prevention causing slow internet speeds

Since upgrading the firmware to the latest version 9.312-8 my internet performance has fallen massively. I have a Gbit connection to the internet and with Intrusion prevention turned on, I get anything from 10mbit to 100mbit depending on number of users. If IP is turned off my internet download speed jumps up to 650-800 Mbit/s.

Can anyone shed some light on what is wrong?

Thanks

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0 Scott_Klassen over 8 years ago

Search for IPS threads, especially for responses from William for your answer. In a nutshell, IPS is single threaded, so for a single user session it can only use one core. This is also why the total throughput goes up the more users that are passing traffic.

__________________
ACE v8/SCA v9.3

...still have a v5 install disk in a box somewhere.

http://xkcd.com
http://www.tedgoff.com/mb
http://www.projectcartoon.com/cartoon/1
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0 Scott_Klassen over 8 years ago

Search for IPS threads, especially for responses from William for your answer. In a nutshell, IPS is single threaded, so for a single user session it can only use one core. This is also why the total throughput goes up the more users that are passing traffic.

__________________
ACE v8/SCA v9.3

...still have a v5 install disk in a box somewhere.

http://xkcd.com
http://www.tedgoff.com/mb
http://www.projectcartoon.com/cartoon/1
Cancel
Vote Up 0 Vote Down

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