Fortigate will cause lots of latency
I am working on a small setting that has few basic security zones, with a Fortigate 60c sitting at the middle acting traffic monitoring agent.
Now I have noticed that even very light load to the Fortigate will cause lots of latency, and when it gets heavily loaded it will be crapping out well below the rated speed. I am assuming that this is because we are running a Dinky box near the bottom of the range in NAT mode with a few IDS features enabled.
Right now, this isn't really a big issue, but looking forward to the next level of platform, I am afraid that this may cause a significant problem. My predictions are pushing us around 5gbs between various security zones with a hard requirement to run IDS/IPS against all of it. In added to that, we will be running our antivirus/application firewalling against ~100mbit of traffic coming in from the internet to our web server.
I was speculating what is the latency sensitive folks, like the High Frequency Traders, are using for their security.
There are a lot available article about the storage, server and switching used in HFT, but I didn't see much about basic firewalling, IDS, IPS and Application Firewalling. I don’t believe that they just skip in the name of lower latency.