On the website http://routerboard.com/RB750GL
it says with 25 ip filter rules the throughput on 1518B packets, the speed is 462Mbps.
Is that ingress+outgress speeeds?
meaning the client sees 231Mbps? or maybe its even ingrees+outgress of all the interfaces? meaning the client sees 115Mbps (in case the test is bi-directional)?
or is it as is, and the client side sees 462Mbps?
like for example here:
would they count it as 4Gbit of throughput? or 2Gbit?
Look at that column, there are 1Gbps three times when the rate is restricted by a port. So it should be one-way speed test i.e. rate is ingress OR outgress. In your case (462Mbps) rate is restricted by packet processing performance (37.6 kpps), so the real value depends on a quantity and complexity of filter rules and other conditions. I don’t know the methodology of that tests. Say, TCP traffic produces at least 2 times more packets when UDP, but it is unlikely what delivery confirmation TCP packet will go through the hole chain of 25 rules in a real case.