It sounds like you are bridging or routing, and not switching.
The device can do wire-speed forwarding on all ports.
Did you remove the default config? Set all the ports in a bridge?
If you are using it as a switch, then all ports should have port 1 as it’s master.
The bandwidth test in the switch will not show the true speed. You will need to use something like a Linux based test on two boxes connected to the switch.
Im using bridged network and when i try to use switch chip real traffic became slow. for example
RouterA Bridged to Router B and RouterB bridged to RouterC. and I use switch on RouterC to connect RouterD. when i try bandwithtest betwen routerC and RouterD everything ok. But When i sent traffic from RouterA Or RouterB to RouterD traffic slow down from 100Mb to 70Mb. and i remove switch chip future than create bridge on RouterC traffic became normal. what can it be ?
As a basic tool to test bandwidth but you need to be aware you have bought the cheapest switch in then lineup. It does not have CPU power to generate the traffic to test up to 1Gb.
As you have already found, devices with better CPU give faster results. Use iPerf on real computers with enough grunt to do what you want.
