Hi, i ordered 3 crs112, im disapointed of the bad performance. I know cpu is only 400mhz, but even for switching purposes the cpu running high

2 x crs112 linled together:

I cant use the embeded speed test because the cpu is runing to 100% quickly. only 39mbps of troughput.

If i plug my laptop to the switch then the switch to the routeur, i can push 100mbps of my isp bandwith but the cpu is running around 25%.



I need a better switch.

I need the bandwith test server work properly.


what do you suggest to me?

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.

If you are "properly" switching then it won't touch the CPU. You are most likely bridging.

No routing, ether1 master port.


Even tried the quick setup tab to set it up as a switch. Same result.

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 ?

750upr2, ccr1009 crs125 show me the true speed.


CRS112 have dificulty to handle 100mbps without burning is cpu to 25%.

Simply, don't use the built in speedtest tool. It is CPU dependant. Use iPerf on "real" machines either side of the switches.

why mikrotik give us this tool?

why mikrotik give us this tool?

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.

thanks !