How do I check ethernet port speed?

[drabisan]

Hi,

Apologies if this was answered before, but search doesn't help at all.

I knew one cable was a bit loose, but I was too lazy to replace it. It is connected to an unmanaged switch and I just noticed the speed was capped to 100mbps.
I replace it and speed was back on.

But I realized I have no idea how to check the speed on LAN ports unless I connect my laptop on the other side and I wonder if there's a known or hidden trick build in my Asus RT-AC68U that can allow that.
Asus WRT, latest official available today on the support site, not a fancy setup.

Thanks

 

[wouterv]

I believe to know Asuswrt-Merlin firmware (based on stock firmware with many additional features) shows LAN port state and speed info:
http://www.lostrealm.ca/tower/node/79

 

[joegreat]

How do I check ethernet port speed?

Hi,

If you are able to use telnet/putty you can get full details like this:

chief@RT-AC68U:/tmp# robocfg show
Switch: enabled
Port 0: 1000FD enabled stp: none vlan: 2 jumbo: off mac: 00:01:11:22:33:44
Port 1:   DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
Port 2: 1000FD enabled stp: none vlan: 1 jumbo: off mac: 00:0e:11:22:33:44
Port 3: 1000FD enabled stp: none vlan: 1 jumbo: off mac: 38:2c:11:22:33:44
Port 4:   DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
Port 8:   DOWN enabled stp: none vlan: 2 jumbo: off mac: 00:00:00:00:00:00

With kind regards
Joe

 

[drabisan]

Thanks Joe!
That's exactly what I was looking for!