Airport Extreme - Checking Port Speed

[shortcut3d]

I have an Airport Extreme as an access point (bridge mode) connected to a TimeCapsule. Everything is working great. However, I will be relying more heavily the ethernet connection.

The Airport Extreme is placed across the house. Some devices can connect back to the TimeCapsule on this port at Gigabit speeds, whereas some can only negotiate at 100M speed. Specifically, the Netgear PROSAFE Gigabit switch can only manage 100M. I wanted to check if the Airport Extreme is connecting at Gigabit speed to the TimeCapsule.

I've searched the Internet and can't find any documentation on how to see the port speed of Airport Extreme or TimeCapsule.

Any help?

 

[sailnavy]

Same issue

I have multiple Airport Extremes and I'd like to check the connection speeds on the ports between them as well. Doesn't appear to be any way to tell using Airport Utility.