Obtaining Ethernet Status With Apple System Profiler

You can use Apple System Profiler to determine the status of your computer's Ethernet connection.

Apple System Profiler version 2.1.2 (and later) has the ability to indicate Link up or down, Half or Full duplex, as well as 10 megabit or 100 megabit connection speed.

The Network overview section in the main Apple System Profiler window has a field labeled Link that gives this information.

Note: If the Ethernet port is not connected to a live Ethernet connection, Apple System Profiler indicates Link down, and all other options are indicated as n/a.

Related documents


106772: "Mac OS X: Network 'Up' Flag Does Not Accurately Indicate Working Connection"

Published Date: Feb 20, 2012