There are two commands that can be very useful to see network interfaces status, and speed. But you must have root privileges to run them
bash-3.00# dladm show-dev
e1000g0 link: unknown speed: 0 Mbps duplex: half
e1000g1 link: unknown speed: 0 Mbps duplex: half
e1000g2 link: unknown speed: 0 Mbps
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