How to check if a Network drop has a link partner (aka connected)

[Alzhy]

Anyway to tell?

Will ethtool indicate something?

TIA.

[Hakki Aydin Ucar]

Hi,

If I get your question correctly , I think wireshark can have some possibilities ?

[rick jones · Accepted solution]

If you issue ethtool it will include a line "Link detected:" with either "yes" or "no" afterwards. At least that is what happens with ethtool on the Ubuntu Jaunty Jackelope system I just tried.

[Goran Koruga]

Like already mentioned, ethtool or mii-diag for old drivers/releases.

Goran

[Alzhy]

ethtool indeed reports on Link readiness, my terminal snipped the last line so I did not notice it. Also mii-tool seems to do the trick too.

Rick -- Jaunty Jackalope - that Debian release -- pretty awesome! Cloud ready, KVM ease and for the Home,SBE user in this era of high power costs -- Server Sleep and Resume "that really works!"

Can't wait for Kalmic Koala though.. ;^))