Hi Xiong-- On 02/22/2011 08:38 PM, Xiong Huang wrote: > What I mean is to check if the cable link (you can check the peer link LED if your onboard NIC haven't) is ON. > If the cable link is ON, we may focus on software layer :) the peer (mini-switch) link LED stays off, regardless of unplug/replug of the cable, power-cycling the mini-switch, or of tweaking the interface via: ip link set eth0 down ip link set eth0 up However, the peer link LED turns on immediately when i do: modprobe -v -r atl2 modprobe -v atl2 hope this is useful info, --dkg
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