OT: how to blink NIC lights

[poma]

On 02/14/13 01:14, Rick Stevens wrote:
> On 02/13/2013 02:42 PM, Mike Wright issued this missive:
>> Hi all,
>>
>> I need to be able to identify which networks are on which NICs on a
>> multi-homed box.
>>
>> There is a program that, when given an IP, will cause the associated
>> NIC's leds to blink, whether or not it has a physical connection to an
>> ethernet cable.  Used for debugging.
>>
>> Thought it was ping but I can't find any options for that.
>>
>> Anybody else remember what it is?
> 
> "ethtool --identify <NICname>" or "ethtool -p <NICname>", example:
> 
>     ethtool -p eth0
>     ethtool --identify eth0

ethtool -p eth-r8169
Cannot identify NIC: Operation not supported
ethtool -p eth-forcedeth
Cannot identify NIC: Operation not supported
ethtool -p eth-usbnet
Cannot identify NIC: Operation not supported

Cheers,
poma