tx underrun ???

[Vincent Blondel]

Hello all,

When having a look at log files on my web servers, I regulary see next output on the 3COM ethernet interfaces :


    xl1: transmission error: 90
    xl1: tx underrun, increasing tx start threshold to 120 bytes
    xl1: transmission error: 90
    xl1: tx underrun, increasing tx start threshold to 180 bytes
    xl1: promiscuous mode enabled
    xl1: promiscuous mode disabled

Can somebody explain me what it is and if this situation is normal ?

Regards
Vincent