Intel 10GBase-LR Ethernet card detected as 10GBase-SR

sthaug at sthaug at
Thu Jan 13 14:36:32 UTC 2011

> I have a server with an Intel X520-LR1 Ethernet card, which is a
> 10GBase-LR card:
> The problem is that this card is shown by ifconfig as a 10GBase-SR card:
> I made a 1-line patch to the 8.2-RC1 code, enclosed below, and now have
> ifconfig showing the expected value:

Problem report and patch now available as kern/153951.

Steinar Haug, Nethelp consulting, sthaug at

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