Poor network performance: a lot of timeouts

Sebastian Ahndorf webmaster at it-is-warlock.de
Mon May 30 13:56:57 PDT 2005

Kris Kennaway wrote:
>>Both sides must have same config, autosense should work if there is no 
>>config possibility in other end.
> autosense may in fact not work, especially on low-quality NICs like rl.

I don't agree to that.
I had similar problems with my network using a cheap switch with some 
realtek nics. I had the nics running 100baseTX Full Duplex.
Changing this to autosense made the problems gone.

Reason (as some people of the german questions-list told me):
Many cheap switches always send their autosensepakets, and have great 
problems if the nics connected to the switch do not response to the 
autosensepakets (cause they are configured to 10/100baseTX full/half 
Also realtek nics are far away from being good nics, they work without 
problems with the autosensemode and a cheap switch for me (and many 
other people I know).

I would suggest the starter of this thread to use autosense with his nic 
(if not tested yet).

> Kris

Best regards

More information about the freebsd-stable mailing list