kern/121257: [tcp] TSO + natd -> slow outgoing tcp traffic
Takefu
takefu at airport.fm
Wed Jun 10 05:40:03 UTC 2009
The following reply was made to PR kern/121257; it has been noted by GNATS.
From: Takefu <takefu at airport.fm>
To: bug-followup at FreeBSD.org, vnovy at vnovy.net
Cc:
Subject: Re: kern/121257: [tcp] TSO + natd -> slow outgoing tcp traffic
Date: Wed, 10 Jun 2009 14:14:42 +0900
> Dropped Receive Packets on Half-duplex 10/100 Networks
> ------------------------------------------------------
> If you have an Intel PCI Express adapter installed, running at 10 or
> 100 Mbps, half-duplex, with TCP Segment Offload (TSO) enabled, you may
> observe occasional dropped receive packets. To work around this
> problem, disable TSO, or update the network to operate in full-duplex
> and/or 1 Gbps.
http://downloadmirror.intel.com/14614/eng/rel_notes_v14_0.txt
:-)
More information about the freebsd-net
mailing list