Subject: Re: `ifconfig wm3 ip4csum` creates bad cksums via tcpdump
To: None <firstname.lastname@example.org>
From: Charlie Allom <email@example.com>
Date: 05/22/2007 17:24:04
Content-Type: text/plain; charset=us-ascii
On Tue, May 22, 2007 at 07:50:34AM +1000, Daniel Carosone wrote:
> On Sat, May 19, 2007 at 07:17:43PM +0100, Charlie Allom wrote:
> > % ifconfig wm3 tcp4csum udp4csum tso4 ip4csum
> > [[wait 34 seconds! poor sockets ]]
> That seems weird. Can you determine whether this is some kind of name
> resolution problem for, say, 'tcp4sum', or really time spent waiting
> in the driver to set the flags?
other systems don't do it with different cards?
would it matter how much traffic is flowing through it?
does it link down - then link up? could be the cisco switch?
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