Re: Linux iSCSI Initiator, OpenSource (fwd) (Re: Gauntlet Set NOW!)

From: Larry McVoy (lm@bitmover.com)
Date: Tue Jan 07 2003 - 20:08:04 EST


On Wed, Jan 08, 2003 at 01:43:01AM +0000, Alan Cox wrote:
> On Wed, 2003-01-08 at 00:04, Roman Zippel wrote:
> > If you want to compare apples with apples, you should rather tell me how
> > I turn off the checksumming of my nic.
>
> For some cards you can do this. For instructive information on the effects
> look at the saga of sunos 3.x and NFS over wans. Old SunOS turned off UDP
> checksums for NFS. It provided an adequate demonstration that UDP checksums
> for NFS are needed. Sun of course addressed this design error long long
> ago.

BK has a pretty lame checksum but good enough to catch a lot of errors
and we still catch 'em. Software, hardware, network, whatever, they
happen all the time.

-- 
---
Larry McVoy            	 lm at bitmover.com           http://www.bitmover.com/lm 
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