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Date:      Tue, 6 Apr 1999 02:41:17 -0400 (EDT)
From:      wpaul@ctr.columbia.edu (Bill Paul)
To:        davids@webmaster.com (David Schwartz)
Cc:        stable@freebsd.org
Subject:   Re: FW: Reveiver stops with MX98713-based 100Mbps Ethernet card
Message-ID:  <199904060641.CAA01796@sirius.ctr.columbia.edu>
In-Reply-To: <000001be7ff6$e9880340$021d85d1@whenever.youwant.to> from "David Schwartz" at Apr 5, 99 11:30:06 pm

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Of all the gin joints in all the towns in all the world, David Schwartz
had to walk into mine and say:
 
> 
> 
> -----Original Message-----
> From: David Schwartz [mailto:davids@webmaster.com]
> Sent: Monday, April 05, 1999 12:14 PM
> To: freebsd-stable@freebsd.org
> Subject: Reveiver stops with MX98713-based 100Mbps Ethernet card
> 
> 
> 
> 	I'm running 3.1-STABLE, current as of last night.

No no no. Stop it right there. This is only part of what you should have
said. You say 'current as of last night' but you don't say what you were
running before last night. Did the problem actually start last night?
If not, when did it start? When was the last time that it worked
correctly? The idea here is to give me some idea when the problem started
so that I can try to isolate a particular change that may have caused
the trouble. I can't do that based on this tiny bit of information.

> What happens is that
> anytime the Ethernet card gets really flooded with incoming packets (for
> example, if you FTP a 4Mb file from another machine on a local fast
> ethernet), the receiver simply stops receiving.

If you do netstat -in, do you see any input errors? Is the NIC connected
to a hub (repeater) or a switch? Is it running at 10Mbps or 100Mbps? Full
duplex or half? (If it's a repeater it better be half.)
 
> 	If it helps, the card is an SVEC PN102TX (early version). The later
> versions of this same card used the MX98715, I think. Mine's a 98713.

What kind of machine is it? CPU type? Speed? Intel or AMD?

> 	Any clues?

You're supposed to give me the clues.

-Bill

-- 
=============================================================================
-Bill Paul            (212) 854-6020 | System Manager, Master of Unix-Fu
Work:         wpaul@ctr.columbia.edu | Center for Telecommunications Research
Home:  wpaul@skynet.ctr.columbia.edu | Columbia University, New York City
=============================================================================
"Mulder, toads just fell from the sky!" "I guess their parachutes didn't open."
=============================================================================


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