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Date:      Fri, 11 Jun 1999 17:33:53 -0400
From:      Mitch Collinsworth <mkc@Graphics.Cornell.EDU>
To:        Marie-Josee Blais <mjblais@miranda.com>
Cc:        Mike Tancsa <mike@sentex.net>, questions@FreeBSD.ORG
Subject:   Re: Network slowed down 
Message-ID:  <199906112133.AA116666833@broccoli.graphics.cornell.edu>
In-Reply-To: Your message of "Fri, 11 Jun 1999 11:37:54 EDT." <199906111540.LAA02057@norton.miranda.com> 

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I have seen cases where a card that is supposed to do 100 Full just
can't handle it.  In these cases locking the switch port to 100 Half
has resulted in a dramatic speed-up in my experience.  I can't tell
you offhand which cards these were, but give it a try.

-Mitch


>It is on a switch ! Actually everything is set on auto on both sides so
>they should be detecting the speed by themselves.  Should I force the
>communication to a 100 Mbits (The server and the switch are in the same
>room ) or only use Half duplex or etc ?  I also checked if both had
>detected the same thing and both say 100Mbits and Full duplex.
>
>At 11:42 1999-06-11 -0400, Mike Tancsa wrote:
>>At 09:55 AM 6/11/99 , Marie-Josee Blais wrote:
>>>The problem has come back and I tried netstat -ni and there is no errors
>>>and no collisions.
>>>I have also looked at the output of tcpdump and trafshow and I can't see
>>>anything out of the ordinary.
>>
>>Is it on a switch ?  Check the duplex settings on both the card and the
>>switch.  When these are out of whack, nasty slowdowns will happen.
>>
>>	---Mike
>>**********************************************************************
>>Mike Tancsa, Network Admin        *  mike@sentex.net
>>Sentex Communications Corp,       *  http://www.sentex.net/mike
>>Cambridge, Ontario                *  01.519.651.3400
>>Canada                            *
>>=20
>/-----------------------------\
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>| E-mail:mjblais@miranda.com=A0 |
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>
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