From: Paul Mackerras <paulus@cs.anu.edu.au>
To: bob@kunk.jriver.com
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: Odd ethnetnet problem
Date: Fri, 6 Aug 1999 15:41:18 +1000 [thread overview]
Message-ID: <199908060541.PAA20067@tango.anu.edu.au> (raw)
In-Reply-To: <19990806045342.6946.qmail@kunk.jriver.com> (bob@kunk.jriver.com)
bob@kunk.jriver.com wrote:
> When the iMac talked to either Unix box from linux-ppc (several kernels
> tested), I would get nearly 100 percent on receive but REALLY slow
> response on transmit (like about 40k/sec). Watching the lights on the hub,
> it appears that there is a really big delay restarting transmit after
> a collision occurs. Perhaps duplex set wrong?
I have seen this too but I haven't figured out what's going wrong yet.
My suspicion is that some packets are getting corrupted somehow on
transmission and then we are having to wait for a TCP retransmit. A
tcpdump might yield some interesting information.
Paul.
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next prev parent reply other threads:[~1999-08-06 5:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-06 4:53 Odd ethnetnet problem bob
1999-08-06 5:41 ` Paul Mackerras [this message]
1999-08-06 5:46 ` Odd ethernet problem bob
1999-08-08 17:57 ` Odd iMac " bob
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