Date: Thu, 20 Mar 1997 00:16:37 -0800 (PST) From: Jaye Mathisen <mrcpu@cdsnet.net> To: hackers@freebsd.org Subject: CRC errors with SMC 100MBit? And vx0 driver. Message-ID: <Pine.NEB.3.95.970320001129.29913N-100000@mail.cdsnet.net>
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Using a SMC card in a 2.2-nearly-released-but-cannot-remember-exactly-which-march-revision, My 3com linkswitch 3k (And the NFS server receiving the data) is reporting that about 1% or so of the packets coming out of my SMC card to the server have CRC errors. Interestingly enough, it appears to only be via NFS traffic, since FTP's of 1 GB will go fine with no errors at a few MB/sec, but NFS traffic instantly causes them to appear. So I was thinking maybe it was UDP traffic, *but* as near as I can tell, I'm using TCP mounts. So heck if I know. It's annoying though. Any ideas? Actually, on a whim, I just swapped the SMC card for a 3COM 3c905 100MBit card, and it does similar type things. I've tested the cabling with my trusty Fluke LanMeter, and even a null cable with the cards back-to-back shows the problem, so I don't think it's my Switch.
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