Date: Sun, 02 Apr 2000 03:56:55 -0500 From: John Lengeling <johnl@raccoon.com> To: Veaceslav Revutchi <sl@dnt.md> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: late collisions, how to detect them? Message-ID: <38E70B57.B66CD842@raccoon.com> References: <Pine.BSF.4.10.10003301118520.22899-100000@zeus.dnt.md>
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I think freebsd just increments the input/output error counter on the device driver for ethernet errors like late collisions, bad checksums, and frame alignment. The netstat -i command lists the input/output errors. The driver for the ethernet card would have access to what ever the ethernet chip tracks. You could write a program to get the individual error counts. If you see your ierror or oerror counters increasing between a couple of invocations of netstat -i, you have a physical layer problem. Check the transeiver, cabling, nic card. johnl Veaceslav Revutchi wrote: > > Hello, > > How can one detect on a FreeBSD machine if there is late collisions > happening on the LAN? > I had a problem recently with a faulty card which was causing late > collisions and I was happy to have a cisco router on the same segment > which reported late collisions so at least I knew I have to look for > a troubled card. > > thank you. > Veaceslav > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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