Date: Sun, 28 Dec 2003 15:33:31 -0800 From: "Kevin Oberman" <oberman@es.net> To: Dejan Lesjak <dejan.lesjak@ijs.si> Cc: freebsd-current@freebsd.org Subject: Re: 5.2-RC oerrs and collisions on dc0 Message-ID: <20031228233331.1F3F05D04@ptavv.es.net> In-Reply-To: Message from Dejan Lesjak <dejan.lesjak@ijs.si> <200312280049.50629.dejan.lesjak@ijs.si>
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> From: Dejan Lesjak <dejan.lesjak@ijs.si> > Date: Sun, 28 Dec 2003 00:49:50 +0100 > Sender: owner-freebsd-current@freebsd.org > > > --Boundary-00=_eqh7/a7oNAgo+1o > Content-Type: text/plain; > charset="us-ascii" > Content-Transfer-Encoding: 7bit > Content-Disposition: inline > > Hello, > > I tried 5.2-RC2 on alpha and netstat -i keeps showing oerrs and collisions > on dc card (DEC DE500-BA): > > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs > Coll > nge0* 1500 <Link#1> 00:04:5a:71:d2:e0 0 0 0 0 > 0 > dc0 1500 <Link#2> 00:00:f8:10:52:47 1478 0 737 335 > 5695 > dc0 1500 193.2.4 ewok 1103 - 733 - > - > lo0 16384 <Link#3> 14 0 14 0 > 0 > lo0 16384 your-net localhost 0 - 0 - This looks very much like an auto-negotiation problem. Can you check ifconfig dc0? To have collisions, it must be running half-duplex. (By definition collision detection is disabled in FDX.) The additional errors further support this. The other question is what the other end of this link sees. Is it running full or half duplex? If full duplex, is it seeing input errors? If the far end is running FDX, can you set this end explicitly to FDX? -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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