Date: Thu, 12 Nov 1998 14:06:31 -0800 From: David Greenman <dg@root.com> To: Randy Katz <rkatz@virtualisys.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: netstat -in Error question(s) Message-ID: <199811122206.OAA16806@root.com> In-Reply-To: Your message of "Thu, 12 Nov 1998 13:01:03 PST." <4.1.19981112125507.00a70b50@ccsales.com>
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>I have a machine with the T1 adapter and 2 Intel Etherexpress 10/100B >adapters and I've noticed that when Ierrs on fxp1 appear the router begins >to start dropping packets and strange things happen: > >1. An NFS mount ceases to perform. >2. Eventually pings stop happening. > >When I reboot the router everthing is fine for around 4 days. Here is my >netstat -in: > >Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll >eth0 1500 <Link> 86962 0 84074 0 0 >eth0 1500 207.155.75.16 207.155.75.161 86962 0 84074 0 0 >eth1* 1500 <Link> 0 0 0 0 0 >fxp0 1500 <Link> 00.a0.c9.e3.da.b6 16979989 32 18465963 0 0 >fxp0 1500 209.48.66.128 209.48.66.148 16979989 32 18465963 0 0 >fxp1 1500 <Link> 00.a0.c9.de.87.5f 20180241 0 18277276 0 0 >fxp1 1500 216.0.20/23 216.0.20.1 20180241 0 18277276 0 0 > >Questions: > >1. What would produce any Ierrs, how are they produced? >2. Is this possibly a driver issue (I'm pushing an average of 5mbit >throughput)? >3. I've changed the adapters out and no difference, can this be a problem >of having two of the same adapters and PCI? > >Thoughts/comments? Input errors can be caused by a variety of things, including cabling problems, wrong duplex, and input buffer overflows. What sort of machine is this (CPU/motherboard)? 5Mbps is relatively very low traffic. For comparison, wcarchive does around 85Mbps on average, with uptimes that have been in the months. What version of FreeBSD are you using? Are the interfaces operating in 10Mbps mode or 100Mbps mode? There is a hardware bug when using them in 10Mbps mode that can be (and is in newer versions of FreeBSD) worked around in software. The bug causes the receiver to go dead. It looks like you're using a switch (no collisions); what type of switch are you using and how is the duplex configured? -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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