Date: Wed, 20 Nov 2002 13:45:26 +0100 From: =?iso-8859-1?Q?Sten_Daniel_S=F8rsdal?= <sten.daniel.sorsdal@wan.no> To: "Randall Stewart" <randall@stewart.chicago.il.us>, "shubha mr" <shubha_mr@yahoo.com> Cc: <freebsd-questions@FreeBSD.ORG>, <freebsd-net@FreeBSD.ORG> Subject: RE: duplicate packets in ping? Message-ID: <0AF1BBDF1218F14E9B4CCE414744E70F07D1C5@exchange.wan.no>
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I've had similar issue with Intel Ethernet controllers (i82562ET and i82801BA/BAM). It was practically no load, and on the wire there was no duplicates but ping got duplicates anyway. - It only happens sporadically and it happens to about 10 boxes with the same FreeBSD version (exact same). Havent had the chance to dig into it though.... Same with you? -----Original Message----- From: Randall Stewart [mailto:randall@stewart.chicago.il.us] Sent: 20. november 2002 13:34 To: shubha mr Cc: freebsd-questions@FreeBSD.ORG; freebsd-net@FreeBSD.ORG Subject: Re: duplicate packets in ping? shubha mr wrote: > Ping on my device driver (for my NIC )gives duplicate packets.does > anyone know why they occur and how to eliminate them? > thanks > shubha > > __________________________________________________ > Do You Yahoo!? > Everything you'll ever need on one web page > from News and Sport to Email and Music Charts http://uk.my.yahoo.com > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > > I have noticed a similar occurance in some of my SCTP testing with all of the BSD's. In particular the linksys pcmcia cards seem to do this. In my testing and analysis this always seems to occur when the card is busy and what happens is you lose some packet and another appears to be duplicated... I traced this out with ethereal a while ago and then just stopped using that card when I figured out it was some sort of circular buffer issue.. I did not dig in and find out if it was the card or driver... I rather suspect it is the card (since it is a low end one).. but one never knows... R -- Randall R. Stewart randall@stewart.chicago.il.us 815-342-5222 (cell phone) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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