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]=20 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=20 > anyone know why they occur and how to eliminate them? > thanks > shubha >=20 > __________________________________________________ > 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 >=20 > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message >=20 >=20 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 --=20 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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