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From: art@OPAL.ACC.COM (Art Berggreen)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Duplicate packets in Internet.
Message-ID: <9006011617.AA13475@opal.acc.com>
Date: 1 Jun 90 16:17:08 GMT
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Newsgroups: comp.protocols.tcp-ip
Subject: Re: Duplicate packets in Internet.
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References: <24688@mimsy.umd.edu>
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Organization: Advanced Computer Communications, Santa Barbara, California
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In article <24688@mimsy.umd.edu> dheeraj@cs.umd.edu (Dheeraj Sanghi) writes:
>
>I wonder if people have noticed duplicate IP packets in
>any study. Is there any possibility of duplication apart
>from because of some bug in the gateway software?

The most common source would be from unneccessary transport level
retransmissions.  This is usually due to rapid build up of congestion.
This is aggravated by non adapting retransmission strategies.
The most famous situation is the "congestion collapse" first described
(I believe) by Nagle.

>Any pointers in this regard would be much appreciated.
>
>Thanks,
>
>-dheeraj
>
>--
>Dheeraj Sanghi			(h):301-794-6247	(o):301-454-1516
>Internet: dheeraj@cs.umd.edu	UUCP: uunet!mimsy!dheeraj
>If you want to judge the culture and civilization of a people you can find
>that out by the status and conditions of the women of the country. - Nehru

Art Berggreen
ACC