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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: mblack@csihq.com (Mike Black)
Cc: f.v.heusden@ftr.nl (Heusden Folkert van), linux-kernel@vger.kernel.org
Subject: Re: Client receives TCP packets but does not ACK
Date: Fri, 15 Jun 2001 20:12:48 +0100 (BST)	[thread overview]
Message-ID: <E15Az1U-0006wI-00@the-village.bc.nu> (raw)
In-Reply-To: <03c701c0f5c8$e15f7e10$e1de11cc@csihq.com> from "Mike Black" at Jun 15, 2001 02:27:47 PM

> TCP is guaranteed delivery at layer 5 -- but that's all -- not a "guaranteed
> protocol"

For certain specific cases this is in itself not true either. Also for many
many implementations.

Specifically
1.	If the receiver closes and there is unread data many TCP's forget
	to RST the sender to indicate that data was lost.

2.	There is a flaw in the TCP protocol itself that is extremely unlikely
	to bite people but can in theory cause wrong data in some unusual
	circumstances that Ian Heavans found and has yet to be fixed by
	the keepers of the protocol.



  parent reply	other threads:[~2001-06-15 19:14 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-15 12:53 Heusden, Folkert van
2001-06-15 18:27 ` Mike Black
2001-06-15 18:39   ` Gérard Roudier
2001-06-15 19:12   ` Alan Cox [this message]
2001-06-17 18:17     ` Pavel Machek
2001-06-17 19:32       ` Alan Cox
2001-06-17 19:40       ` Dan Podeanu
     [not found]         ` <200106172113.f5HLDhJ377473@saturn.cs.uml.edu>
2001-06-17 22:09           ` Dan Podeanu
2001-06-17 22:35         ` dean gaudet
2001-06-18 11:50 ` Jan Hudec
2001-06-18 16:17   ` dean gaudet
2001-06-18 16:48     ` Jonathan Morton
2001-06-18 22:30       ` dean gaudet
2001-06-18 23:43         ` Jonathan Morton
2001-06-19  2:46           ` dean gaudet
2001-06-20 21:01   ` David Schwartz
  -- strict thread matches above, loose matches on Subject: below --
2001-07-01 21:27 Nivedita Singhvi
2001-07-11  3:43 ` Robert Kleemann
     [not found] <E15BiHy-0002xC-00@the-village.bc.nu.suse.lists.linux.kernel>
2001-06-17 20:21 ` Andi Kleen
     [not found] <Pine.LNX.4.33.0106121720310.1152-100000@localhost.localdomain.suse.lists.linux.kernel>
2001-06-13  8:48 ` Andi Kleen
2001-06-13 16:09   ` Robert Kleemann
2001-06-13  0:26 Robert Kleemann
2001-06-15  3:50 ` Robert Kleemann
2001-06-15 12:44   ` Mike Black
2001-06-15 18:29     ` Albert D. Cahalan
2001-06-15 23:10       ` Robert Kleemann
2001-06-16 11:55       ` Mike Black
2001-06-16 23:56 ` Robert Kleemann
2001-06-27  1:04   ` Robert Kleemann

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