Re: Client receives TCP packets but does not ACK

[Dan Podeanu]

On Sun, Jun 17, 2001 at 08:17:27PM +0200, Pavel Machek wrote:

> > 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.

Bit offtopic.

Is there any logical reason why if, given fd is a connected, AF_INET,
SOCK_STREAM socket, and one does a write(fd, buffer, len); close(fd);
to the peer, over a rather slow network (read modem, satelite link, etc),
the data gets lost (the remote receives the disconnect before the last
packet). According to socket(7), even if SO_LINGER is not set, the data
is flushed in the background.

Is it Linux or TCP specific? Or some obvious techincal detail I'm missing?

Thanks, Dan.