[3390] in linux-net channel archive
Re: your mail
daemon@ATHENA.MIT.EDU (Dennis)
Sat Jun 22 04:16:41 1996
Date: Fri, 21 Jun 1996 18:19:23 -0400
To: Alan Cox <alan@cymru.net>
From: dennis@etinc.com (Dennis)
Cc: linux-net@vger.rutgers.edu
>> Can anyone with TCP and/or Linux driver internals comment whether such
>> a scheme is feasible, and whether TCP is suited to handle the
>> situation wrt. acks etc. by itself, given a slow-down network layer?
>
>It is counter intutitive in some ways but the way to slow a remote TCP down
>is to properly model a slow link including discarding packets
If you discard packets then you are not modelling a slow(er) link.
Packets that are discarded change the characteristics of the connection
for those packets with a result that is not acceptable to end user
applications. Anyone whose been on a flakey link knows that a T1 line
that drops 10% of its traffic yields unacceptable throughput due to the
timeouts, certainly no-where near 90% of T1. More like 8k.
Dennis
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