Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!GYRE.UMD.EDU!chris
From: chris@GYRE.UMD.EDU (Chris Torek)
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  Comments on your RFC 1106
Message-ID: <8906291303.AA05891@gyre.umd.edu>
Date: 29 Jun 89 13:03:09 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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Window size, packet size (MSS), and retransmit times are not all
inherently tied together.  (Related, yes; inextricably, no.)

Retransmit buffer space is (becoming) cheap.  One problem with large
windows (and small packets) in TCP, though, is that the effect on
overall transmission rate of random packet loss is magnified.  Other
this, the `Jacobson/Karels' (seems to me `Karn' ought to appear here
too) algorithms seem to work well in practise with the (admittedly not
large) 64 kB maximum windows in 4.3BSD-tahoe (only 1/64th of a
megabyte, hence `not large').

Chris