Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!pacbell.com!pacbell!rtech!ingres!rog
From: rog@ingres.com (Roger Taranto)
Newsgroups: comp.sys.3b1
Subject: Re: patching "windows" from 3 to 7 in uucico
Keywords: uucico UUCP windows
Message-ID: <1991Jun2.224048.7111@ingres.Ingres.COM>
Date: 2 Jun 91 22:40:48 GMT
References: <1991May25.152232.27860@quest.UUCP>
Reply-To: rog@Ingres.COM (Roger Taranto)
Organization: ASK Computer Systems, INGRES Products Division, Alameda, CA 94501
Lines: 13

In article <1991May25.152232.27860@quest.UUCP> ssb@quest.UUCP (Scott Bertilson) writes:
>  Regarding UUCP windowing, I'm pretty sure the default packet size
>is 64 bytes and I'm sure the default window is 3 packets...meaning
>that 3 packets can be outstanding and unacknowledged before it stops
>sending.  Increasing the number to 7 means up to 7 packets can be
>outstanding before the transmitting system stops sending to wait
>for an acknowledge.  The "windows" number applies to the machine

How were the 3 and 7 chosen?  Is there any research on the optimal
number of un-ack'ed packets?  Why not raise it to 16 or 32 or ...?

-Roger
{mtxinu,pacbell,amdahl,sun,hoptoad}!rtech!rog		rog@ingres.com