Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/5/84; site kitty.UUCP
Path: utzoo!linus!philabs!cmcl2!seismo!rochester!rocksanne!sunybcs!kitty!larry
From: larry@kitty.UUCP (Larry Lippman)
Newsgroups: net.micro.att
Subject: Re: Re: 7300 Probs. - CT are you out there?
Message-ID: <222@kitty.UUCP>
Date: Fri, 2-Aug-85 21:34:09 EDT
Article-I.D.: kitty.222
Posted: Fri Aug  2 21:34:09 1985
Date-Received: Sun, 4-Aug-85 07:37:27 EDT
References: <1054@homxa.UUCP> <6033@duke.UUCP>
Organization: Recognition Research Corp., Clarence, NY
Lines: 36

> In article <1054@homxa.UUCP> gritz@homxa.UUCP (R.SHARPLES) writes:
> >	2) Why does the unixpc write to the screen so slowly when connected
> >	   to a host at 9600.  I have logged into a vax (thru cu) through an lan
> >	   (ungermann/bass) at 9600.  Still, characters appear on the screen
> >	   just as slowly as at 1200.  I have checked and it is not that the
> >	   vax is loaded down.
> >
> 
> I use a 7300 connected through its RS-232 port to a VAX 11/785 running 4.2BSD.
> When I use the phone manager's terminal emulator to login on the VAX and cat 
> a large file, the screen scrolls at normal 9600 baud speed.  However, when I 
> use cu over the same line to login on the same VAX and cat the same file
> (with the same low load average on the VAX and no background activity on the
> 7300), the lines appear much more slowly, at what appears to be 1200 baud.
> I have done stty's on all the relavant ports (both machines), and they all say
> the line is at 9600 baud.

	Welcome to the club.  I bet if you look at an stty -a you will see that
ixon and ixoff are enabled.  Your 7300 is sending X-ON/X-OFF characters to
limit throughput. If you do an stty and disable them, you will no doubt lose
characters at 9,600 baud.  I also have this problem on 3B2's and systems
running Unisoft Sys V.
	The simple truth is that ain't no way cu can keep up a throughput of
greater than 2,400 baud.  Even 2,400 is marginal, but 1,200 is safe.
	Don't feel bad; I too learned this lesson the hard way.

	Larry Lippman
	Recognition Research Corp.
	Clarence, New York
	UUCP	{decvax,dual,rocksanne,rocksvax,watmath}!sunybcs!kitty!larry
		{rice,shell}!baylor!kitty!larry
		syr!buf!kitty!larry
	VOICE	716/741-9185
	TELEX	{via WUI} 69-71461 answerback: ELGECOMCLR

	"Have you hugged your cat today?"