Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site hadron.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!mhuxj!mhuxr!ulysses!allegra!mit-eddie!genrad!panda!talcott!harvard!seismo!rlgvax!prcrs!hadron!jsdy
From: jsdy@hadron.UUCP (Joseph S. D. Yao)
Newsgroups: net.bugs.4bsd
Subject: Re: Pseudo terminal problems
Message-ID: <105@hadron.UUCP>
Date: Wed, 20-Feb-85 01:30:07 EST
Article-I.D.: hadron.105
Posted: Wed Feb 20 01:30:07 1985
Date-Received: Fri, 1-Mar-85 06:00:30 EST
References: <270@cheviot.UUCP>
Organization: Hadron, Inc., Fairfax, VA
Lines: 20

> Our problem stems from how echoing is handled on both  NUNET  and
> UNIX:
> 
> Terminal         Network         Interface          UNIX
>    1 --------------
>                    | 2
>      <-------------
>                    :
>                     ----- 3 ----->   4  ----------->
>                                         <----------- 5
>                     <---- 6 ------
>    7 <-------------

BB&N and/or Perkin-Elmer TCP-IP code do the following:
While in cooked mode, echoing is local (1-2), and remote echoing
(5-6-7) is turned off.  Packets are sent per line.  When in raw/cbreak-
noecho mode, character transmission is single-character-at-a-time.  It
works well.

Joe Yao		hadron!jsdy@seismo.{ARPA,UUCP}