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From: JJW@SAIL.STANFORD.EDU (Joe Weening)
Newsgroups: mod.protocols.tcp-ip
Subject: Telnet binary mode
Message-ID: <8608210452.AA12386@ucbvax.Berkeley.EDU>
Date: Thu, 21-Aug-86 00:00:00 EDT
Article-I.D.: ucbvax.8608210452.AA12386
Posted: Thu Aug 21 00:00:00 1986
Date-Received: Thu, 21-Aug-86 05:45:19 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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Approved: tcp-ip@sri-nic.arpa

I'd like to find out what reasons people have for using Telnet binary
mode.  Do you use it for any of the following?

  a. To allow setting the 8th bit along with an ASCII character;
  b. To avoid the NVT CR/LF conventions;
  c. Some other pre-arranged interpretation between the hosts.  If so,
     how is this interpretation agreed on?

I've recently discovered that reason (a) is often unnecessary because many
systems allow the 8th bit without complaint.  (Is this a bug or a
feature?)  It seems easier to not use binary mode, and put up with the NVT
CR/LF conventions, to avoid a disagreement between the two sides about the
meaning of binary mode.