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From: krumvp@opus.uucp (Paul Krumviede)
Newsgroups: comp.dcom.modems
Subject: Re: 8-bit byte can be sent w/o xform ?
Message-ID: <1431@tymix.UUCP>
Date: Thu, 15-Oct-87 16:44:40 EDT
Article-I.D.: tymix.1431
Posted: Thu Oct 15 16:44:40 1987
Date-Received: Sat, 17-Oct-87 16:25:44 EDT
References: <167100015@uiucdcsb> <713@ccd700.UUCP>
Sender: usenet@tymix.UUCP
Reply-To: krumvp@opus.UUCP (Paul Krumviede)
Followup-To: comp.dcom.modems
Organization: Tymnet QSATS, San Jose CA
Lines: 16
Summary: Tymnet doesn't xform data (usually)

In article <713@ccd700.UUCP> reh@ccd700.UUCP (reh) writes:
>   The TYMNET network does convert 8-bit characters to 7 bit characters
>and sends the 8th bits as an extra character after each 7 in it's internal
>network, but that is transparent to the user and does not reach the user's
>modem. (user runs normal 8 bits)  That is the only network that I know
>that does that kind of conversion.
>......................................................................
>Bob Harold                      313-845-5404   
>Ford Motor Co., DPTC room B-206 ...!ihnp4!mibte!ccd700!eed090!bob

Tymnet does not do this internally.  The only transformation is to
"escape" binary data with values of 00x-07x by preceeding such data
with a hex 00.  I'm not sure where this confusion could have originated;
I don't think any host protocols do anything like this either.

Paul Krumviede, Tymnet Technical Support