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TCP-group 1995

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Re: Flag Frames

To: tcp-group@ucsd.edu
Subject: Re: Flag Frames
From: dkelly@nebula.tbe.com (david kelly)
Date: Tue, 3 Jan 95 13:08:33 -0600
Cc: fsanford@foxboro.com

Fred - ka1cqd said
> I saw a reference in the PacComm NB-96 modem manual, that all TNCs may not
> generate flag frames at the beginning of a transmission.  I working on

Does it say "flag frames" or "frame flags"? A packet *MUST* start with one
or more flags, or my understanding is totally wrong. As I recall from the
AX.25 spec, a single flag may end one frame and start the next. Maybe that
is what PacComm was saying? Meanwhile flags are repetively sent during the
TXDelay interval. And some number are sent after the last frame.

David N4HHE
dkelly@nebula.tbe.com

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