10 Mar
2017
10 Mar
'17
3:57 p.m.
Lyndon Nerenberg <lyndon(a)orthanc.ca> wrote:
I have:
g: The original protocol from the 1970s
G: enhanced g-protocol introduced by Svr4
d: Protocol for DataKit connections.
e: Protocol for TCP links from HDB UUCP, similar to t-protocol.
BSD UUCP used an implementation from Arne Ludwig.
f: Seven Bit protocol with checksums on the entire file at a time
No protocol flow control, but XON/XOFF
It only uses the characters between \040 and \176 (' '..'~')
Written by Piet Beertema, CWI, Amsterdam, Sep 1984
Modified for X.25 by Robert Elz, Melbourne Univ, Mar 1985
F: flow control protocol similar to f-protocol.
Written by Piet Beertema, CWI, Amsterdam, Sep 1984
Modified for X.25 by Robert Elz, Melbourne Univ, Mar 1985
Probably created from f-protocol by Carsten Borman TU-Berlin
or by me (Jörg Schilling)
h: A protocol similar to the t-protocol with no error checking.
Apparently used for HST modems.
s: High 's'peed protocol based on the g-protocol.
Variable block sizes 32..4096 bytes, up to 7 windows
Written by me (Jörg Schilling)
t: Protocol for TCP links from BSD
Most likely from Rick Adams
x: Protocol for X.25 links
Jörg
--
EMail:joerg@schily.net (home) Jörg Schilling D-13353 Berlin
joerg.schilling(a)fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/
On Mar 9, 2017, at 7:45 PM, Dan Cross
<crossd(a)gmail.com> wrote:
It seems that there was a whole slew of protocols at one time.
g: the original
G: a later (HDB?) SVRx version that did 256 byte packets and a seven packet window
f: X.25 optimized printable-characters-only
x: similar to above?
z: Doug Evans wrote this as an alternative to 'f' back when 8-bit paths were
not everywhere yet.
i: 'internet' stream the data.
g, G, and f, we can get definitions for easily enough I think. For 'z' I can
track down Doug, but Taylor UUCP should have the details.