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000259_news@newsmaster….columbia.edu _Mon Feb 23 02:56:53 1998.msg
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From: dz@mir.glas.apc.org (Dmitry the Zuryanovich)
Newsgroups: comp.protocols.kermit.misc
Subject: rts/cts problem
Date: 23 Feb 1998 02:05:12 +0300
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Ckermit: 6.0.193 A.03.
OS: SCO OSE 5.04+RSc
Comm-Driver: SCO standart, not fas.
Modem: DSI Connection Internal, locked at 38400, it has no problems under
OS/2 and OpenDOS.
Problem: it works great, until I do not transfer large thing from me, no
matter what way ( except kermit protocol - it is too slow, but it helps,
as it was designed to )
Looks like:
redir sz some_great_file.jpg
sz: sending-sending-sending first 5K with an increadible CPS
modem: ( generally - remote modem, tested at lot of systems) hangup.
The same thing with ppp. redir ppp rts/cts ( ppp from Morning Star technologies)
established LCP, getting ip and works great, again, until I do not
say ftp send smth-big. The same result.
.kermrc
set line /dev/tty1a
set speed 38400
set flow-control rts/cts
set modem flow rts/cts
blah-blah-blah, but w/o set modem line
Then I start kermit, say connect and dial ( by ATD command)
Looks like kermit doesnt set one of rts/cts flow; too many bytes is
written to modem, but modem buffer overflows and it causes this error.
Modem is seted up with the greatest command AT&F, and it is enough ( includes
rts/cts and so on)
Question: What to do ;-)
Another question, advanced: so, I have sz writing to standart output.
Can it set hardware flow control to standart output( via tcsetattr, or
ioctl )? Is it sz's business to do it?
Thanks.