SUMMARY: uucico aborts with alarm after 1 KByte, ...
Dietmar Weis
weis at netmbx.UUCP
Fri May 31 04:03:59 AEST 1991
... thank you and follow up question - rather long
Please read and I'll summarize again.
I would like to thank all those people who did response to my question
related to uucico aborting after having send exactly 1 KByte, which I posted
a few weeks ago.
Unfortunately I didn't had the time to check out the suggestions, but I
suppose I can manage it in the next days.
As there were:
uflorida!ki4pv!cdis-1!tanner, Organization: CompuData, Inc.
uunet.UU.NET!fcsys!rab!robert, Organization: Robert A. Bullington
mike.wescott at ncrcae.Columbia.NCR.COM, Organization: NCR Corp
Martin Weitzel, martin at mwtech.UUCP, Organization: MIKROS Systemware
Roe Peterson, roe at sobeco.com, roe at unibase.uucp
Chip Rosenthal <chip at chinacat.Unicom.COM>, Organization: Unicom Systems Development, Inc.
Kenneth Herron <e.ms.uky.edu!kherron>
As it turned out it must be a flow control problem somewhere on the line
and/or speedbuffering in the modem.
Briefly:
> Somewhere in the comm channel - either in a modem or upon a serial
> line - XON/XOFF handshaking is enabled.
> Chip Rosenthal
To uflorida!ki4pv!cdis-1!tanner, Mike Wescott, Chip Rosenthal, Roe Peterson,
Kenneth Herron:
Indeed, all devices have xon/xoff flow control enabled, and the
remote modem is connected to a DECserver200/MC. (Not mentioned in the
original posting >:-( , 'coz it's so transparent :-)
(The Chat script connects through the server to the Ultrix MVAX2000).
I can at the server and at both modems disable xon/xoff and enable rts/cts
handshake but -pls don't flame- how do I this on the SCO Box and on Ultrix?
With stty -xon I disable xon/xoff at the ports, but does this imply enabling
rts/cts handshake ?
And: *how* could there be an rts/cts handshake over the Ethernet ?
(MVAX -- Server).
On the other hand: What are the side effects to the other Systems
in our VAX Cluster environment, which also use the modem via LAT devices, if
I disable all the way xon/xoff.
(Somewhere in the docs is said, DEC local serial ports only support xon/xoff.)
To Robert Bullington, Kenneth Herron
I use both modems with fixed speed 2400 bps, no buffering, no MNP.
This leads me to another question: Should MNP or V42 be turned off, because
uucp uses its own 'g' protocol?
To Martin Weitzel:
I don't know of any I/O-Mapping, I only know mapkey for the keyboard.
Was meinst Du damit?
I would also be glad to know where to RTFM, the Ultrix Docs are quite poor,
and O'Reilly I've read from the first to the last page.
So, thank you very much again.
Dietmar
--
weis at netmbx.UUCP | Dietmar Weis DONOP CONSULT GmbH
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