Re: sz and rz troubles, still!

matthew gream (M.Gream@nospam.uts.edu.au)
Wed, 06 Sep 1995 08:37:45 +1000

`Billy Doran' wrote:

> Yes i did, and the same thing happens : i get "Carrier not
> present...blah...blah" And then i get a wierd Hexadecimal string.

(firstly: I skipped this thread until now, so my apologies if I am
repeating)

This looks as though it may be a flow control problem, either at your
end or with the terminal server you're gating though. Under interactive
traffic, as with a normal login session, you usually won't see any
problems as there are sufficient quiet periods that allow buffers to
drain. But once you flood your bandwidth, something will give and
disconnect -- the terminal server + modem, modem + modem, or your
computer + modem. The former is the most likely candidate.

This may not be what is causing your problem, but it is something that
does occur, and your symptoms fit. There's a quick way you can test:
login as per normal, change to a directory that has a lot of children
and execute a recursive listing (ls -lR). If you find your connection
drops during this, then you can be fairly sure it is a flow control
problem. Fixing it is left as an exercise for the reader :-).

matthew.

--
Matthew Gream <m.gream@nospam.uts.edu.au> (work: matthewg@nospam.jtec.com.au)