km@emory.uucp (Ken Mandelberg) (02/18/88)
Is there any known problem in running UUCP over modems
in MNP mode?
I've noticed that UUCP consistantly fails between either a
Robotics or a Trailblazer talking to a Racal Vadic 2400 baud
modem in MNP mode. If I force the modems not to select MNP
mode there is no problem.
I am not talking about a problem during MNP negotiation at
the beginning of the connection. What I see is a bad header
maybe 5 minutes into the transfer, followed by lot of alarms.
My side keeps resending the last packet at the alarms, but
the other side looks not to be sending anything back. It
sounds a little bit like a flow control problem on the
remote side, but it doesn't happen unless MNP is on.
There is no problem in just shutting off MNP. I don't know how
much (if anything) it buys with UUCP. Its just one extra
complication in dealing with other sites, and I would like
it better if UUCP would work independently of whether MNP
is turned on or not.
Before I start staring at a data analyzer to run down the
problem, does anyone have any ideas?
--
Ken Mandelberg | {decvax,sun!sunatl,gatech}!emory!km UUCP
Emory University | km@emory BITNET
Dept of Math and CS | km@emory.ARPA ARPA,CSNET
Atlanta, GA 30322 | Phone: (404) 727-7963