From: waverheu@vub.ac.be ("Verheulpen W.")
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: pktmux11/qvtnet27 compatability
Date: 15 Sep 92 15:07:54 GMT
Organization: The Internet

Hi all,
I am new to this list but I would like to jump right
into the discussion about the pktmux.
I received a beta copy 1.2 from the author to test because
I noticed quite some problems with version 1.1 and winqvt.
I have the following comments (& questions)
The mux seem to behave OK if one sticks to DOS and
running only 'normal' telnet or ftp sessions. However
the ncsa telbin rev 2.3b05 is not releasing the pktdrv
properly so that it is always busy even if yr back to DOS.
Sending a pktdrv /r (=reset) is not always able to reset
the pktdrv. Especially if the pktdrv is not the first one
in the row ie if a 'lower' int pktdrv is free then pktdrv
will always find the 'first' free one and not the busy one.
Chaining up seems to be poor ?!
If one runs pktmux with windows 3.1 the prog winqvt/net runs
OK but any other app (ncsa telbin; ftp ;etc) seem to suffer
very hard. It is almost impossible to pinpoint the problem.
Sometimes they run very, very slowly (ie one move every 5 min or so)
sometimes they lock up the system. You get less problems when
you run the apps 'full screen' than when you run them 'windowed'
It seems that the mux is not coping very well with the 386enh
mode of win 3.1 and the virtual machine environment.
More info would be welcome.
A further question is : has anyone of you an idea if it is
possible to combine the 'winpkt' shim together with the packet
driver in an attempt to patch this 386enh problem ?
Is there more info around about this 'winpkt' ? (Hello ? J Doupnik?
R Nelson ?)
Could any one mail me a possible pktmux setup that combines a working
winqvt/net & ncsa telnet ?
I made some batch file to find out which soft int a pktdrv is locking
when loaded through a batch file (under win3.1 & a pif file) that
runs a DOS app. This in order to be able to release & reset & unload
the specific pktdrv (pktdrv XX /r or /u). If run under win3.1 it loads
all right but sometimes the application flags that it cannot find
the packte driver, and when trying to quit & release the pktdrv I
always get the message that the pktdrv int I generated is not in my
current DOS session and that I have to release it with a 'pktdrv /rr
or /uu' switch. This makes me think the virtual DOS machines are not
handled the correct way although the doc on pktmux says it does.
When loading different windowed telnet sessions one sees int 63
allocated in every session and no session is able to deallocate it ???
Is it using the base page int's after all ?
If anyone is interested in the batch file I'll post it.
Sorry for this rather long chapter.
Have a day !
--
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Willy Verheulpen                            Systems Coordination
                   Institute for Molecular Biology
Brussels Free University                                 Belgium
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Newsgroups: comp.protocols.tcp-ip.ibmpc