Re: (PM) PM2 not resetting modem

Craig Baird (bairdc@xpressweb.com)
Fri, 12 Mar 1999 17:03:03 -0700

I had a similar problem when I bought my first Portmasters. A little
over a year ago, we switched to the PM25 from our old Xylogics
Microannex XL termservers. We were having a lot of problems with the
Microannexes locking up every couple of weeks. Xylogics (Bay Networks
now) couldn't figure it out, so finally in desperation we jumped into
the Portmaster world with two PM25s.

The only complaint I had with the PM25s was that they wouldn't reset the
modem after each call, and from what I could tell, can't be configured
to do so. I was used to this because my Microannexes did it. After I
made the switch to the PM25s, I began to realize we were getting a lot
of modems that would hang on hook (ring, no answer). These modems were
all Practical Peripherals 33.6 minitowers. Our Practical 28.8
minitowers were fine, as were our Supra 28.8s and our Hayes 28.8 modems.
The problem was only on the Practical 33.6 models. I contacted support,
and although they tried to help, it seemed that the Practical 33.6 modem
just needed a reset after taking a few calls. I finally ended up having
to write a Perl script to reset the modems. It ran as a cron job that
connected to the PM25s every 5 minutes, and did a 'show ses'. If any of
the ports had been released since the last run, it would reset that
modem.

Craig
Xpressweb Internet Services
bairdc@xpressweb.com
http://www.xpressweb.com

> On Fri, 12 Mar 1999, Jeff Greer wrote:
>
> :I have seen a problem with my PM2 3.7.2.
> :Simply stated, it does not send a reset command to the modem after using
> :Dialout/IP to call out over the network. I put a protocol analyzer on one of
> :my modems to verify this, and the problem was confirmed.
> :
> :Any ideas as to why this is?
>
> The portmaster will NOT reset the port each time DTR is dropped. Its only
> on a bootup or a reset.
>
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