From: PierrotLafouine <pierrotlafouine@gmail.com>
To: linux-ppp@vger.kernel.org
Subject: Question on pppd / reset?
Date: Fri, 28 May 2010 15:06:48 +0000 [thread overview]
Message-ID: <4BFFDC08.9070103@gmail.com> (raw)
Hi
If I'm not on the good forum, or too specific with my questions, please
provide me the address of the good mailing list/forum.
We have an application using ppp with a GPRS modem. The system is
actually in the field and working 24/7 for several months.
Carrier disconnected modem often (IP renewal, maintenance etc.) and
modem alway reconnected correctly, except last time. I went onsite for
debugging and try different commands to make modem reconnect
(ifdown/ifdown, poff/pon, shutdown -r etc...) All commands failed to
reconnect the modem. I had to pull the plug to make it connect.
My question is about reset. I would like to understand more the stack
of the system, and why it failed to reconnect. The GPRS modem is
connected trought full RS-232 signals, and RS-232 chips is on an ISA
bus. How does ppp deal with this kind of hadware configuration ? I
read ppp deal with modem reset, but how ? Any idea what I should look
at to understand more the root cause of this failure ?
Thanks,
Pierre
next reply other threads:[~2010-05-28 15:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-28 15:06 PierrotLafouine [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-05-28 15:48 Question on pppd / reset? James Carlson
2010-05-28 17:02 ` PierrotLafouine
2010-05-28 17:28 ` James Carlson
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