(PM) User-Request Disconnect

Charles Scott (cscott@freeway.net)
Wed, 12 Nov 1997 22:13:12 -0500 (EST)

I noticed that what I would consider a "Lost Carrier", unplugging the
phone line from the modem, results in the PM3 reporting a "User-Request"
termination cause. I asked Livingston Tech support about this and they
confirmed that this is the correct termination cause to report for that
type of disconnection. I was frankly a bit surprised by that response,
but apparently I'm missinterpreting what a "Lost-Carrier" termination
should be. However the RADIUS user's manual has the two following
definitions...

Lost-Carrier
Session terminated when the modem dropped DCD. This can indicate any of
the following: the user or his modem hung up the phone from their end (in
which case there is no problem), the line was dropped, the line took a noise
hit too severe for the modem to recover from, or the local modem dropped DCD
for some other reason.

User-Request
Dial-in PPP client requested that we terminate the connection. This
message is expected from a proper PPP client termination.

(see http://www.livingston.com/Tech/Docs/RADIUS/guide/7account.shtml)

In any case, it was enlightening to find this out because I think I've
been telling some customers that their software is disconnecting them
when in fact it may be something else. This also explains why I've been
running User-Request disconnect percentages up in the high 90's.

Chuck Scott

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