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From: tnixon@hayes.uucp
Newsgroups: comp.dcom.modems
Subject: Re: LD received?
Message-ID: <3910.280498ee@hayes.uucp>
Date: 11 Apr 91 17:12:14 GMT
References: <1991Apr10.035712.4092@ux1.cso.uiuc.edu>
Organization: Hayes Microcomputer Products, Norcross, GA
Lines: 26

In article <1991Apr10.035712.4092@ux1.cso.uiuc.edu>,
alanlevy@ux1.cso.uiuc.edu (Alan Levy) writes: 

> I have a USR Robotics Dual-standard 9600 Courier.
> I connect to another v42bis modem.
> But ever once in a while the modem disconnect, when I query as to the reason
> it disconnected, it says because LD received. 
> What exactly does LD received mean?
> I do have call waiting, but I disable it before dialing.

It has nothing to do with Call Waiting.  "LD" refers to the "Link 
Disconnection" frame in MNP.  They probably haven't updated the 
documentation to reflect the fact that the frame is called "DISC" in 
LAPM instead of LD.  Anyway, what it means is that the other modem 
sent a request to disconnect the line.  This could be caused by a 
variety of things:  the other computer told the modem to disconnect, 
the other modem detected a protocol violation, there were too many 
attempts to send a frame (due to repeated line errors), etc.

	-- Toby

-- 
Toby Nixon, Principal Engineer    | Voice   +1-404-840-9200  Telex 151243420
Hayes Microcomputer Products Inc. | Fax     +1-404-447-0178  CIS   70271,404
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