1993-08-01 11:32:48 +04:00
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.\" Copyright (c) 1983, 1991 The Regents of the University of California.
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.\" All rights reserved.
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1993-03-21 12:45:37 +03:00
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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1993-08-01 11:32:48 +04:00
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.\" from: @(#)ddn.4 6.5 (Berkeley) 3/27/91
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.\" $Id: ddn.4,v 1.2 1993/08/01 07:36:33 mycroft Exp $
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1993-03-21 12:45:37 +03:00
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.\"
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1993-08-01 11:32:48 +04:00
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.Dd March 27, 1991
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1993-03-21 12:45:37 +03:00
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.Dt DDN 4 vax
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.Os BSD 4.3
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.Sh NAME
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.Nm ddn
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.Nd
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.Tn DDN
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Standard Mode
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.Tn X.25
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.Tn IMP
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interface
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.Sh SYNOPSIS
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.Cd "device ddn0 at uba0 csr 166740 vector ddnintr"
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.Sh DESCRIPTION
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The
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.Nm ddn
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device provides a
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.Tn DDN
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Standard Mode
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.Tn X.25
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interface to an
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.Tn IMP
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using
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the
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.Tn ACC ACP625
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.Tn X.25
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board. It is normally used for connecting to
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the Defense Data Network
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.Pq Tn DDN .
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The controller itself is not accessible
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to users, but instead provides a network interface for the
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Internet Protocol described in
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.Xr ip 4 .
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.Sh DIAGNOSTICS
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.Bl -diag
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.It ddn%d: not alive.
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The initialization routine was entered even though the device
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did not autoconfigure. This indicates a system problem.
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.Pp
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.It ddn%d: failed getting UBA resources for lcn %d."
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Insufficient
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.Tn UNIBUS
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resources existed to initialize the device.
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This is likely to be a shortage of
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.Tn UNIBUS
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mapping registers.
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.Pp
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.It ddn%d: couldn't get X25 init buffer.
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This indicates that an
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.Em mbuf
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could not be allocated for sending the initialization message to the
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.Tn ACP Ns 625.
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.Pp
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.It DDN: illegal X25 address length!
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.It DDN: illegal X25 address format!
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These errors indicate a problem with the called
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.Tn X.25
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address received
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from the
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.Tn IMP
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on an incoming call.
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.Pp
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.It X25 RESET on lcn = %d.
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This indicates that an unexpected
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.Tn X.25
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.Tn RESET
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was received on the
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indicated
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.Tn LCN .
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.Pp
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.It X25 INTERRUPT on lcn = %d, code = %d.
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This indicates that an unexpected
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.Tn X.25
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.Tn INTERRUPT
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Packet was received on the
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indicated
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.Tn LCN .
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.Pp
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.It ddn%d: failed to get supr msg bfr!
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This indicates that an
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.Em mbuf
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could not be allocated for sending a supervisor message to the
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.Tn ACP625 .
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.El
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.Pp
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Any other error message from
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.Ql ddn%d:
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indicates a serious error
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detected by either the driver or the
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.Tn ACP Ns 625
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firmware.
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.Sh SEE ALSO
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.Xr netintro 4 ,
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.Xr ip 4
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.Sh HISTORY
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The
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.Nm
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interface appeared in
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.Bx 4.3 .
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