1.\" $NetBSD: ddn.4,v 1.4 1997/10/19 12:58:54 mrg Exp $ 2.\" 3.\" Copyright (c) 1983, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" from: @(#)ddn.4 8.1 (Berkeley) 6/5/93 35.\" 36.Dd June 5, 1993 37.Dt DDN 4 vax 38.Os BSD 4.3 39.Sh NAME 40.Nm ddn 41.Nd 42.Tn DDN 43Standard Mode 44.Tn X.25 45.Tn IMP 46interface 47.Sh SYNOPSIS 48.Cd "device ddn0 at uba0 csr 166740 vector ddnintr" 49.Sh DESCRIPTION 50The 51.Nm ddn 52device provides a 53.Tn DDN 54Standard Mode 55.Tn X.25 56interface to an 57.Tn IMP 58using 59the 60.Tn ACC ACP625 61.Tn X.25 62board. It is normally used for connecting to 63the Defense Data Network 64.Pq Tn DDN . 65The controller itself is not accessible 66to users, but instead provides a network interface for the 67Internet Protocol described in 68.Xr ip 4 . 69.Sh DIAGNOSTICS 70.Bl -diag 71.It ddn%d: not alive. 72The initialization routine was entered even though the device 73did not autoconfigure. This indicates a system problem. 74.Pp 75.It ddn%d: failed getting UBA resources for lcn %d." 76Insufficient 77.Tn UNIBUS 78resources existed to initialize the device. 79This is likely to be a shortage of 80.Tn UNIBUS 81mapping registers. 82.Pp 83.It ddn%d: couldn't get X25 init buffer. 84This indicates that an 85.Em mbuf 86could not be allocated for sending the initialization message to the 87.Tn ACP Ns 625. 88.Pp 89.It DDN: illegal X25 address length! 90.It DDN: illegal X25 address format! 91These errors indicate a problem with the called 92.Tn X.25 93address received 94from the 95.Tn IMP 96on an incoming call. 97.Pp 98.It X25 RESET on lcn = %d. 99This indicates that an unexpected 100.Tn X.25 101.Tn RESET 102was received on the 103indicated 104.Tn LCN . 105.Pp 106.It X25 INTERRUPT on lcn = %d, code = %d. 107This indicates that an unexpected 108.Tn X.25 109.Tn INTERRUPT 110Packet was received on the 111indicated 112.Tn LCN . 113.Pp 114.It ddn%d: failed to get supr msg bfr! 115This indicates that an 116.Em mbuf 117could not be allocated for sending a supervisor message to the 118.Tn ACP625 . 119.El 120.Pp 121Any other error message from 122.Ql ddn%d: 123indicates a serious error 124detected by either the driver or the 125.Tn ACP Ns 625 126firmware. 127.Sh SEE ALSO 128.Xr netintro 4 , 129.Xr ip 4 130.Sh HISTORY 131The 132.Nm 133interface appeared in 134.Bx 4.3 . 135