freebsd-dev/share/man/man4/ng_rfc1490.4
Jens Schweikhardt c1f3e4bf21 Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...

Reviewed by:	Silence from cvs diff -b
MFC after:	7 days
2001-07-14 19:41:16 +00:00

116 lines
3.8 KiB
Groff

.\" Copyright (c) 1996-1999 Whistle Communications, Inc.
.\" All rights reserved.
.\"
.\" Subject to the following obligations and disclaimer of warranty, use and
.\" redistribution of this software, in source or object code forms, with or
.\" without modifications are expressly permitted by Whistle Communications;
.\" provided, however, that:
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.\" copyright notice above and the following disclaimer of warranties; and
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.\" Communications, Inc. trademarks, including the mark "WHISTLE
.\" COMMUNICATIONS" on advertising, endorsements, or otherwise except as
.\" such appears in the above copyright notice or in the software.
.\"
.\" THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
.\" TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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.\" Author: Archie Cobbs <archie@FreeBSD.org>
.\"
.\" $FreeBSD$
.\" $Whistle: ng_rfc1490.8,v 1.4 1999/01/25 23:46:27 archie Exp $
.\"
.Dd January 19, 1999
.Dt NG_RFC1490 4
.Os
.Sh NAME
.Nm ng_rfc1490
.Nd RFC 1490 netgraph node type
.Sh SYNOPSIS
.Fd #include <netgraph/ng_rfc1490.h>
.Sh DESCRIPTION
The
.Nm rfc1490
node type performs protocol encapsulation, de-encapsulation, and
multiplexing according to RFC 1490 (which has since been updated by RFC 2427).
This particular type of encapsulation is often used on top of frame relay
DLCI channels.
.Pp
The
.Dv downstream
hook is used to transmit and receive encapsulated frames. On the other
side of the node, the
.Dv inet
and
.Dv ppp
hooks are used to transmit and receive raw IP frames and PPP frames,
respectively. PPP frames are transmitted and received according to
RFC 1973; in particular, frames appearing on the
.Dv ppp
hook begin with the PPP protocol number.
.Pp
Typically the
.Dv inet
hook is connected to the
.Dv inet
hook of an
.Xr ng_iface 4
node.
.Sh HOOKS
This node type supports the following hooks:
.Pp
.Bl -tag -width foobarbazum
.It Dv downstream
Connects to the RFC 1490 peer entity.
.It Dv inet
Transmits and receives raw IP frames.
.It Dv ppp
Transmits and receives PPP frames.
.El
.Sh CONTROL MESSAGES
This node type only supports the generic control messages.
.Sh SHUTDOWN
This node shuts down upon receipt of a
.Dv NGM_SHUTDOWN
control message, or when all hooks have been disconnected.
.Sh BUGS
Not all of RFC 1490 is implemented.
.Sh SEE ALSO
.Xr netgraph 4 ,
.Xr ng_frame_relay 4 ,
.Xr ng_iface 4 ,
.Xr ngctl 8
.Rs
.%A C. Brown
.%A A. Malis
.%T "Multiprotocol Interconnect over Frame Relay"
.%O RFC 2427
.Re
.Rs
.%A W. Simpson
.%T "PPP in Frame Relay"
.%O RFC 1973
.Re
.Sh HISTORY
The
.Nm
node type was implemented in
.Fx 4.0 .
.Sh AUTHORS
.An Julian Elischer Aq julian@FreeBSD.org