95 lines
3.2 KiB
Groff
95 lines
3.2 KiB
Groff
.\"
|
|
.\" Copyright (c) 1996 Jonathan Stone.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by Jonathan Stone.
|
|
.\" 3. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software without specific prior written permission
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $NetBSD: le.4,v 1.1 1996/08/11 02:29:11 jonathan Exp $
|
|
.\"
|
|
.Dd August 6, 1996
|
|
.Dt LE 4 pmax
|
|
.Os NetBSD 1.2
|
|
.Sh NAME
|
|
.Nm le
|
|
.Nd
|
|
DECstation AMD 7990 LANCE ethernet interface
|
|
.Sh SYNOPSIS
|
|
.Cd "le? at mainbus with le_pmax" (3100 baseboard)
|
|
.Cd "le*? at tc with le_tc" (5000/200 baseboard)
|
|
.Cd "le? at ioasic with le_ioasic" (ioasic baseboard)
|
|
.Cd "le* at tc? with le_tc" (TC option cards)
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provies access to a 10Mb/s Ethernet via the
|
|
.Tn AMD
|
|
7990
|
|
.Tn LANCE
|
|
Ethernet chip. All
|
|
.Tn LANCE
|
|
interfaces on
|
|
.Tn DECstations ,
|
|
are supported. as are interfaces on
|
|
.Tn "Alpha AXP"
|
|
machines with a
|
|
.Tn TurboChannel
|
|
bus.
|
|
.Pp
|
|
The
|
|
.Nm driver employs the Address Resolution Prootocol described
|
|
in
|
|
.Xr arp 4
|
|
to map between Internet and Ethernet addresses on the local
|
|
network. Selective recption of multicast Ethernet frames is provided
|
|
by a 64-bit mask; multicast destination addresses are hashed to a
|
|
bit entry using the Ethernet CRC function.
|
|
.Pp
|
|
No support is provided for switching between media ports. The
|
|
DECstation 3100 provides both AUI and BNC (thinwire or 10base2) connectors.
|
|
Port selection is via a manual switch and is not software configurable.
|
|
The
|
|
.Tn DECstation
|
|
model 5000/200
|
|
.Tn PMAD-AA
|
|
baseboard device provides only a BNC connector, and the
|
|
.Tn PMAD-AA
|
|
.Tn TurboChannel
|
|
option card provides only an AUI port.
|
|
.Pp
|
|
.Sh SEE ALSO
|
|
.Xr intro 4 ,
|
|
.Xr inet 4 ,
|
|
.Xr arp 4
|
|
.Sh HISTORY
|
|
This
|
|
.Nm
|
|
driver is derived from a
|
|
.NM
|
|
driver that first appeared in
|
|
.Bx 4.4 .
|
|
The multiple bus attachment support first appeared in
|
|
.Nx 1.2 .
|