.\"     $NetBSD: be.4,v 1.1 2004/03/31 07:20:48 mrg Exp $
.\"
.\" Copyright (c) 1998 Jason L. Wright (jason@thought.net)
.\" All rights reserved.
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.\" from: OpenBSD: be.4,v 1.13 2003/06/02 18:51:34 jason Exp
.\"
.Dd March 31, 2004
.Dt BE 4
.Os
.Sh NAME
.Nm be
.Nd SPARC Fast Ethernet interface
.Sh SYNOPSIS
.Cd "qec* at sbus? slot ? offset ?"
.Cd "be* at qec?"
.Sh DESCRIPTION
The
.Nm
interface provides access to the 10Mb/s and 100Mb/s (half duplex only)
Ethernet networks.
The
.Nm
is found on the Sun 10/100 Mbit Ethernet boards
(Sun part number SUNW,501-2450).
.Pp
Each of the host's network addresses
is specified at boot time with an
.Dv SIOCSIFADDR
.Xr ioctl 2 .
The
.Nm
interface employs the address resolution protocol described in
.Xr arp 4
to dynamically map between Internet and Ethernet addresses on the local
network.
.Pp
The
.Nm
is not capable of link autonegotiation, so a media type must be specified
with
.Xr ifconfig 8 .
The supported media types are:
.Bl -tag -width xxxxxxxxxx -offset indent
.It media 100baseTX
Use 100Mbps, half duplex
.It media 10baseT
Use 10Mbps, half duplex
.El
.Sh SEE ALSO
.Xr arp 4 ,
.Xr ifmedia 4 ,
.Xr inet 4 ,
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr sbus 4 ,
.Xr ifconfig 8
.Sh HISTORY
Support for the
.Nm
first appeared in
.Nx 1.4 .