From owner-FreeBSD-net-jp@jp.freebsd.org  Thu Apr 15 10:16:16 1999
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To: FreeBSD-net-jp@jp.freebsd.org
From: Yasuhiro SHIRASAKI <yasuhiro@awa.tohoku.ac.jp>
In-Reply-To: Your message of "Thu, 15 Apr 1999 08:26:45 +0900"
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Subject: [FreeBSD-net-jp 1499] Re: 21143-PC with cheap switch can't  work in full duplex mode
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$BGr:j$G$9!#(B

[ FreeBSD-uses-jp 339959 ] $B$N$h$&$K$7$J$/$F$b!"(Brc.conf $B$G(B

ifconfig_de0="inet XXX.XXX.XXX.XXX netmask 0xffffff00 media 100baseTX"

$B$H$9$k$@$1$G(B 100M HD $B$H$OG'<1$5$l$^$9!#$?$@!"(B

ifconfig_de0="inet XXX.XXX.XXX.XXX netmask 0xffffff00
media 100baseTX mediaopt full-duplex"

$B$H$7$F$b(B switch $B$N(B 100M $B%i%s%W$OE@Et$9$k$N$G$9$,!"(BFull-duplex $B%i%s%W$,(B
$B$D$+$J$$$N$G$9!#$=$N8e$K(B login $B$7$F(B ifconfig $B$G(B link down $B$5$;$?$j(B
link up $B$5$;$?$j$7$F$b>u67$OJQ2=$7$^$;$s!#(B

>SIA, SYM, NWay $B$K$D$$$F!"@bL@$7$F$$$?$@$1$^$;$s$+!)(B

SIA interface -  Performs 10-Mb/s physical layer network operators;
implements the AUI and 10BASE-T functions, including the Manchester
encoder and decoder functions.

SYM mode - Symbol interface to an external 100Mb/s front-end decoder
(ENDEC). In this mode the 21143 uses an on-chip physical coding
sublayer (PCS) and a scrambler/descrambler circuit to enable a low-
cost 100BASE-T implementation.

NWAY - Implements the IEEE 802.3 Auto-Negotiation algorithm of full-
duplex and half-duplex operation for 10Mb/s and 100Mb/s. See also
http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html

$B$H=q$$$F$"$j$^$9!#(B

http://support.intel.co.jp/design/network/new21/techdocs/278074.htm

$B$K@bL@$,$"$j$^$7$?!#(B

--
Yasuhiro SHIRASAKI : Experimental Particle Physics, JLC Team
Graduate School of Science, TOHOKU University 980-8578 Japan.
