Date: Mon, 19 Jan 1998 10:51:40 -0600 (CST) From: Kyle Mestery <mestery@winternet.com> To: freebsd-chat@FreeBSD.ORG Subject: Link light on ethernet cards Message-ID: <Pine.GSO.3.96.980119104936.23406A-100000@tundra.winternet.com>
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I have a question related to ethernet links that I thought someone on this list might know. When you plug an RJ45 link into a hub, what makes the link light come on? Is it something to do with the physical layer, or the MAC chip, or what? I was just curious as to how the link light determines a link has been established. Thanks. Kyle Mestery StorageTek's Network Systems Group 7600 Boone Ave. N., Minneapolis, MN 55428 mesteka@anubis.network.com, mestery@winternet.com FreeBSD hope.winternet.com 3.0-CURRENT FreeBSD 3.0-CURRENT #0: Thu Dec 11 21:35:02 CST 1997 mestery@hope.winternet.com:/usr/src/sys/compile/HOPE i386
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