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Date:      Wed, 12 Jan 2011 12:18:00 +0300
From:      Lev Serebryakov <lev@serebryakov.spb.ru>
To:        sthaug@nethelp.no
Cc:        freebsd-net@freebsd.org, ticso@cicely7.cicely.de, artem@aws-net.org.ua, ticso@cicely.de
Subject:   Re: Juniper e3k with ports limitied to 100Mbit and re NICs on MSI MoBo: problems with duplex negotiation (Hetzner host provider discard FreeBSD support due this bug)
Message-ID:  <7010235325.20110112121800@serebryakov.spb.ru>
In-Reply-To: <20110112.101414.41710948.sthaug@nethelp.no>
References:  <98602823.20110111225049@serebryakov.spb.ru> <20110111220314.GZ39356@cicely7.cicely.de> <165642603.20110112115208@serebryakov.spb.ru> <20110112.101414.41710948.sthaug@nethelp.no>

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Hello, Sthaug.
You wrote 12 =FF=ED=E2=E0=F0=FF 2011 =E3., 12:14:14:

> Manual configuration of FD for 100 Mbps is not in violation of the
> standards. What the standards say (for 100 Mbps) is that *if* you have
> one end configured for autonegotiation *and* the other end is manually
> configured for full duplex, the autoneg end should end up as half duplex
> (with the inevitable errors as a result). This may be counterintuitive,
> but it's the way the standard is written.
  Ok, and according to output of Linux's tools, autonegotiation is
disabled on port, and full-duplex is set manually. And FreeBSD ignmore
manual settings for re(4)/regphy(4) adapters. Here is a problem :(

> For Gigabit Ethernet autonegotiation is *required* by the standard, as
> other people already have pointed out.
  Yes, and it works, but cost additional money, which is comparable to
price of server itself :(

--=20
// Black Lion AKA Lev Serebryakov <lev@serebryakov.spb.ru>




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