Date: Tue, 16 Sep 2014 19:59:18 -0500 From: Jim Thompson <jim@netgate.com> To: Brett Glass <brett@lariat.net> Cc: pyunyh@gmail.com, questions@freebsd.org, Chris Hill <chris@monochrome.org>, net@freebsd.org Subject: Re: jme interface bounces up and down, up and down.... Message-ID: <27534E06-CC9B-4A4D-8A7A-9C68ECB760BC@netgate.com> In-Reply-To: <201409162353.RAA00829@mail.lariat.net> References: <201409141629.KAA29705@mail.lariat.net> <20140915060819.GA967@michelle.fasterthan.com> <201409151447.IAA08325@mail.lariat.net> <20140916083749.GA988@michelle.fasterthan.com> <201409161727.LAA25854@mail.lariat.net> <alpine.BSF.2.00.1409161923050.72457@tripel.monochrome.org> <201409162353.RAA00829@mail.lariat.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Sep 16, 2014, at 6:53 PM, Brett Glass <brett@lariat.net> wrote: >=20 > At 05:27 PM 9/16/2014, Chris Hill wrote: >=20 >> On Tue, 16 Sep 2014, Brett Glass wrote: >>=20 >>> So, what is the best solution? I cannot throw out the machine, and >>> because I am using a VLAN switch to multiplex the port to three LANs >>> I do not want to reduce the speed to 100 Mbps. Ideas? >>=20 >> The man page mentioned says that if "the link partner enabled the = IEEE 802.3az Energy Efficient Ethernet feature, the controller will not = be able to establish a 1000baseT link." Maybe disable 802.3az on that = port, if you can. Just a thought. >=20 > It's a Netgear "green" switch, model GS105E. It has no way to disable = 802.3az. The linux jmebp-1.0.8.5 driver from the JMicron website=20 ftp://driver.jmicron.com.tw/Ethernet/Linux/jmebp-1.0.8.5.tar.bz provides a workaround for the issue. It adds the delay_time module = parameter, which causes the network card to attempt a fall back to 100 = mbps after it cannot connect for several seconds (by default 11). With = this, link detection =E2=80=9Cworks=E2=80=9D, but the connection is = 100Mbps. This is likely the reason the "problem didn't seem to occur = with the bundled Linux distro.=E2=80=9D Jim
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?27534E06-CC9B-4A4D-8A7A-9C68ECB760BC>