From owner-freebsd-net@FreeBSD.ORG Wed Sep 17 02:46:19 2014 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3EFC6506 for ; Wed, 17 Sep 2014 02:46:19 +0000 (UTC) Received: from mail-ob0-f176.google.com (mail-ob0-f176.google.com [209.85.214.176]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 00734171 for ; Wed, 17 Sep 2014 02:46:18 +0000 (UTC) Received: by mail-ob0-f176.google.com with SMTP id wo20so592683obc.7 for ; Tue, 16 Sep 2014 19:46:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:content-type:mime-version:subject:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=Cg60ckZuHaI+olUuHxarSEaG6jlXUPV+staFa5rZHgo=; b=iMPu9zidK8q/SfGJRtzdoLnSx+e1UPR9GytPmbfTT+I6csGicD7cjOZC0VotLQ8B8b 6oXkf4CxCxp8f9QuTPn5bZ/Y29Ue+2ArhDn2KaI7dKy5cSIHrKEqeF2nbHidaJbToYFz plV349xXwlmKT+4M2zFpJF9KtCeIVRxoYjbI+Y2+I31ytZqWWQhVh/KxwAFwxNv2OZb2 JiU4ziWQbkC+l7Y4vIqamNp4XJW5orLcKYQJnrxXHkEUAgPWvW64e0sJ+V/GxO+zPirk fTbQ66w5Fy+/mUwZ3gx4eNrxjUk+5E4RzvR7+EhW/xUC/Z5BJ7AaIOIiF7iPJflAlkJ2 DERg== X-Gm-Message-State: ALoCoQmlGjQInqFLMNNqws+tZGq+PATbIjRI5dC510Y64bS2FhJxopohyw05uqRfRO/0QJXMpBby X-Received: by 10.60.92.133 with SMTP id cm5mr22848228oeb.12.1410915560639; Tue, 16 Sep 2014 17:59:20 -0700 (PDT) Received: from ?IPv6:2610:160:11:33:3499:d385:ded3:267c? ([2610:160:11:33:3499:d385:ded3:267c]) by mx.google.com with ESMTPSA id x5sm9776319oec.14.2014.09.16.17.59.19 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 16 Sep 2014 17:59:19 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 8.0 \(1974.6\)) Subject: Re: jme interface bounces up and down, up and down.... From: Jim Thompson In-Reply-To: <201409162353.RAA00829@mail.lariat.net> Date: Tue, 16 Sep 2014 19:59:18 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: <27534E06-CC9B-4A4D-8A7A-9C68ECB760BC@netgate.com> 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> <201409162353.RAA00829@mail.lariat.net> To: Brett Glass X-Mailer: Apple Mail (2.1974.6) Cc: pyunyh@gmail.com, questions@freebsd.org, Chris Hill , net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Sep 2014 02:46:19 -0000 > On Sep 16, 2014, at 6:53 PM, Brett Glass 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