From owner-freebsd-questions@freebsd.org Tue Oct 31 17:05:42 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E68C3E5EE25 for ; Tue, 31 Oct 2017 17:05:42 +0000 (UTC) (envelope-from kent.kuriyama@gmail.com) Received: from mail-wr0-x229.google.com (mail-wr0-x229.google.com [IPv6:2a00:1450:400c:c0c::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 889F08163B for ; Tue, 31 Oct 2017 17:05:42 +0000 (UTC) (envelope-from kent.kuriyama@gmail.com) Received: by mail-wr0-x229.google.com with SMTP id u40so16566440wrf.10 for ; Tue, 31 Oct 2017 10:05:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=81qoCxG32J2BLIqnI8PPVLANiozQ3FeIrwGK0dXQ+ho=; b=Ba8ChR+kt8B9/WsirCMFxFUmLu3jO1CFytSm5OqdqMEzA+tEIT1B0XmE2BNOmdO0rp fIet9yiE31QM+t8T52Pz/ZYMBVVZ+pzE3w9oBBAYkkk/nFtyJUmbeva9iSeph6z1oH95 APB3gE3XzxYpRy9pfFV1TvEIPeJsCW5Qpz6AnC5fnnMfSVswUw9AHs4Ve1P8/LeNZ+yX elZ2huL/8YGL5XFIHtRkc4g+stAN5GEasUIQhxQOCLfM9ZgA/nPSDT1iVNtzP9XTQD6C HTwUVRRO8obZQhuqw1WX3j/J5IBt5nMKsL9lGnT5i1S9lvk70f+Wh8E/aOLOyo6tbvyq ejbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=81qoCxG32J2BLIqnI8PPVLANiozQ3FeIrwGK0dXQ+ho=; b=lgq+sTi993sO0i83KMq0+E8I7pjCB3NXMz0KTTsj29bSvSwUUPNIyqQsfNCRHHITVq BfeSg6fzHTWilP8b5MU8hCH5/cDCUYeXqTjhGtbf/mZylx6R1WepIusEdR3iaHafWjau G1i/SDOhPcTeNFNXDvrn7QQzPn5keNpfk9fQSaxbQF81DZ9UPaucO7827ucPjOwxivJI 6nR2Mebpe8SdVQdv7+C5G5ihM3Zif0YZHdc17R+tjGRNUhKvYCtjIRkP8vha1nzk1N/9 2mDYeP/RgS2EJC5x2AFe2btny+f8BDgOOHWl/HbYBak4lGqqX3aXSJ0t2i0/vIopRkfq 34aA== X-Gm-Message-State: AMCzsaWCKX4oi/7wLkKH6T14Flwh2N6wDAcs91nXOYIDZUAs7PAEpRV/ kBBBG+IbGhPV9xIRKQptB7vkFD6jkTUdaVrKLtk= X-Google-Smtp-Source: ABhQp+R6ZJKvmo7GS6Ph3wu0QvNbSuHenVwYcFA2GKO0yXoxn2dEpUwdAwudD57Ep/IxEvLmaP2tKuElFRMkrolM2Ag= X-Received: by 10.223.135.90 with SMTP id 26mr2350809wrz.114.1509469540651; Tue, 31 Oct 2017 10:05:40 -0700 (PDT) MIME-Version: 1.0 Received: by 10.28.197.196 with HTTP; Tue, 31 Oct 2017 10:05:40 -0700 (PDT) In-Reply-To: <6ea04a6e-0c25-16e4-8007-8b647e473813@infracaninophile.co.uk> References: <59F895A5.1040809@gmail.com> <6ea04a6e-0c25-16e4-8007-8b647e473813@infracaninophile.co.uk> From: Kent Kuriyama Date: Tue, 31 Oct 2017 07:05:40 -1000 Message-ID: Subject: Re: Gigabit Ethernet adapter problem To: Matthew Seaman Cc: FreeBSD Questions Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Oct 2017 17:05:43 -0000 I had the same problem in which a supposedly GigE connection would negotiate down to 100 Mbs. The problem as a bad NIC on my side. I have also seen 100 Mbs speeds when the jumper cable that I used was not up to par. On Tue, Oct 31, 2017 at 5:43 AM, Matthew Seaman < m.seaman@infracaninophile.co.uk> wrote: > On 31/10/2017 15:24, Ernie Luzar wrote: > > > > em - Intel(R) PRO/1000 Gigabit Ethernet adapter driver > > > > The boot messages show the Gigabit Ethernet adapter is correctly > > identified at boot time as shown below. > > > > em0: port 0xf080-0xf09f > > mem 0xf7d00000-0xf7d1ffff,0xf7d3c000-0xf7d3cfff irq 20 at > > device 25.0 on pci0 > > em0: Using an MSI interrupt > > em0: Ethernet address: d0:50:99:93:75:98 > > em0: netmap queues/slots: TX 1/1024, RX 1/1024 > > > > > > But after the system is up and running ifconfig em0 shows > > > > em0: flags=8843 > > metric 0 mtu 1500 > > options=4019b > TSO4,VLAN_HWTSO> > > ether d0:50:99:93:75:98 > > hwaddr d0:50:99:93:75:98 > > inet 10.0.10.2 netmask 0xff000000 broadcast 10.255.255.255 > > nd6 options=29 > > media: Ethernet autoselect (100baseTX ) > > status: active > > > > and we see that (100baseTX ) has been selected as default > > and it should be (1000baseTX ). > > > > How do I force the Ethernet adapter into Gigabit mode? > > This sort of down-grade is either because the switch port you've go the > machine plugged into is somehow set to negotiate to 100Mb/s, or else > you've got some dodgy cabling and consequently the system has backed off > to 100Mb/s because it can't sustain 1000Mb/s. > > Try looking at the output of 'netstat -i' -- if there are any errors > listed in the ierrs or oerrs columns, and particularly if they are > increasing over time. That indicates some sort of hardware problem, > usually due to a network cable having broken or been kinked or even tied > too tightly into a bundle. Start by swapping out the ethernet cable -- > it's cheap to replace. > > Cheers, > > Matthew > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org" >