From owner-freebsd-questions@freebsd.org Thu Aug 3 11:49:08 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 12E0BDB2E01 for ; Thu, 3 Aug 2017 11:49:08 +0000 (UTC) (envelope-from luzar722@gmail.com) Received: from mail-it0-x22c.google.com (mail-it0-x22c.google.com [IPv6:2607:f8b0:4001:c0b::22c]) (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 CCFA273D65 for ; Thu, 3 Aug 2017 11:49:07 +0000 (UTC) (envelope-from luzar722@gmail.com) Received: by mail-it0-x22c.google.com with SMTP id 77so7855335itj.1 for ; Thu, 03 Aug 2017 04:49:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-transfer-encoding; bh=4EXVPklFc69FL+Ja/UdIf7QxYIeaeImYDyPyMY0iJu8=; b=bNvU93Z4wlfEmZEMMxPh41jc/qq3AYYKRgEEvs8RRU3bc9V50/l4pHT0VPRXZElNZu eno7tX7zCuZ3Y+Dmelf9JJA6rvYhY3vn1iVKqRaddbeSLLJn8XzTC9ph2acphMZORMj9 BMdnGaDPI1SJ7oBCFpe7h611ny7mj+4sRWvtT0hiOzFBJWKRkAUre5vuezN3qCl0BLYQ aHn/8GRB0eBa0fwkwMo0SnOgjH+GsHdxissuDsniz6HoaSvW5AIUJgeSTe7Xq+ABkEbZ I2F4/Rh7CKSuJx3D1zeOkX9YKIiD4XZtniITTkWq/Ovw3Wm7uXjvrUcHQ7BGezRdzAAT 60oA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-transfer-encoding; bh=4EXVPklFc69FL+Ja/UdIf7QxYIeaeImYDyPyMY0iJu8=; b=UN+SpFEY0aMXJJDmrQFx2ku4C1oyIwV4TUP7UrOCfxRkB8+DtpsLkg921pliPIEIRP BeE+8nBy3BNDALGmwGCQuftLSm3ARThuK6h2J61VOsGhAQTCFfK5Vug3JUCKzdsyKdbi UbyPS3u2lU5cm93rKeD4pi6jJGg8YDV/fnsQ2kob+dT+AOM0WGZdchOgL/fsPTcHLxz1 uWFnZB8QzCJ7Hxe/KM8x0PiIiRx8yHrWU4LlURyN7KyUm1MgbwU6tZgCAjZwA7BnurxF lyn03Ye2LzBnwhDkOJWqCmWgvDazvugNCBSg9R+SFwpCIaovlmG+WDp/aYiMF7pCKNHy Metg== X-Gm-Message-State: AIVw112bjUgIUU8ZhfsNrhJ+LVieux0a/xNF/yUkRDK3DpxCN8/xZVFW 4gEizv3qoBuiuA== X-Received: by 10.36.74.212 with SMTP id k203mr1404087itb.14.1501760946805; Thu, 03 Aug 2017 04:49:06 -0700 (PDT) Received: from [192.168.1.103] (cpe-65-25-53-217.neo.res.rr.com. [65.25.53.217]) by smtp.googlemail.com with ESMTPSA id b83sm15337499iod.35.2017.08.03.04.49.06 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 03 Aug 2017 04:49:06 -0700 (PDT) Message-ID: <59830DB1.2070008@gmail.com> Date: Thu, 03 Aug 2017 07:49:05 -0400 From: Ernie Luzar User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: Tim Daneliuk CC: "freebsd-questions@freebsd.org" Subject: Re: Adapter em0 link state changing down/up on 11.1 References: <59821410.2060309@gmail.com> <24d2160d-b414-7194-d512-79dadc087640@tundraware.com> In-Reply-To: <24d2160d-b414-7194-d512-79dadc087640@tundraware.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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: Thu, 03 Aug 2017 11:49:08 -0000 Tim Daneliuk wrote: > On 08/02/2017 01:04 PM, Ernie Luzar wrote: >> Hello List; >> >> Running 11.1 and em0 is a Intel Pro/1000. >> I keep getting these messages >> Kernel: em0: Link state changed to Down >> Kernel: em0: Link state changed to Up >> >> This happens 3 to 8 times during a 24 hour period. >> em0 is connected to the public internet and this down/up cycle >> disconnects all browser connections that are active. >> >> What can I do to fix this? > > I seem to recall seeing this same problem on a 9.x or 10.x system. In > my case the fix was to replace a failed component. For the life of > me I cannot recall whether it was the NIC, the cable, or the switch. As > a first step, at least, I'd swap cables. If that doesn't fix it, move > it to a different switch port - or better still, a different switch > entirely. > For the archive record I replaced the cable between the gateway server and the Time Warner cable modem and the down/up messages have not happened in the last 24 hours.