From owner-freebsd-questions@freebsd.org Sun Oct 11 13:45:40 2015 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 0B074A0FF7B for ; Sun, 11 Oct 2015 13:45:40 +0000 (UTC) (envelope-from terje@elde.net) Received: from rand.keepquiet.net (keepquiet.net [144.76.43.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "keepquiet.net", Issuer "PositiveSSL CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C718D7CA for ; Sun, 11 Oct 2015 13:45:38 +0000 (UTC) (envelope-from terje@elde.net) Received: from [10.130.11.103] (cm-84.210.87.28.getinternet.no [84.210.87.28]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: terje@elde.net) by rand.keepquiet.net (Postfix) with ESMTPSA id 934A9D65; Sun, 11 Oct 2015 13:39:04 +0000 (UTC) References: In-Reply-To: Mime-Version: 1.0 (1.0) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Message-Id: <9D927A93-DB81-4423-B556-31120DA3136B@elde.net> Cc: FreeBSD - X-Mailer: iPhone Mail (10B500) From: Terje Elde Subject: Re: Ethernet Errors Date: Sun, 11 Oct 2015 15:39:03 +0200 To: Doug Hardie X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Oct 2015 13:45:40 -0000 On 11. okt. 2015, at 12:14, Doug Hardie wrote: > Any ideas? Seems you ruled out a lot of things. I'm wondering if it could be PSU or EMI= ? Also, is the asymetry in errors based on number of errors, or percentage of e= rrors of total packets in the direction? Could the difference be explained by one interface receicing more, and the o= ther sending more, and the error percentage thus being about the same? > Unfortunately these servers are a 3 hour drive away at 1 AM. It=E2=80=99s= considerably longer during the day as I have to drive through Los Angeles. Next time you're there, probably doesn't hurt to check the wiring. Do both r= un close to anything magnetic, such as PSUs, wall warts etc? Oh, and in situations like these, I try to work in a habit of taking picture= s. Nice to have as a reference, without having to visit.=20 Terje=