From owner-freebsd-questions@freebsd.org Tue Oct 13 20:07:38 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 8D0CFA12C05 for ; Tue, 13 Oct 2015 20:07:38 +0000 (UTC) (envelope-from noc@hdk5.net) Received: from relay10.netenterprise.net (relay10.netenterprise.net [66.180.133.99]) by mx1.freebsd.org (Postfix) with ESMTP id 4FF3D104F for ; Tue, 13 Oct 2015 20:07:37 +0000 (UTC) (envelope-from noc@hdk5.net) X-Envelope-From: noc@hdk5.net X-Envelope-To: freebsd-questions@FreeBSD.org Received: From imail5.netenterprise.net (64.29.90.135) by relay10.netenterprise.net (MAILFOUNDRY) id 7y0MjHHdEeW7xgAl; Tue, 13 Oct 2015 19:09:32 -0000 (GMT) Received: from ponolei.intra.net [72.235.61.32] by IMAIL5.netenterprise.net with ESMTP (SMTPD-12.5.3.93) id 896200070e307640; Tue, 13 Oct 2015 09:04:26 -1000 Message-ID: <561D55B5.4080504@hdk5.net> Date: Tue, 13 Oct 2015 09:04:21 -1000 From: al plant User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.11) Gecko/20071128 FreeBSD/i386 SeaMonkey/1.1.7 MIME-Version: 1.0 To: Matthew Seaman CC: freebsd-questions@freebsd.org Subject: Re: Ethernet Errors References: <561A6621.6030105@FreeBSD.org> In-Reply-To: <561A6621.6030105@FreeBSD.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 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: Tue, 13 Oct 2015 20:07:38 -0000 Matthew Seaman wrote: > On 11/10/2015 11:14, Doug Hardie wrote: > >> I have 4 servers and a couple other devices on two ethernet LANS. >> There is no routing between the LANs. One is for internet >> connections and the other for purely internal traffic. Both the LANs >> are 100 Mbps switches (different models). One of the servers is >> showing ethernet errors on both interfaces. One interface has more >> input errors than output, and the other is reverse. None of the >> other servers or devices show any errors ever. It seems a bit >> strange that two switches would have errors on one port or that one >> server would have errors on two different NICs (different >> manufacturers) starting at about the same time. The errors do >> continue to build up, but very slowly. This server does see quite a >> bit of traffic, but its not as much as it used to be when there were >> no errors. I am at a loss to explain what is going on or where the >> problem might be. Any ideas? Unfortunately these servers are a 3 >> hour drive away at 1 AM. It’s considerably longer during the day as >> I have to drive through Los Angeles. >> > > Errors in 'netstat -i' output are frequently due to the cabling > connected to that network port. The cables are also about the cheapest > components that could be affected. I've seen this sort of thing happen > when an ethernet cable gets kinked, when the ethernet plugs aren't > properly pushed home or even when it is cable-tied in place too tightly. > > Get that checked out and maybe try swapping out ethernet cables before > attempting any more expensive repairs -- that should be something you > can get your colo people to look at without you needing to go there in > person. > > Cheers, > > Matthew > > > You may want to check for corroded connections on the cables and cards. It does sound like hardware. :( ... Al ~ Al Plant - Honolulu, Hawaii - Phone: 808-284-2740 ~ Supporting FreeBSD - UNIX Computer O/S email: noc@hdk5.net email: alplant.att.net ."All that's really worth doing is what we do for others" - Lewis Carrol