From owner-freebsd-arm@freebsd.org Fri Nov 11 23:59:58 2016 Return-Path: Delivered-To: freebsd-arm@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 29599C39F5A for ; Fri, 11 Nov 2016 23:59:58 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) Received: from alogt.com (alogt.com [69.36.191.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 097C61F75 for ; Fri, 11 Nov 2016 23:59:57 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=alogt.com; s=default; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=oFCRUype7YL6Ve5njTJOB5pC97ITePCQyGIryiz6m9Y=; b=m+5obPfvZEWKn6tv6CwFj2xSt0 MIWXIWMq4FgLfX9j2/tlibDAgjCmr6BjvwiEwSXY0tOqQHTvG0DqHIi5LB9sKZJCR8aIbL6u2kLeB 2N+6W5pPD4fAZMGGvJBtTxn3tNTnEl4gzmZndKLJwRqHEbGlcTJttQE+AeBJNJ0r8gc0=; Received: from [114.125.104.44] (port=60500 helo=X220.alogt.com) by sl-508-2.slc.westdc.net with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1c5Ljf-002RYC-16; Fri, 11 Nov 2016 16:59:57 -0700 Date: Sat, 12 Nov 2016 07:59:36 +0800 From: Erich Dollansky To: "John W. Kitz" Cc: Subject: Re: How to change MAC address on RPI-B? Message-ID: <20161112075936.6cf98437@X220.alogt.com> In-Reply-To: <000f01d23c14$da3a6c00$8eaf4400$@Kitz@xs4all.nl> References: <005701d23a7d$71400630$53c01290$@Kitz@xs4all.nl> <20161110065105.77a19e3b@X220.alogt.com> <000c01d23b3a$c06e1ef0$414a5cd0$@Kitz@xs4all.nl> <20161111094930.46f55a60@X220.alogt.com> <000f01d23c14$da3a6c00$8eaf4400$@Kitz@xs4all.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - sl-508-2.slc.westdc.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - alogt.com X-Get-Message-Sender-Via: sl-508-2.slc.westdc.net: authenticated_id: erichsfreebsdlist@alogt.com X-Authenticated-Sender: sl-508-2.slc.westdc.net: erichsfreebsdlist@alogt.com X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Nov 2016 23:59:58 -0000 Hi John, On Fri, 11 Nov 2016 13:12:19 +0100 "John W. Kitz" wrote: > JKi: The point I was trying to make is that locally administered MAC > addresses serve a purpose in the recovery of hardware failures, e.g. > in its basic form when one needs to replace a broken NIC thereby > ending up with a system with a different MAC address, in those > situations where the higher layer protocol (addressing or rather lack > thereof, such as can be the case in SNA / VTAM installations) doesn't. > > The other point, which you're not answering, is assuming that one > would rely on the use of both lower and higher layer addressing in > the recovery from hardware failures is there, in your experience, a > noticeable gain in recovery time to be made by applying both > techniques. we have at the moment only the situation in which non-fault-tolerant systems address our fault-tolerant system. Our emphasis is currently only to detect a fault, switch MAC and IP address, report the fault and let the outside world believe all is fine. We have then 1 to 4 days time to fix the faulty system. Yes, I know, this is not a very common situation. We use this only as users of the system have to have no IT skills. They even wonder that there is some IT used in our system. I can imagine where you come from. Your system is very, very different from our system. Just have a look at our website. The words IT, computer, fault-tolerant etc are not even used a single time. Erich > > Regards, Jk. > > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"