Re: [RAM] Ramblings about "locator"
Stig Venaas <stig.venaas@uninett.no> Fri, 15 June 2007 08:23 UTC
Return-path: <ram-bounces@iab.org>
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Hz75W-0003Jl-7i; Fri, 15 Jun 2007 04:23:22 -0400
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Hz75V-0003Jf-9e for ram@iab.org; Fri, 15 Jun 2007 04:23:21 -0400
Received: from tyholt.uninett.no ([2001:700:1::eecb]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Hz75U-0000al-L9 for ram@iab.org; Fri, 15 Jun 2007 04:23:21 -0400
Received: from localhost (localhost.localdomain [127.0.0.1]) by tyholt.uninett.no (Postfix) with ESMTP id 4E707B5B48; Fri, 15 Jun 2007 10:23:19 +0200 (CEST)
Received: from tyholt.uninett.no ([127.0.0.1]) by localhost (tyholt.uninett.no [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 07727-01-15; Fri, 15 Jun 2007 10:23:19 +0200 (CEST)
Received: from [IPv6?2001?700?1?7?215?f2ff?fe35?307d] (sverresborg.uninett.no [IPv6:2001:700:1:7:215:f2ff:fe35:307d]) by tyholt.uninett.no (Postfix) with ESMTP id 02392B5B43; Fri, 15 Jun 2007 10:23:19 +0200 (CEST)
Message-ID: <46724C76.80707@uninett.no>
Date: Fri, 15 Jun 2007 10:23:18 +0200
From: Stig Venaas <stig.venaas@uninett.no>
User-Agent: Thunderbird 2.0.0.0 (X11/20070529)
MIME-Version: 1.0
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: [RAM] Ramblings about "locator"
References: <000901c7aef9$c3abbb90$bc92f385@nictkafle> <46723BAD.4060307@gmail.com>
In-Reply-To: <46723BAD.4060307@gmail.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at uninett.no
X-Spam-Score: -2.8 (--)
X-Scan-Signature: 769a46790fb42fbb0b0cc700c82f7081
Cc: ram@iab.org, Ved Kafle <kafle@nict.go.jp>
X-BeenThere: ram@iab.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Routing and Addressing Mailing List <ram.iab.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/ram>, <mailto:ram-request@iab.org?subject=unsubscribe>
List-Archive: <http://www1.ietf.org/pipermail/ram>
List-Post: <mailto:ram@iab.org>
List-Help: <mailto:ram-request@iab.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/ram>, <mailto:ram-request@iab.org?subject=subscribe>
Errors-To: ram-bounces@iab.org
Brian E Carpenter wrote: > On 2007-06-15 05:03, Ved Kafle wrote: >>> Marshall, >>> >>> ... >>>>> Maybe the essential point is that a locator can at least in >>>>> principle be mapped to topology and an identifier can't. >>>>> >>>> If in Ethernet what is essentially a random number (the MAC >>> address) >>>> becomes >>>> a locator then maybe the distinction will never be crisp. >>> Well, that horrible thought crossed my mind. I think I disagree >>> with Jarno's comment, because as soon as an Ethernet address >>> gets into a spanning tree it has become a locator (at level 2). >> >> So, the distinction between an identifier and a locator is dependent on >> the avalaibility of routing/switching infrastructure. If networks >> possess routing/switching insfrastructure based on a >> identifier namespace, the identifier simultaneously functions as a >> locator. Yes, I would say that it functions as a locator, but I'm not sure I would say that it is a locator. Does the fact that you know where all the identifiers are located make them locators? > My original RAMble (sorry) ended thus: > > Maybe the essential point is that a locator can at least in > principle be mapped to topology and an identifier can't. So I'm not sure exactly what "mapped to topology" should mean, but I think I do. I would not say that MAC addresses can be mapped, their values are not tied to the topology in any way. Stig > I think that's correct and actually consistent with much that's been > said. A slightly different way to say it is that a locator is a > handle for a route. > > Brian > > _______________________________________________ > RAM mailing list > RAM@iab.org > https://www1.ietf.org/mailman/listinfo/ram _______________________________________________ RAM mailing list RAM@iab.org https://www1.ietf.org/mailman/listinfo/ram
- RE: [RAM] Ramblings about "locator" jarno.rajahalme
- [RAM] Ramblings about "locator" Brian E Carpenter
- Re: [RAM] Ramblings about "locator" Marshall Eubanks
- Re: [RAM] Ramblings about "locator" Brian E Carpenter
- [RAM] Re: Ramblings about "locator" RJ Atkinson
- Re: [RAM] Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" Dino Farinacci
- Re: [RAM] Ramblings about "locator" Dino Farinacci
- Re: [RAM] Re: Ramblings about "locator" RJ Atkinson
- Re: [RAM] Re: Ramblings about "locator" Joel M. Halpern
- Re: [RAM] Re: Ramblings about "locator" Dino Farinacci
- Re: [RAM] Re: Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" RJ Atkinson
- Re: [RAM] Ramblings about "locator" Christian Vogt
- Re: [RAM] Re: Ramblings about "locator" Tony Li
- Re: [RAM] Re: Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" HeinerHummel
- Re: [RAM] Ramblings about "locator" Ved Kafle
- Re: [RAM] Ramblings about "locator" Brian E Carpenter
- Re: [RAM] Ramblings about "locator" Stig Venaas
- Re: [RAM] Ramblings about "locator" Noel Chiappa
- Re: [RAM] Re: Ramblings about "locator" Peter Sherbin
- Re: [RAM] Ramblings about "locator" Peter Sherbin
- Re: [RAM] Ramblings about "locator" Marshall Eubanks
- Re: [RAM] Ramblings about "locator" Brian E Carpenter
- RE: [RAM] Ramblings about "locator" louise.burness
- Re: [RAM] Re: Ramblings about "locator" Mikko Särelä