IETF Logo Mail Archive

Re: [spring] Draft-ietf-spring-network-programming ipv6 addressing architecture - was draft-ietf-6man-segment-routing-header-26 violating RFC4291, IPv6 Addressing Architecture?

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 12 March 2020 02:34 UTC

Return-Path: <brian.e.carpenter@gmail.com>
X-Original-To: spring@ietfa.amsl.com
Delivered-To: spring@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A26933A079B; Wed, 11 Mar 2020 19:34:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L-7257slW5_k; Wed, 11 Mar 2020 19:34:07 -0700 (PDT)
Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 90EE03A079C; Wed, 11 Mar 2020 19:34:07 -0700 (PDT)
Received: by mail-pj1-x1030.google.com with SMTP id np16so1897279pjb.4; Wed, 11 Mar 2020 19:34:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=l8IJ3NpiLnPP32wTshT/Mx28+wSzQh4xMv7+LzYFauU=; b=QcL43wNlbkJb6uf8H4YRytopk77shPFiDsWJndb5JeuFGofx5zlgwB/l9/GNQZDrhD zqdnz+asxgoLA4BrmRxaY5JQQbPE+8dMks2j2SZkELmzhTjYGaewbZLNGjNlyd+7TtMA sTzVEi0i07giyZQSGHKUhN3u7KYUDkKlYM/T9TR/BIyjvbyjIdfLcFMbBlVxBqoP0NCd b/OdUsrskKbeLTubaA7Tiylbd+RXsVzb1xcWXTccJfFA2zQp9Mtkb8EfOI0R6bkR1RCU MiSyBHRwxbySdU4Z+aKpH4q3sLVdBSrPYPnwIA2ftT7Q0iQvHnK/K0uLcnHxpUShoRjW HWHQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=l8IJ3NpiLnPP32wTshT/Mx28+wSzQh4xMv7+LzYFauU=; b=gvwMupCKcy7AR0OFczBLteLrQCK/aZQs5KTt2vlt6Ptc+wDyQauqNFMTGUJW5XROjR aPzzLhlxS25DQm/WnRLZW9iO+A7nKvv92/2DPjhovnV7YBygKnpOh09YYeKIgZIMibu3 PxaE8PMr7Nr5TSNarsCIyu0TuYm4AcenabGk1Ip9MNymr+7FBGmA7iK3ycMIROJjkXq3 FLyoasdpcnPqMTv0YiiVgJP8l0mqP1vBL1pMOqmuajqa1ON7W5qUb/EW4jgXt4Yvbd4k EwOe5o4xVvg+lNnJQ0K8jUGqaaCK025CuKehXTmAPV4zNuv03W0NJalQo7uj4g2hyzTx l/KA==
X-Gm-Message-State: ANhLgQ2p5vT/suJOxIasCYWskigl6zoBeqJ/ROBSomWWJTn6P4mTFSjD WITEsnAANqIImuDA6nRri8Y3jAtL
X-Google-Smtp-Source: ADFU+vsTFqkXUx5LRwPIjEqqt3vq+Ej3T+74Yr5Kn7kEcqIeQAvffftS3Mjn0dlPQfCJPy2OyyRyKA==
X-Received: by 2002:a17:902:7583:: with SMTP id j3mr6067528pll.236.1583980446525; Wed, 11 Mar 2020 19:34:06 -0700 (PDT)
Received: from [192.168.178.30] ([165.84.25.143]) by smtp.gmail.com with ESMTPSA id j24sm23191267pfi.55.2020.03.11.19.34.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Mar 2020 19:34:05 -0700 (PDT)
To: Fernando Gont <fernando@gont.com.ar>, Andrew Alston <Andrew.Alston@liquidtelecom.com>, "Darren Dukes (ddukes)" <ddukes@cisco.com>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Cc: "spring@ietf.org" <spring@ietf.org>, 6man WG <ipv6@ietf.org>
References: <4F4FF5EC-690F-4C09-9101-98AB2DDFDE0C@liquidtelecom.com> <a38c3197-2513-4af6-cb4f-a0a96c082cb9@gmail.com> <fc7aa0a5-bf57-2407-1b37-06b1833a5abe@gont.com.ar>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <f83272c1-8c66-ed03-02c0-dab5dd75e0a3@gmail.com>
Date: Thu, 12 Mar 2020 15:34:01 +1300
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1
MIME-Version: 1.0
In-Reply-To: <fc7aa0a5-bf57-2407-1b37-06b1833a5abe@gont.com.ar>
Content-Type: text/plain; charset="utf-8"
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/hcoy5QDk5nWIDK0bw2yc5OK4C0Q>
Subject: Re: [spring] Draft-ietf-spring-network-programming ipv6 addressing architecture - was draft-ietf-6man-segment-routing-header-26 violating RFC4291, IPv6 Addressing Architecture?
X-BeenThere: spring@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Source Packet Routing in NetworkinG \(SPRING\)" <spring.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spring>, <mailto:spring-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spring/>
List-Post: <mailto:spring@ietf.org>
List-Help: <mailto:spring-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spring>, <mailto:spring-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 12 Mar 2020 02:34:09 -0000

On 12-Mar-20 10:44, Fernando Gont wrote:
> On 11/3/20 18:30, Brian E Carpenter wrote:
> [....]
>>
>> However, I can't find anything in RFC 4291 that forbids addresses
>> having semantic meanings rather than being pure locators. It goes
>> against one of my design prejudices, but I can't find anything
>> resembling "Encoding semantics in address bits considered harmful"
>> in the RFCs.
> 
> Didn't *you* write that document? ;-) : RFC7136

Well yes, in the context of IIDs used for SLAAC etc. But that's a bit more
narrow than what we are discussing here, I think. I assume that SLAAC is
not involved.

Good catch, though ;-)

    Brian

v2.23.0 | Report a Bug | By Email