Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt

Colin Perkins <csp@csperkins.org> Mon, 17 August 2020 10:34 UTC

Return-Path: <csp@csperkins.org>
X-Original-To: icnrg@ietfa.amsl.com
Delivered-To: icnrg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0C7443A1499; Mon, 17 Aug 2020 03:34:41 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.1
X-Spam-Level:
X-Spam-Status: No, score=-2.1 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, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=csperkins.org
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 cKnaKAR_NZjV; Mon, 17 Aug 2020 03:34:38 -0700 (PDT)
Received: from haggis.mythic-beasts.com (haggis.mythic-beasts.com [IPv6:2a00:1098:0:86:1000:0:2:1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BFBBE3A1495; Mon, 17 Aug 2020 03:34:38 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=csperkins.org; s=mythic-beasts-k1; h=To:Date:From:Subject; bh=tTIdiuuxp2kzZc/QdWcDBc0yvLY/vkZ3PHiKt+EFm6E=; b=d8A6et2oBllHeqrtEL7uLSJsx8 kWCmZQhNTjxFKYQLU4VwfmL6PwS9C/QuRwCpezp+ajCkqM7LOozcAKE9Ye7mM9CSc9a70vAGHYl1Y PZH9+mzn3VmW7WSm7tUm4IV9AEDIv2AZBagic6vptJqOpEOD3nUrhmm8M2+NDa3IG//zLILnaG2xx DfQPAqrnWNzm2Bx74DVEp3c/gEkHU6W1tG0nF5Qfgv5zpm50anZV45Ljz0ghz5f/9CCFz+Dsll4it bHW8yzRFta38vBIWtytbVtSFNT/cTksHr8+rg/H8q4oFUWKRSP316C2gvfIiYEdn4jsh7A6N+Svih ODAhVsMg==;
Received: from [81.187.2.149] (port=44214 helo=[192.168.0.80]) by haggis.mythic-beasts.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from <csp@csperkins.org>) id 1k7cTN-00009Y-0m; Mon, 17 Aug 2020 11:34:37 +0100
Content-Type: text/plain; charset=utf-8
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.15\))
From: Colin Perkins <csp@csperkins.org>
In-Reply-To: <64D0F686-1CA9-4B16-BFB3-AEFB48EC65F9@tzi.org>
Date: Mon, 17 Aug 2020 11:34:26 +0100
Cc: draft-irtf-icnrg-icnlowpan@ietf.org, ICNRG <icnrg@irtf.org>, "Pascal Thubert (pthubert)" <pthubert@cisco.com>
Content-Transfer-Encoding: quoted-printable
Message-Id: <FACF6148-EDF0-45D9-8DE0-2C871B2CE49A@csperkins.org>
References: <158832868689.11087.7358311653842055205@ietfa.amsl.com> <E1954083-8BA4-4173-A87E-EA87D5771C9F@tzi.org> <64D0F686-1CA9-4B16-BFB3-AEFB48EC65F9@tzi.org>
To: Carsten Bormann <cabo@tzi.org>
X-Mailer: Apple Mail (2.3445.104.15)
X-BlackCat-Spam-Score: 4
Archived-At: <https://mailarchive.ietf.org/arch/msg/icnrg/I3xCKWlV_22MUFUKLT0N_AwbzoY>
Subject: Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt
X-BeenThere: icnrg@irtf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Information-Centric Networking research group discussion list <icnrg.irtf.org>
List-Unsubscribe: <https://www.irtf.org/mailman/options/icnrg>, <mailto:icnrg-request@irtf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/icnrg/>
List-Post: <mailto:icnrg@irtf.org>
List-Help: <mailto:icnrg-request@irtf.org?subject=help>
List-Subscribe: <https://www.irtf.org/mailman/listinfo/icnrg>, <mailto:icnrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Mon, 17 Aug 2020 10:34:41 -0000

Hi,

I’m adding Pascal Thubert to the cc list, since we did an early review of this for IANA. There was some previous discussion of how to do these assignments to reduce the number of code points needed.

Colin



> On 15 Aug 2020, at 13:42, Carsten Bormann <cabo@tzi.org> wrote:
> On 2020-08-12, at 20:54, Carsten Bormann <cabo@tzi.org> wrote:
>> 
>> It seems to me that this can easily be repaired by using two half pages instead of a full page, e.g. by indicating NDN vs. CCNx in the page number instead of the P bit (the most significant bit, which is now the P bit, would always be 0).
> 
> Having completed my initial review (and having sent a set of editorial comments to the authors), I now have a slightly different proposal:
> Since there are only really 4 code points for uncompressed, put these at 0x80..0x83, and put the compressed ones at 0x00..0x7f.
> 
> So the (now inverted) C-bit would be bit 0, and NDN/CCNx and Interest/Data could be bit 6 and 7.
> 
> This also enables to put the whole 132 code points into page 15, which might be more appropriate for an experiment (and wouldn’t require an IANA allocation), but that is certainly a change that would require more attention from other participants of the experiment that might have other experimental code points out in the same experiment.  (Alternatively, this RFC could ask for allocating page 14 to experimental, as well, and suggest a page 14 mapping for ICNLOWPAN, leaving 108 code points in page 14 free and not impinging on other experiments.)
> 
> Since this draft is consuming space that ultimately belongs to 6lo, it may be appropriate to talk to that WG on how they see the evolution of that space.
> 
> It will probably help with that if a cogent statement can be made what the actual experiment is that this experimental RFC supports.  Although I sure can imagine what that might be, there is little information in the current draft.
> 
> Grüße, Carsten
> 
> _______________________________________________
> icnrg mailing list
> icnrg@irtf.org
> https://www.irtf.org/mailman/listinfo/icnrg