Re: [dnssd] [IoT-DIR] Review of draft-ietf-dnssd-mdns-dns-interop-04

Ines Robles <mariainesrobles@googlemail.com> Wed, 15 March 2017 16:32 UTC

Return-Path: <mariainesrobles@googlemail.com>
X-Original-To: dnssd@ietfa.amsl.com
Delivered-To: dnssd@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 36B3A131710; Wed, 15 Mar 2017 09:32:14 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.998
X-Spam-Level:
X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, 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=googlemail.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 42t7DUzo6sB8; Wed, 15 Mar 2017 09:32:10 -0700 (PDT)
Received: from mail-vk0-x229.google.com (mail-vk0-x229.google.com [IPv6:2607:f8b0:400c:c05::229]) (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 EDE221316A1; Wed, 15 Mar 2017 09:32:08 -0700 (PDT)
Received: by mail-vk0-x229.google.com with SMTP id r136so11539630vke.1; Wed, 15 Mar 2017 09:32:08 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=EMntoE2nKmGHrWGxrIudCapKucB3AOF2JY9i1VNKD+w=; b=uumxWlB+bWcLcreVO4JWCYjuWAmAc9J5wVnvIxpKeBr5M0kaAust2TUoEVlWL7UzIt Y9pyxf46BZqOVro59BOuGD4Xw6uG73wzbRNN0EC6GI1TYDJEkWIRS1z7mthP8l2NCON+ /tDjtFl9KGx53OubOv0uMICQH3y1QUkKoF9SmtUZKvObwD+giWc3/R8nMmRyiLSGS7k6 eFsRr0jItmlBkpnu3A6ZXm1ESt2P2EN6Ll83H3yExzb+99t3SeDAm9QnAie/76ziBOZ5 x9wIx2ORwMzIOyMn56rPK95tioRg4Wv5yjgc0TUpWKFXbQ19adimBTP0zgYMV+442RkH i+Pw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=EMntoE2nKmGHrWGxrIudCapKucB3AOF2JY9i1VNKD+w=; b=bfubUaan8K/IN6E//Xj3hTVJSb7mzn1lkNsBb5KAxSxQV/OcMxP5DsJTj6LMj9qnAV tCm2mzyrtQS12u6pHCpKy7epfm9ICeXj0iy4afJLZLtbu3R7fOxMJCRe3gF9eWb0AWsa Zo8n9AZGENdkAoqu6PWj2M7xmB/enccFHbnw4HUdPfFEcxg7TC2wTEsyQqKj0KHZJSkK RcQJ6OugtB8lf3jbxDdxmtZJ7xS2qmrswtq/+4iR8s5w2XB5auzTAn085xyaJKxq9Sg8 ng62ExrZn5/tBUFZQ+hhkkGxWNVycvoV7VmTBb0AuTbmbgleeGn7KMQdjoy6oDFNUjhw 1+6g==
X-Gm-Message-State: AFeK/H3i+3RSgrUJnFMT/eVbqhFWJLXAIxMXpRH8Ba26Gx3nr6zUEQ5hX7JBmCotJFcrctJcKjRww3lWfIt6PA==
X-Received: by 10.31.72.67 with SMTP id v64mr1395895vka.37.1489595527979; Wed, 15 Mar 2017 09:32:07 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.176.85.130 with HTTP; Wed, 15 Mar 2017 09:32:07 -0700 (PDT)
In-Reply-To: <EMEW3|3d7f89a896697bb5f0f1b013499e85eey2EAWG03tjc|ecs.soton.ac.uk|C77E403A-4902-4ED0-ADF2-879FC08C6C16@ecs.soton.ac.uk>
References: <C77E403A-4902-4ED0-ADF2-879FC08C6C16@ecs.soton.ac.uk> <148951856846.2289.9860804626640095928@ietfa.amsl.com> <EMEW3|3d7f89a896697bb5f0f1b013499e85eey2EAWG03tjc|ecs.soton.ac.uk|C77E403A-4902-4ED0-ADF2-879FC08C6C16@ecs.soton.ac.uk>
From: Ines Robles <mariainesrobles@googlemail.com>
Date: Wed, 15 Mar 2017 13:32:07 -0300
Message-ID: <CAP+sJUfEUNXrbhqsvAfTNTL-fvYhMEPcAxDXoTfVKPii4bXaMw@mail.gmail.com>
To: Tim Chown <tjc@ecs.soton.ac.uk>
Cc: Ines Robles <maria.ines.robles@ericsson.com>, Ralph Droms <rdroms.ietf@gmail.com>, dnssd@ietf.org, ietf <ietf@ietf.org>, "iot-dir@ietf.org" <Iot-dir@ietf.org>, draft-ietf-dnssd-mdns-dns-interop.all@ietf.org, peter van der Stok <stokcons@xs4all.nl>
Content-Type: multipart/alternative; boundary=001a114db19e4dea24054ac77c0b
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnssd/GVT4R7l_1JDOMvMaEgsy3W-PbIY>
Subject: Re: [dnssd] [IoT-DIR] Review of draft-ietf-dnssd-mdns-dns-interop-04
X-BeenThere: dnssd@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "Discussion of extensions to DNS-based service discovery for routed networks." <dnssd.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnssd>, <mailto:dnssd-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnssd/>
List-Post: <mailto:dnssd@ietf.org>
List-Help: <mailto:dnssd-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnssd>, <mailto:dnssd-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 15 Mar 2017 16:32:14 -0000

Hi Tim,

We (Peter van der Stok and me ) are willing to present it.

How much time would we have? We might need 10 min, but we can adapt it to
less time though, since the agenda is already full.

Thank you,

Peter and Ines.

2017-03-15 7:32 GMT-03:00 Tim Chown <tjc@ecs.soton.ac.uk>uk>:

> Hi Ines,
>
> Many thanks for this review.
>
> As you’ve implictly noted, the focus of draft-ietf-dnssd-mdns-dns-interop-04
> is interoperability of the labels used, primarily between unicast and
> multicast DNS.
>
> You raise some very good points about the efficiency of mDNS/DNS-SD,
> particularly in constrained environments. This isn’t something we’ve
> covered in any detail as yet in the dnssd WG, aside from
> draft-aggarwal-dnssd-optimize-query-00 being presented a few IETFs ago,
> but DNS-SD in mesh networks is in our charter (
> https://datatracker.ietf.org/wg/dnssd/charter/). To date we’ve focused on
> enterprise and home networks as managed and unmanaged multi-link IP
> environments.
>
> It would be useful to explore potential issues with DNS-SD in constrained
> environments further. Is there someone who might be at Chicago and able to
> raise this issue in our meeting, briefly?  We could make some time for this
> topic. That might then help seed further work.
>
> Tim (dnssd co-chair)
>
> On 14 Mar 2017, at 19:09, Ines Robles <maria.ines.robles@ericsson.com>
> wrote:
>
> Reviewer: Ines Robles
> Review result: Ready
>
> Hi,
>
> I have read the draft. The document provides a description of the
> requirements for a profile for label interoperation.
>
> In IoT, networks and nodes, in general, have constrained resources.
> Related to the topic of the draft in review, several aspects should be
> considered from IoT point of view, such as:
>
> - Type of devices that have insufficient resources to run DNS-SD/mDNS
> [1] (Some running code [7]). The work in [2][3] depicts an
> autoconfiguration scheme for the global (or local) DNS names of IoT
> devices. It uses an specific DNS Name Format
> (unique_id.object_identifier.OID.domain_name).
>
> - Resource Directory (RD): A web entity that stores information about
> web resources and implements the REST interfaces for registration and
> lookup of resources. A mapping between CoRE Link Format attributes and
> DNS-Based Service Discovery aspects (mapping ins to <Instance>,
> Mapping rt to <ServiceType> and Domain mapping) is descripted in
> version 9 of RD draft [4].
>
> - Optimization of DNS-SD: A proposal for an optimization of DNS-SD
> query using TXT records is descripted in [5].
>
> - DNS Message Compression [6], implemented in uBonjour Contiki.
>
> Thus, new work (or updates) is needed to set the requirements for
> label interoperation in this type of environments. I understand that
> this is out of scope of dns-interop draft. So, what about to add in
> the dns-interop draft some text like:
>
> "Related to constrained environments, work is ongoing such as
> autoconfiguration[2], optimization of DNS-SD [5] and DNS message
> compression [6] that would help to get an efficient selection of
> labels for DNS and other resolution systems."
>
> Hope that it helps.
>
> Cheers,
>
> Ines.
>
>
> [1] https://www.ietf.org/mail-archive/web/dnssd/current/msg00589.html
> [2] https://tools.ietf.org/html/draft-jeong-its-iot-dns-autoconf-01
> [3] Lee, Sejun, Jaehoon Paul Jeong, and Jung-Soo Park. "DNSNA: DNS
> name autoconfiguration for Internet of Things devices." Advanced
> Communication Technology (ICACT), 2016 18th International Conference
> on. IEEE, 2016.
> [4] https://tools.ietf.org/html/draft-ietf-core-resource-directory-09
> [5]
> https://tools.ietf.org/html/draft-aggarwal-dnssd-optimize-query-00
> [6] Klauck, Ronny, and Michael Kirsche. "Enhanced DNS message
> compression-Optimizing mDNS/DNS-SD for the use in 6LoWPANs." Pervasive
> Computing and Communications Workshops (PERCOM Workshops), 2013 IEEE
> International Conference on. IEEE, 2013.
> [7] https://github.com/Agile-IoT/awesome-open-iot#mdns--bonjour
>
>
>
> _______________________________________________
> IoT-DIR mailing list
> IoT-DIR@ietf.org
> https://www.ietf.org/mailman/listinfo/iot-dir
>
>