Re: [dnssd] DNS Name Autoconfiguration for Home Network Devices

"Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com> Wed, 19 November 2014 04:00 UTC

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Date: Wed, 19 Nov 2014 13:00:27 +0900
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From: "Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com>
To: Stuart Cheshire <cheshire@apple.com>
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Cc: "dnssd@ietf.org" <dnssd@ietf.org>, Myung-Ki Shin <mkshin@etri.re.kr>, Brian Haberman <brian@innovationslab.net>, Jung-Soo Park <pjs@etri.re.kr>
Subject: Re: [dnssd] DNS Name Autoconfiguration for Home Network Devices
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Stuart,
Thanks for your constructive comments.

As I answered Alf's email message just before,
I would like to allow IoT vendors to have an alternative way for DNS naming
with more compact implementation based on IPv6 stateless autoconfiguration.

For the question about how users find out the host names and which
protocols are used
were presented with the following slides 4 and 5 during the last dnssd WG
session in Hawaii:
http://www.ietf.org/proceedings/91/slides/slides-91-dnssd-6.pdf

To figure out what those devices do, we can use device category and device
model
in the DNS name format.

Paul

===========================
Mr. Jaehoon (Paul) Jeong, Ph.D.
Assistant Professor
Department of Software /
Department of Computer Engineering
Sungkyunkwan University
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On Wed, Nov 19, 2014 at 7:46 AM, Stuart Cheshire <cheshire@apple.com>; wrote:

> On 17 Nov, 2014, at 17:33, Mr. Jaehoon Paul Jeong <jaehoon.paul@gmail.com>;
> wrote:
>
> > Hi Tom,
> >
> > You are right for appliances with enough capacity to run mDNS.
> >
> > However, for low capacity IoT devices without mDNS, my proposal will be
> able to support an alternative way for DNS naming.
>
> You assert that there are devices with insufficient resources to run
> DNS-SD/mDNS.
>
> You assert that these devices would have sufficient resources to run your
> alternative.
>
> I think you need data to substantiate these claims. Note that devices like
> the SitePlayer Telnet implement DNS-SD/mDNS in under one kilobyte (about
> 850 bytes of code, if I remember correctly): <
> http://netmedia.com/siteplayer/telnet/>
>
> So you need to demonstrate that:
>
> 1. That there are devices where 850 bytes of code is too much.
>
> 2. That these devices can implement your thing in under 850 bytes.
>
> 3. That your thing is useful. I’m still unclear on what your thing is
> useful for. Your proposal says how devices pick host names, but not how
> users find out what those host names are, or find out what those devices
> do, or what protocol to use to communicate with them, and how clients
> resolve those host names to addresses.
>
> Stuart Cheshire
>
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