Re: [Fud] Charter Text

Olaf Bergmann <bergmann@tzi.org> Thu, 10 August 2017 16:16 UTC

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From: Olaf Bergmann <bergmann@tzi.org>
To: Hannes Tschofenig <hannes.tschofenig@gmx.net>
Cc: Emmanuel Baccelli <Emmanuel.Baccelli@inria.fr>, fud@ietf.org
References: <8f8528da-d1eb-08c7-b3fe-b1f4febed595@gmx.net> <CANK0pbbbgEONiCeuQGOuRO9Gq62RpAVhh53xLxd5JOMQtJg-_g@mail.gmail.com> <87d187oehr.fsf@aung.informatik.uni-bremen.de> <56ebab2e-86d2-bab4-be48-303fc0da0c81@gmx.net> <87poc6l4et.fsf@aung.informatik.uni-bremen.de> <da755d1e-cc50-c843-3be4-2f2412ae723d@gmx.net>
Date: Thu, 10 Aug 2017 18:15:56 +0200
In-Reply-To: <da755d1e-cc50-c843-3be4-2f2412ae723d@gmx.net> (Hannes Tschofenig's message of "Thu, 10 Aug 2017 13:47:36 +0200")
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Subject: Re: [Fud] Charter Text
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Hi Hannes,

Hannes Tschofenig <hannes.tschofenig@gmx.net> writes:

> FWIW I would not consider VoIP phones in scope of the devices we would
> be looking at.

I do not say that we should look at VoIP phones in general (if they
happen to be class 1 devices, they might be in focus here). I brought
these up as an example that shows how multi-step firmware updates today
are handled on devices that also have certain limitations on their RAM
and flash memory.

This brings me back to the charter text. It says:

  "Since the publication of RFC 4108 more than 10 years have passed and
   more experience with IoT deployments have lead to additional
   functionality requiring the work done with RFC 4108 to be revisited."

Now, although it was already suggested (and you agreed) to mention RFC
7228 class 1 devices later in the charter, the quoted sentence may lead
to the impression that this is merely a 4108bis which would address
non-constrained devices as well.

> I also recall discussions at the IoTSU workshop but I remember that
> there was some confusion between the concept of a monolithic firmware
> images and what is actually sent over the wire (full image vs.
> differential updates). I don't think we ever talked about bootloaders
> vs. the rest of the OS.

It's never too late to start. As said before: Vendors do this already.

Grüße
Olaf