Re: [6tisch] Comment to draft-wang-6tisch-6top-coapie-01.txt

[Thomas Watteyne <[e-mail]>]

Tero,

I'm cautious in embracing a standard without understanding benefits and
overhead:

Where can I download the 802.15.9 spec? All I can find is
https://www.ietf.org/proceedings/84/slides/slides-84-roll-3.pdf

What is the scope of 802.15.9? It is presented as a Key Management
solution, yet you suggest to use 802.15.9's mechanisms for (i) IE space and
(ii) fragmentation. It looks to me like we would be exploiting a tiny
fraction of a much more involved standard, but have to include the full
memory footprint.

How much flash/RAM memory is a 802.15.9 implementation?

Thomas


On Fri, Sep 25, 2015 at 2:00 PM, Tero Kivinen <[e-mail]> wrote:

> Thomas Watteyne writes:
> > We need to discuss this point urgently, and do the work to ask the
> > IEEE for carve out some IE space for IETF/6TISCH if applicable.
>
> There is Vendor specific IE space for both header and payload IEs.
> Those can be used provided IETF has OUI allocated from RAC. The
> 802.15.9 uses ethertypes, so you can allocate one of ethertypes for
> generic, or you can ask for an number from 802.15.9 specific range.
>
> I think for this the 802.15.9 would be better, as it would also
> provide the fragmentation and multiplexing layer, meaning you are not
> restricted to 127 byte limit.
> --
> [e-mail]
>