Zach,

Thank you very much for your comment.
The issue is already in the issue tracker. #1 is actually for that. We
are revising the text.
Thanks a lot,

-eunah

On Thu, Feb 12, 2009 at 12:01 AM, Zach Shelby <[email protected]> wrote:
> Hi,
>
> In Minneapolis, there was another comment that came up (from me, and some
> others) which should be added as a ticket. Didn't notice it wasn't there
> earlier, sorry.
>
> -00 of the draft is extremely IEEE 802.15.4 specific. The working group has
> moved towards link-layer independence and has accepted that 6lowpan is being
> used over other radio technologies in addition to 802.15.4. In fact, the new
> HC and ND drafts are already written to be link-layer independent.
>
> My request is to make this draft more link-layer agnostic. I think it is
> fine to use IEEE 802.15.4 as an example, however it should be mentioned and
> considered that 6lowpan will be used over other low-power radios which may
> have similar characteristics to 802.15.4, but surely not the exact same
> mechanisms such as RFD/FFD and superframes. The use of these features in
> practice in the industry is also marginal even for 802.15.4.
>
> On the same note - we need to correct this in RFC4944 as well either through
> an update or replacing it. Making it clear to newcomers that 6lowpan is only
> for 802.15.4.
>
> Thanks,
> Zach
>
> Eunsook "Eunah" Kim wrote:
>>
>> Dear 6LoWPANers,
>>
>> For revision of the routing requirement documents, please give us your
>> comments.
>> Currently, we have 4 tickets at issue tracker.
>>
>>
>> (http://trac.tools.ietf.org/wg/6lowpan/trac/query?component=routing-requirements)
>>
>> - #1: "Make sure interface to 15.4 is clear".
>> One of the comments in Minneapolis
>> was whether 6LoWPAN WG is assuming only the 802.15.4 frame format or the
>> whole PHY/MAC protocol.
>>
>> - #2: "Improve discussion of mutual requirements of routing and header
>> compression".
>> the relation between routing and header compression, contexts, etc
>>
>> - #3: "Discuss hibernation-induced latency with the latency requirements".
>> Latency may be affected by nodes hibernation, depending on the MAC used.
>> Other MAC approaches than the legacy 802.15.4 may be used (e.g. TDMA) and
>> duty cycling may also affect latency (and many other things).
>>
>> - #4: "Refine discussion on how MAC-layer ACKs can go into routing".
>> There was a comment that 802.15.4 does not protect layer two
>> acknowledgments.
>> So many systems use data frames for acknowledgements.
>>
>>
>> Please feel free to give us comments on these issues or any other
>> issues for the revision.
>>
>> Greetings,
>> -eunah
>> _______________________________________________
>> 6lowpan mailing list
>> [email protected]
>> https://www.ietf.org/mailman/listinfo/6lowpan
>
> --
>
> Zach Shelby
> Head of Research
> Sensinode Ltd.
> Kidekuja 2
> 88610 Vuokatti
> FINLAND
>
> mobile: +358 40 7796297
>
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