[6lo] Fwd: INT area directorate review of draft-ietf-6lo-paging-dispatch
Samita Chakrabarti <samitac.ietf@gmail.com> Thu, 08 September 2016 18:23 UTC
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From: Samita Chakrabarti <samitac.ietf@gmail.com>
Date: Thu, 08 Sep 2016 11:23:36 -0700
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To: 6lo@ietf.org, Donald Eastlake <d3e3e3@gmail.com>
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Subject: [6lo] Fwd: INT area directorate review of draft-ietf-6lo-paging-dispatch
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FYI ---------- Forwarded message ---------- From: Donald Eastlake <d3e3e3@gmail.com> Date: Fri, Aug 26, 2016 at 10:01 PM Subject: INT area directorate review of draft-ietf-6lo-paging-dispatch To: int-dir@ietf.org, int-ads@ietf.org, draft-ietf-6lo-paging-dispatch.all@ietf.org I am an assigned INT directorate reviewer for draft-ietf-6lo-paging-dispatch. These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see http://www.ietf.org/iesg/directorate.html. This short draft is a fairly straightforward extension to the encoding of 6LoWPAN compression that effectively multiplies the code space for "DispatchType Filed" bytes by a bit less than a factor of 16. Due to the space constraints of 802.15.4 frames, 6LoWPAN encoding is into bytes and the draft specifies a block of 16 bytes values which set the context for the parsing of subsequent bytes until the next such context setting. It is backwards compatible as existing encoding is in context zero which is the default. the draft refers to these 16 contexts as Pages in the sense of pages of code values. There are also some special provisions for Page 1. After fixing the nits and possibly tweaking the IANA Considerations as below, I think this document is ready for publication. IANA Considerations: It seems odd to me to say that 15 additional registries should be created for Pages (contexts) 1 through 15 when 14 of those will initially be empty except perhaps that the last 16 values in each registry are the Page switch values.. I would have expanded the existing registry with a "Page" column and added a note about Page zero being the default and applying if no other Page has been set. But perhaps this is jus a matter of taste. Nits: Section 3, first line of last paragraph, "is is" -> "is". The nits checker complains about a few missing form feeds. Thanks, Donald =============================== Donald E. Eastlake 3rd +1-508-333-2270 (cell) 155 Beaver Street, Milford, MA 01757 USA d3e3e3@gmail.com
- [6lo] Fwd: INT area directorate review of draft-i… Samita Chakrabarti