Re: [Roll] [6tisch] I-D Action: draft-richardson-6tisch-roll-enrollment-priority-01.txt

Michael Richardson <mcr+ietf@sandelman.ca> Thu, 27 September 2018 17:05 UTC

From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "Georgios Z. Papadopoulos" <georgios.papadopoulos@imt-atlantique.fr>
CC: roll@ietf.org
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Date: Thu, 27 Sep 2018 13:05:08 -0400
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Subject: Re: [Roll] [6tisch] I-D Action: draft-richardson-6tisch-roll-enrollment-priority-01.txt
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Georgios Z. Papadopoulos <georgios.papadopoulos@imt-atlantique.fr> asked
about a name conflict between my two documents.

Namely, draft-richardson-6tisch-roll-enrollment-priority-01 it is defined as
“min. priority"

while in draft-ietf-6tisch-enrollment-enhanced-beacon-00 as “proxy priority”.

To put this question in better context, and to assure myself that this wasn't
an issue due to uneven document editing/revision:

draft-ietf-6tisch-enrollment-enhanced-beacon-00 says:

   |   TBD-XXX     |R| proxy prio. |       rank priority           |
   +-+-+-+-+-+-+-+-+-+-------------+-------------+-----------------+
   | pan priority  |                                               |

and is dated July 17, 2018.

draft-richardson-6tisch-roll-enrollment-priority-01 says:

       0                   1                   2
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |   Type = TBD01|Opt Length = 1|R| min. priority  |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   min.priority  a 7 bit field which provides a base value for the
      Enhanced Beacon Join priority.  A value of 0x7f (127) disables the
      Join Proxy function entirely.

and is dated August 6, 2018.

The intent is that min. priority value would provide a floor value for
the proxy prio. above.  The local node would add to it based upon local
conditions.   Since 0x7f is the infinite value, if the DODAG root wants
to turn off join by sending out 0x7f.

We should change the name from min. priority to something like:
   Proxy Join Priority Base Value == PJPBV ??
   (Makes me think about Peanut Butter and Jelly sandwiches)

Perhaps you can suggest better terms, but I don't think that the terms
should be identical, because the value is not passed straight on.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-

Re: [Roll] [6tisch] I-D Action: draft-richardson-… Michael Richardson
Re: [Roll] [6tisch] I-D Action: draft-richardson-… Michael Richardson