Re: [Roll] ticket - 172 - clarify units of trickle timers

Michael Richardson <mcr+ietf@sandelman.ca> Mon, 17 August 2015 15:04 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Cc: Routing Over Low power and Lossy networks <roll@ietf.org>
Subject: Re: [Roll] ticket - 172 - clarify units of trickle timers
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peter van der Stok <stokcons@xs4all.nl> wrote:
    > It will be a nuisance if sets of nodes must be initialized with different
    > Imin and Imax values to reach the same behaviour.
    > The same problem will occur when a YANG (SMIv2) description is made for
    > managing these parameters.

I think that we expect that Imax is in units of multiple of Imin, which
is in units of TUNIT.  Is that part at least, non-controversial?

    > Suggestion: write an ERRATA document for RFC6206 which then solves
    > draft-ietf-roll-trickle-mcast-12 issue.

I think that 6206 doesn't care what units are expressed internally.
Do any math in 6206 depend upon an integer multiple relationship between Imin
and Imax?


--
Michael Richardson <mcr+IETF@sandelman.ca>ca>, Sandelman Software Works
IETF ROLL WG co-chair.    http://datatracker.ietf.org/wg/roll/charter/