Re: [Roll] UNaware leaves

Michael Richardson <mcr+ietf@sandelman.ca> Thu, 29 August 2019 13:24 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Date: Thu, 29 Aug 2019 09:24:25 -0400
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Subject: Re: [Roll] UNaware leaves
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Pascal Thubert (pthubert) <pthubert@cisco.com> wrote:
    >> >   This specification does not alter the operation of a 6LoWPAN ND-
    >> >   compliant 6LN, which is expected to operate as follows:
    >>
    >> really... I thought that we were making it able to deal with RPL artifacts, as
    >> specified in section 6!!!

    > Which is as should already be. That's not even 6LoWPAN ND, that's IPv6 if you look at it.

Well, I tried to push for 6man's host requirements bis (RFC8504) to include processing
of IP(dst=me)IP(dst=me) to be included, but it was a hard push, and I didn't
have the energy.

So, we are making requirements which go beyond 8504.

    >> What is the specific signal that the 6LR can use to know that the host is an RAN
    >> rather than a RUL?

    > Yes we have text, maybe even repeated with terminology; e.g.,

    > "
    > The 6LR advertises the
    > Registered Address in DAO messages, if and only if it is triggered by
    > an NS(EARO) that has the 'R' flag set, indicating that the 6LN is a
    > RUL.  If the 'R' flag is not set, then the Registering Node is
    > expected to be a RAN that handles the reachability of the Registered
    > Address by itself.
    > "

got it.

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