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Re: [6tisch] [Roll] Fwd: New Version Notification for draft-thubert-roll-unaware-leaves-02.txt

Michael Richardson <mcr+ietf@sandelman.ca> Fri, 23 February 2018 18:55 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
cc: Routing Over Low power and Lossy networks <roll@ietf.org>, "6tisch@ietf.org" <6tisch@ietf.org>
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Date: Fri, 23 Feb 2018 13:55:53 -0500
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Subject: Re: [6tisch] [Roll] Fwd: New Version Notification for draft-thubert-roll-unaware-leaves-02.txt
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Pascal Thubert (pthubert) <pthubert@cisco.com> wrote:
    > If the 'R' flag is not set, then the Registering Node is expected to be a RPL
    > router that handles the reachability of the Registered Address by itself.
    > This document also specifies a keep-alive EDAR message that the RPL Root may
    > use to maintain an existing state in the 6LBR upon receiving DAO messages.
    > The EDAR message may only act as a refresher and can only update the Lifetime
    > and the TID of the state in the 6LBR.  A RPL router SHOULD NOT set the 'R' flag.

Can we also say that a 6LR, upon seeing a ND *without* the EARO option,
should assume it's like the R flag is set?  Or is such a node just
non-operable?  (Clearly, such a node can't move from DODAG to DODAG...)

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

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