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Re: [Roll] Default setting for config flags after MOP 7.

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 21 July 2020 13:18 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: Tue, 21 Jul 2020 09:18:12 -0400
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Subject: Re: [Roll] Default setting for config flags after MOP 7.
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Pascal Thubert \(pthubert\) <pthubert=40cisco.com@dmarc.ietf.org> wrote:
    > But then, when it finds a MOP that is >= 7, what should the code that
    > we write today do? For one thing RFC 6550 makes it a leaf.
    > But what about the RFC 8138 compression and the RPI 0x23?

So, it would find that MOP=7, and there was a MOPEX which it did not
understand?
Yes, as a RPL aware leaf maybe? It should be able to send DAOs, right?
Well, but it might not know where to send them, not knowing if it is in
storing or non-storing.

    > For both bits, the assumption would be that the probation phase has
    > ended and that implementations have migrated.

{yes, and some old hardware has been turned back on. Maybe it will upgrade
over the air...}

    > This means that after MOP 7 the default is that RFC 8138 is turned on,
    > and that Option Type in the RPL option is 0x23.

Yes, I agree.

--
]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [


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

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