Re: [Roll] [6tisch] [6lo] call for consensus for the RPL RPI / RH3 compression

Tom Taylor <tom.taylor.stds@gmail.com> Tue, 06 January 2015 23:20 UTC

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Date: Tue, 06 Jan 2015 18:20:06 -0500
From: Tom Taylor <tom.taylor.stds@gmail.com>
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To: Michael Richardson <mcr+ietf@sandelman.ca>, Ralph Droms <rdroms.ietf@gmail.com>
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Subject: Re: [Roll] [6tisch] [6lo] call for consensus for the RPL RPI / RH3 compression
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On 06/01/2015 6:13 PM, Michael Richardson wrote:
>
> Ralph Droms <rdroms.ietf@gmail.com> wrote:
>      >> Ralph Droms <rdroms.ietf@gmail.com> wrote:
>      >>> But ... in my opinion, moving the LLN artifacts to the header/dispatch
>      >>> in the way defined in draft-thubert-6lo-routing-dispatch raises,
>      >>> implicitly, an important architectural issue: is the information in the
>      >>> dispatch header compressed IPv6 headers or headers for an independent,
>      >>> sub-IP protocol?
>      >>
>      >> My answer is that a sub-IP protocol can encapsulate arbitrary layer-3 packets.
>      >> In particular, one can have overlapping IP addressing contexts,
>
>      > "addressing contexts"?
>
> It's a meaningless and ambiguous term, particularly in IPv6.  Perhaps there
> is a better one in some BEHAVE document.
> What I mean is that you can run ten different 10.0.0.0/8 RFC1918 networks
> simultaneously on the same link using one of the sub-IP protocols...

[PTT] The Behave term is "address domain". Initial definition in RFC 
2663, repeated in subsequent documents.
....