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Re: [Roll] WG Last Call draft-ietf-roll-trickle-mcast-04

Ralph Droms <rdroms.ietf@gmail.com> Mon, 01 April 2013 16:08 UTC

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From: Ralph Droms <rdroms.ietf@gmail.com>
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Date: Mon, 01 Apr 2013 12:08:26 -0400
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To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Subject: Re: [Roll] WG Last Call draft-ietf-roll-trickle-mcast-04
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Following up on my previous feedback - lacking a definition for scope 3, the document should include a definition for scope 3 as used in MPL; e.g., "all interfaces connected to a single mesh network".

- Ralph

On Apr 1, 2013, at 11:13 AM 4/1/13, Ralph Droms <rdroms.ietf@gmail.com> wrote:

> I apologize for the late feedback...
> 
> Section 8 seems somewhat out of place, as well as redundant with the definition of "MPL Domain" in section 2 and the contents of section 5.1.
> 
> Multicast scope 0x03 has never been formally defined as "subnet-local".  Delete the references to "subnet-local" in sections 5.1 and 8, leaving just "scope value of 3".  Note that scope value 3 is currently defined as "reserved" in RFC 4291.  I am working on publication of an RFC that will re-define scope value 3 as "(unassigned)" so it can be used as specified in draft-ietf-roll-trickle-mcast-04.
> 
> In section 10.1, "the MPL Domain Address" is a little confusing.  Does a device belong to just a single MPL Domain, in which case it might be clearer to write "the MPL Domain Address to which the source interface belongs".  Otherwise - and I don't think I see any text in the document that explicitly constrains an interface to belonging to one MPL domain - the text should read "an MPL Domain Address to which the source interface belongs".
> 
> - Ralph
>

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