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Re: [Roll] draft-ietf-6man-multicast-scopes updates RFC 4007 (Was Re: [roll] #132: draft-ietf-roll-trickle-mcast-04 - Clarify scope value of 3 - subnet-local)

Dave Thaler <dthaler@microsoft.com> Fri, 25 October 2013 20:49 UTC

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From: Dave Thaler <dthaler@microsoft.com>
To: "Ralph Droms (rdroms)" <rdroms@cisco.com>
Thread-Topic: draft-ietf-6man-multicast-scopes updates RFC 4007 (Was Re: [Roll] [roll] #132: draft-ietf-roll-trickle-mcast-04 - Clarify scope value of 3 - subnet-local)
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Date: Fri, 25 Oct 2013 20:49:14 +0000
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Cc: Routing Over Low power and Lossy networks <roll@ietf.org>, "6man@ietf.org" <6man@ietf.org>
Subject: Re: [Roll] draft-ietf-6man-multicast-scopes updates RFC 4007 (Was Re: [roll] #132: draft-ietf-roll-trickle-mcast-04 - Clarify scope value of 3 - subnet-local)
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Ralph wrote:
[...]
> >>   NEW:
> >>
> >>         Interface-Local, Link-Local, and Realm-Local scope boundaries
> >>         are automatically derived from physical connectivity or
> >>         other, non-multicast related configuration.  Global scope has
> >>         no boundary.  The boundaries of all other non-reserved scopes
> >>         are administratively configured.
> >
> > I disagree with the last sentence above.  Specifically "non-reserved"
> > should be removed.  That is, we should not start precluding admin
> > configuration of reserved scopes, given we didn't before.  They just
> > didn't have defined names or uses, but they could have been used
> > within private environments.
> 
> Good catch.  So the last sentence should read:
> 
>   The boundaries of all other scopes are administratively configured.
> 
> ?

Yes.

-Dave

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