Re: Comments on draft-ietf-6man-multicast-scopes-02

On Feb 10, 2014, at 5:41 AM 2/10/14, Jouni Korhonen <jouni.nospam@gmail.com> wrote:

> Sorry for being late with my comments but here we go anyway.
> 
> I think this document is almost ready. Few comments/questions
> though.
> 
> ** In Section 3:
> 
>   NEW:
> 
>     o  The boundaries of zones of a scope are defined by the IPv6
>        addressing architecture [RFC4291].
> 
> Ok.. this is confusing since it is *this* I-D that updates RFC4291
> with a new Realm-scope aware boundary, thus RFC4291 would eventually
> point back to this I-D. So while the above change is correct it
> definitely is confusing.

How about:

    o  The boundaries of zones of a scope are defined by the IPv6
       addressing architecture [RFC4291] and updated by this document.

> 
> Just like with draft-ietf-6man-multicast-addr-arch-update I see a
> need for RFC4291bis, where Section 1 like enhancements would
> belong to rather than stacking up I-Ds that patch things here and
> there.  Again I recon it might be too late for this, though.

In my opinion, it would be fine to start on an RFC4291bis now.  I would strongly object to holding up this document for that effort, as the definition of scop 3 is needed now for MPL.

> 
> ** Section 5
> 
> What would go under the other scopes than 3? Shouldn't we say at
> least something about the possible future use of those? Will they
> also list RFCs? 

RFC 4291 explicitly leaves the other scopes "(unassigned)".  It would be out of scope for this document to say more about those scopes than RFC 4291.

> ** Section 7
> 
> I don't think it is sufficient just to refer to RFC4291 (almost non
> existent) security considerations. For example there should be a
> reference to RFC4007 which actually has text related to security
> considerations of boundaries and scopes.

Good point.  I suggest:

7.  Security Considerations

   This document has no security considerations beyond those in RFC 4007
   [RFC4007] and RFC 4291 [RFC4291].

- Ralph

> 
> - JOuni
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