Re: [Fwd: Re: Last Call: Multicast Router Discovery to Proposed Standard]

[Brian Haberman <bkhabs@nc.rr.com>]

Hi Michelle,
     Responses to your questions are in-line...

> The IANA has reviewed the following Internet-Draft which is 
> in Last Call: <draft-ietf-idmr-igmp-mrdisc-10.txt>, and 
> has the following comments with regards to the publication of 
> this document:
>
> Here is the IANA Considerations section with inline comments:
>
>    This document introduces three new IGMP messages.  Each of these 
>    messages requires a new IGMP 'Type' value.  This document requests 
>    IANA to assign three new IGMP 'Type' values to the Multicast Router 
>    Discovery protocol (for Advertisements, Solicitations, and 
>    Terminations). 
>    
> This seems OK.  These registrations will be made in the following 
> registry:
>
> <http://www.iana.org/assignments/igmp-type-numbers>
>  
>    IPv6 support requests the allocation of two new Neighbor Discovery 
>    Option Types to support the mandatory Multicast Router Discovery 
>    options (found in Sections 7.2 and 7.3). 
> We are not sure where the above registrations should go.  Can we get
> a clarification?  
This standard requires two Neighbor Discovery Option Types assigned.
The rules for assigning these types are in section 5.6 of RFC
2780.

>     
>    IPv4 support of this protocol requires the administration of the 
>    Multicast Router Discovery option space.  This document requests that 
>    options be allocated using an IESG Approval or Standards Action 
>    processes.  In addition, this document requests that the options 
>    defined, the Query Interval Advertisement option (Section 7.2) and 
>    the Robustness Variable Advertisement option (Section 7.3) be 
>    allocated the values specified in the respective sections. 
>    This protocol also requests the creation of a new IANA registry to 
>    manage the Multicast Router Discovery Code Values for IPv4 support. 
>    New Code Values for the Multicast Router Discovery Type values are 
>    allocated using IESG Approval or Standards Action processes. 
> We understand a new registry for Multicast Router Discovery Code
> Values for IPv4 support needs to be created.  Are the above 2 
> paragraphs referring to the same registry.  We see the TBDs in 
> section 7.2 and 7.3 for the IPv6 types but no TBDs for IPv4 types.
> Also, is there a range of values for this registry or is there
> an infinite number?  Please clarify.
You are correct.  The second paragraph is redundant.

For IPv4, the authors nominally selected values for the Option
types in sections 7.2 & 7.3.  Those values can be used or IANA can
assign different values if they choose.

> Please respond to the IANA about our concerns with regards to this
> document.  Failing to do so may cause delay of the approval and
> publication of your document.
Let me know if you have further questions on this document.

Thanks!
Brian