Re: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07

[Tom Taylor <[e-mail]>]

I'm a bit late on this, but it comes from trying to sort out what the 
underlying information will look like as Diameter AVPs coming from AAA. 
This is just a question for clarification.

As indicated in Section 5, bullet 1 of the MAP-E document, a MAP CE can 
be provisioned with multiple End-user IPv6 prefixes, each associated 
with its own Basic Mapping Rule.

If I read things correctly in section 5.1 of 
draft-ietf-softwire-map-dhcp-07.txt, there are two cases:
  (1) Multiple domains: multiple instances of OPTION_S46_CONT_MAPE will 
be present.

  (2) Single domain, multiple subnets: multiple instances of 
OPTION_S46_RULE will be present within a single instance of 
OPTION_S46_CONT_MAPE.

In either case, the correlation between the End-user IPv6 prefix and its 
corresponding Basic Mapping Rule is achieved through longest match. A 
good CPE implementation will validate that there is a 1-1 correspondence 
between the BMRs and the provisioned End-user IPv6 prefixes.

Is my understanding correct?

Tom Taylor

On 07/04/2014 12:37 AM, Suresh Krishnan wrote:
> Hi all,
>    This message starts a two week softwire working group last call on
> advancing the draft about the DHCPv6 Options for configuration of
> Softwire Address and Port Mapped Clients as a Standards Track RFC. The
> authors believe that this version has addressed all the issues raised on
> the document. The latest version of the draft is available at
>
> http://www.ietf.org/id/draft-ietf-softwire-map-dhcp-07.txt
> http://tools.ietf.org/html/draft-ietf-softwire-map-dhcp-07
>
> Substantive comments and statements of support/opposition for advancing
> this document should be directed to the mailing list. Editorial
> suggestions can be sent directly to the authors. This last call will
> conclude on April 21 2014.
>
> Regards,
> Suresh & Yong
>
>
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