Tom, > 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?
yes, I believe so. although for (2) multiple End-user IPv6 prefixes is independent of multiple rules. there will be exactly one BMR per MAP domain. cheers, Ole
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