I know I'm showing up late to the party, but can someone expand upon this from the RFC?
5. Source Addresses versus Group Addresses Multicast group addresses don't have to be associated with either the EID or RLOC namespace. They actually are a namespace of their own that can be treated as logical with relatively opaque allocation. So, by their nature, they don't detract from an incremental deployment of LISP-Multicast. The documents make reference to: (S-EID,G) (S-RLOC,G) It seems that while both these may be numerically identical (eg. 239.255.255.254), in terms of LISP, doesn't (S,G) have to much more complex and represent either (S-EID,G-EID(IID)) and (S-RLOC,G-RLOC(IID))? Once we introduce LISP mobility, what does (G) actually mean, especially when (G) can refer to link-local multicast for a host that has roamed off of its home subnet? Paul
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