I have not seen this widely discussed, but in the map/encaps approaches the Internet DFZ is essentially viewed as a giant NBMA "link" that connects all *TRs. In other words, all *TRs on the virtual link can reach each other in a single IP hop and can use neighbor discovery mechanisms such as IPv6 ND. This also paves the way for new ND mechanisms such as SEND.
This model exactly parallels that which was established in ISATAP [RFC5214], and has been further developed in RANGER/VET/SEAL. I made an effort to articulate this back in 2002 in a note titled: "The Inside-Out ISATAP Model": http://www.ops.ietf.org/lists/v6ops/v6ops.2002/msg00657.html but we seem to now be coming back around to the same concept. The main point of this note therefore is to (re)introduce the useful concept of the Internet DFZ as a giant NBMA "link" that connects routers the same as for any link. Fred [EMAIL PROTECTED] _______________________________________________ rrg mailing list [email protected] https://www.irtf.org/mailman/listinfo/rrg
