[rrg] The Internet DFZ as a giant NBMA "link"

[Scott Brim]

Excerpts from Templin, Fred L on Sun, Nov 30, 2008 01:49:12PM -0800:
> 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.

How would this scale?  We're considering O(10^9) prefixes and rather
more xTRs.  

> 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.

I'll take a look again.

Scott