Thanks for that lengthy explanation. I gobbled it up eagerly! I owe you a drink ... no, given the work put into it, I owe you a bottle of Scotch. [That is what you drink, isn’t it? I’m getting old and the memory cells are not as flexible as they once were.]
That you read it is enough.
I made an oblique reference to MPLS which, in my opinion, destroys their argument for “Whole Pipe” access eventually