[Spud] Whats missing in SPUD (was: Re: Multipath/Mobility (was Questions based on draft-trammell-spud-req-00))

[Toerless Eckert <[e-mail]>]

As a generic side thought based on Christians concern about privacy
(why would an app want to show a shared Tube-ID across multipath/mobile flows for example).

To me, the problem is best explained on the following workflow:

"Here is your new ID card".
"Why would i want to have an ID card, everybody who checks ID cards is evil"
"You do not have to show your ID card if you don't want to"
"Lets go to the bar"
"ID card please"
"Booze or anonymity... that's the question"
"Lets choose booze"

So, whats missing in SPUD (or any prior endpoint<->network) signaling is the
signaling element "If you do not show ID card, you will not get booze" or
"if you do not use a cross-subflow Tube-ID, your load-sharing, mobility or multipath
performance will suck or not work".

Using the same Tube-ID is just one example. This interaction really applies
to any possible signaling element: The anonymity freak will argue to his
death that he doesn't want to provide information to the network... unless
the network can persuade him that the benefit of showing outweights the
loss of anonymity. 

This is primarily a question of creating a data-model of what the network can offer
and tie that to a data model for what to show to get it....

Cheers
    Toerless