Re: VCC cost models .... (was Re: Limits on SVCCs)

[Grenville Armitage <[e-mail]>]

Eric,

>>	BTW, the "user" - sometimes referred to as the loose connection between
 the
>>keyboard and the seat - is frequently and uniquely unqualified to determine b
enefit
>>for a connection as well.  Just ask yourself how many of your users can disti
nguish
>>TCP and UDP...

Let's not get too carried away with the detail :-)

The 'service' is not TCP or UDP from this users's perspective. It's
a web page, a RealAudio connection, an mpeg movie snippet. For
these things I have a personal and somtimes dynamic sense of their worth.
If you can collapse trade-offs like TCP vs UDP, or hop-by-hop vs cut-through,
into some sort of comparative dollar figure, I can tell you which option
I think is 'worth it'. Right at the moment, the axis along which most
people will find cost sensitivity will be the long-vs-short distance
ATM call. Which NHRP impacts on.

Interesting problem, no?

cheers,
gja

(for the last year or so the related question of cut-through MARS
has popped up a number of times. needless to say this, umm, makes
for interesting back-of-the-envelope calculations as you figure
out who pays when _you_ request to join a Class D group and suddenly
force a number of senders to add a long-distance leaf node to their
pt-mpt VCs.)