[ih] ARPANET pioneer Jack Haverty says the internet was never finished

[Miles Fidelman]

But why does there NEED to be a separate charging scheme?

Seems to me that supporting multicast is a LOT cheaper than supporting 
all that extra traffic generated by lots of redundant traffic.  
Multicast would also likely reduce pressure on chokepoints, at ISP 
boundaries.

Miles Fidelman


Brian E Carpenter via Internet-history wrote:
> Actually inter-ISP diffserv is technically well defined now
> as is mapping to MPLS and 5G classes of service. But indeed,
> the issue for diffserv and multicast is the same: there is
> no cost-effective business model across ISP boundaries.
> Flat-rate best-effort capacity-based charging is still vastly
> cheaper and simpler to implement. I can't see any reason that
> will ever change.
>
> Regards
>    Brian
>
> On 04-Mar-22 08:10, Dave Crocker via Internet-history wrote:
>>
>>> The small amount of multicast address space really isn't a problem in
>>> practice.  For any successful, scalable multicast deployment, you'll 
>>> end up
>>> with source-rooted trees and the forwarding state in the routers are 
>>> (S,G)
>>> tuples.
>>
>>
>> Broadly, for anything like TOS or multicast, there are two different
>> sets of issues, either of which can easily create showstoppers.
>>
>> First is, of course, the mechanics.  What is the functional design?
>> What is the basis for believing it will satisfy real-world needs?  How
>> robust will it be?  How easy to operate?  Etc.
>>
>> Second is gaining adoption across a very large range of entirely
>> independent operators.  What are their immediate, compelling business
>> incentives?
>>
>> As we keep seeing, getting adoption of anything across an Internet
>> infrastructure service, is more than a little challenging.
>>
>> Cable TV's multicast is done within the span of a single administrative
>> control.  And it's a relatively stable, constrained set of traffic.
>> Generic Internet multicast is multiple administrations, with highly
>> variable sets of traffic, across many administrations.  Very, very
>> different game.
>>
>> d/
>>


-- 
In theory, there is no difference between theory and practice.
In practice, there is.  .... Yogi Berra

Theory is when you know everything but nothing works.
Practice is when everything works but no one knows why.
In our lab, theory and practice are combined:
nothing works and no one knows why.  ... unknown