[ih] "The First Router" on Jeopardy

[Tony Li]

Toerless,

> On Nov 23, 2021, at 3:16 PM, Toerless Eckert <tte at cs.fau.de> wrote:
> 
> Not sure what the definition of "traffic placement" is, AFAIK, the 99%
> use-case for any TE solution (especially SR) is what i'd call
> "SP network capacity optimization". Aka: fitting as much traffic through
> the SP topology (consisting of a variety of non-equal-cost-path alternatives)
> as possible.
> 
> In other words: TE today is about offering LE (Lousy Effort) Internet
> service for  lower capex. Nothing less, nothing more. 
> 
> Obviously, i think there could and should be more.


That would be nice, but in practice, it hasn’t found a market.  Best Effort (or Lousy Effort) typically results in 99.999% of the packets making it to their destination with perfectly acceptable reliability, delay, and jitter. When SP’s have attempted to charge a premium for the remaining 0.001%, they have found that almost all customers were not interested, and those that did pay the premium did not feel that it was worthwhile.

The ultra-extreme folks who want the ultimate reliability are not willing to have SPs in the loop in the first place.

But back to the point: the mechanisms are all in place for constrained path computation for various different traffic classes and applications if people choose to turn them on. Some do.

T