I have to agree with Dino on this one. What we are
talking about here is engineering. And more than that,
its engineering with a large constraint set (i.e., the
Internet). But engineering is about tradeoffs (well, its
part art, part economics, and part luck too). So as Dino
says, other solutions are going to have different
tradeoffs. Some worse (for sure), and possibly some
better. But it is clear that all of the solutions on the
table (and likely any other solution) have complex issues
sets, so we need to look at the bigger picture (rather
than focus on any one issue in isolation).
We design for the optimal case and hopefully with experience and data
from operators more networks move to the optimal case.
Right, and experience and data are the fundemental
compliments to both research and engineering.