[Bloat] Detecting bufferbloat from outside a node

[Toke Høiland-Jørgensen]

Neil Davies <neil.davies at pnsol.com> writes:

> The interesting thing is making all those local decisions add up to a
> (set of) end-to-end outcomes, and the answer is not to make the same
> decision(s) everywhere - unfortunately that doesn’t stack up.

Yes, well, I do also like the E2E principle of not making too many
decisions within the network, instead letting the endpoints sort it out.
For me, the fight against bufferbloat is mostly about restoring the
assumptions that it has eroded (i.e. "packet loss is not to be feared,
but on the contrary is an important indicator that we're hitting
congestion"). I'd really rather prefer the network itself to be fairly
dumb...

> We have (some level) of control over our “universe of discourse” - my
> joke with my mates at CERN is that they only have one universe to
> investigate, we can create three in one day and still be home in time
> for tea!

Hehe, quite. That is both fascinating and frustrating! :)

-Toke