[Bloat] Apple ECN, Bufferbloat, CoDel

[Mikael Abrahamsson]

I highly encourage people to take a look at:

https://developer.apple.com/videos/wwdc/2015/?id=719 (you might have to 
reigster as an apple developer to watch it, I don't know)

"Your App and Next Generation Networks
IPv6 is growing exponentially and carriers worldwide are moving to pure 
IPv6 APNs. Learn about new tools to test your apps for compatibility and 
get expert advice on making sure your apps work in all network 
environments. iOS 9 and OS X 10.11 now support the latest TCP standards. 
Hear from the experts on TCP Fast Open and Explicit Congestion 
Notification, and find out how it benefits your apps."

Being on this list you might not learn much from the talk, but I really 
appreciate a talk aimed at a wider (developer) audience which so clearly 
outlines the benefits of ECN, CoDel and TCP host opimization to reduce 
end-to-end experienced application communication latency. One of the major 
takeaways is that Apple is planning to by default enable ECN in iOS9 and 
OSX 10.11. This would mean hundreds of millions of devices will be using 
ECN in a few months.

You can skip to 16 minutes into the talk if you're not interested in the 
new requirement for applications to support an environment where it's 
Internet access is IPv6 only behind NAT64+DNS64 (I'm myself super excited 
about this).

Let's hope this brings a lot of buzz and requests towards device 
manufacturers to start supporting ECN marking and AQM. Apple is usually a 
good megaphone to bring attention to these kinds of issues...

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se