said by inMaryland :
Say what you want, I am convinced that Comcast is doing some kind of traffic shaping/throttling. BTW, what I am seeing is absolutely NOT a powerboost feature.
Comcast does do packet de-prioritization. If your node is saturated, and you have maxed out your line for X minutes, then your traffic is marked lower priority for Y minuets. Which means you'll get less of the fully saturated node's capacity.
under congestion management
"First, the local network must be approaching a congested state for our technique to even look for traffic to manage. Assuming that is the case, customers accounts must exceed a certain percentage of their upstream or downstream (both currently set at 70%) bandwidth for longer than a certain period of time, currently set at 15 minutes."--
My place : »www.schettino.us