From the article: "But for some reason, its share of uploads went up substantially in the latest measurement while downloads remained level."
[1] - http://arstechnica.com/information-technology/2014/07/how-co... Tier 1 networks have generally exchanged traffic with each other without payment if they send and receive roughly equal amounts of data. Schaeffer has claimed it's impossible for Comcast to be "in balance" with any other network because its own Internet service is designed for consumers to download far more than they upload