Level 3 Tests of Comcast Xfinity Traffic "Are Consistent" with Prioritiztion

With the important caveats that there is a history of conflict between Comcast and Level 3, and with the caveat that "there are a number of factors that can influence download performance for Internet traffic," two Level 3 engineers say it might appear that Xfinity packets delivered to Xbox terminals "consistently" get good performance in both the congested and uncongested tests, while Netflix traffic is significantly impaired when the home connection is congested.


"These results seem to be consistent with the practice of prioritization," says Andrew Dugan, Level 3 Communications SVP of Network Engineering & Architecture, and Nasser El-Aawar, Level 3 Principal Network Architect.