At the bottom of this you can find a description of how Netflix at the moment is detecting these problems: http://blog.streamingmedia.com/2014/06/netflixs-netw

At the bottom of this you can find a description of how Netflix at the moment is detecting these problems: http://blog.streamingmedia.com/2014/06/netflixs-network-congestion-message-rolling-networks-just-verizon.html http://blog.streamingmedia.com/2014/06/netflixs-network-cong... Sounds sufficiently sophisticated.