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A comment on Verizon Knows Your WiFi SSID and Key. Parent comment

Re:Verizon Knows Your WiFi SSID and Key by hahainternet on Wednesday March 26, 2014 @11:31AM (#7474058)
> The first 10 seconds of a Uverse TV stream is transmitted over UDP. After 10 seconds, it switches to multicast

What the heck? Do you have any clue what the motivation is behind this?

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Re:Verizon Knows Your WiFi SSID and Key by tacoman on Wednesday March 26, 2014 @01:03PM (#7474728)
It's how they deliver instant channel change. The unicast udp burst is about 30% higher than the nominal bitrate of the multicast. The STB stitches the unicast and multicast together seamlessly.
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Re:Verizon Knows Your WiFi SSID and Key by hahainternet on Wednesday March 26, 2014 @03:12PM (#7475699)
That is an impressively smart solution really. I don't have instant channel change :(
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Re:Verizon Knows Your WiFi SSID and Key by chomp on Wednesday March 26, 2014 @02:47PM (#7475486)
Yeah like tacoman said, it's for channel changing.

Multicast saves on bandwidth.

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