Youtube over QUIC

[Luca De Cicco]

Do you have evidence that QUIC is being used (experimentally) for streaming youtube videos?

Thanks,

Luca

[Manoj Narayanan]

Probably yes. I am able to see QUIC Sessions in Google Chrome (Version 32.0.1672.2 canary Aura in windows , with #enable-quic and #enable-quic-https turned on in chrome://flags/ ) when accessing youtube. I do connections to some specific youtube servers such as r4---sn-ci5gup-cage.c.youtube.com, but not sure how much of it is for streaming video content.

[Pradeep Nayak]

How are you confirming that those are quic sessions ? What tool are you using to verify this ?

Regards,
Pradeep Nayak

http://pradeepnayak.in
http://twitter.com/_prdp

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[Manoj Narayanan]

You can see QUIC session by going to the net internals URL in chrome, ie type 'chrome://net-internals/#quic'

[faried nawaz]

Not only have I seen Youtube use QUIC, but also sites hosted on Google's infrastructure, like blog.golang.org, and a few *.appspot.com sites I tried.  Run

curl -I something.appspot.com

and look for the "Alternate-Protocol" header.

Try this Chrome extension: https://chrome.google.com/webstore/detail/spdy-indicator/mpbpobfflnpcgagjijhmgnchggcjblin

The icon turns red when your browser uses QUIC.

Faried.

[Qi Wang]

I can see QUIC is used in Youtube, but do we know it is only for HTML page delivery, or also for video data delivery?

[Luca De Cicco]

You could easily check with tcpdump. Unfortunately I cannot check it myself.

Luca

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[Yoav Weiss]

I've seen HTML5 YouTube videos over QUIC in the past. Flash based videos were over TCP, though.

[Qi Wang]

Thanks for the confirmation