nanog mailing list archives

Re: Confirming source-routed multicast is dead on the public Internet


From: Saku Ytti <saku () ytti fi>
Date: Fri, 3 Aug 2018 00:42:29 +0300

Hey,

On Fri, 3 Aug 2018 at 00:36, Jakob Heitz (jheitz) via NANOG
<nanog () nanog org> wrote:

Hey, there's a better way.
Split the movie into segments:
Segment 1: Minute 1.
Segment 2: Minute 2.
Segment 3: Minutes 3,4.
Segment 4: Minutes 5-8.
Segment 5: Minutes 9-16.
etc.
Then send each segment in a loop.
Each receiver receives every loop simultaneously.
Each segment may start receiving part way through, but then it starts again.
By the time a segment needs to play, it is completely received.
A 128 minute movie needs 8 streams.
While waiting for the first minute, you can play ads :)
The shorter segments don't need to be sent for long:
Receivers can stop receiving the short segments once they have received one loop of it.
When no receiver is receiving a loop, you can stop sending it.

Cute :). Well 8*bitrates, but nice optimisation to make stream count
finite. Of course at cost of quality, as receiver needs up-speed of 8x
at start. Interesting side-effect, quality increases as movie
progresses :)
-- 
  ++ytti


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