Confirming source-routed multicast is dead on the public Internet

Saku Ytti saku at ytti.fi
Thu Aug 2 21:42:29 UTC 2018


Hey,

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


More information about the NANOG mailing list