[160712] in North American Network Operators' Group
Re: The 100 Gbit/s problem in your network
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Mon Feb 11 18:56:16 2013
From: "Patrick W. Gilmore" <patrick@ianai.net>
In-Reply-To: <B64D149F-F3AB-4F05-BC95-76EF3DFEF3A1@ianai.net>
Date: Mon, 11 Feb 2013 18:55:45 -0500
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Feb 11, 2013, at 18:52 , "Patrick W. Gilmore" <patrick@ianai.net> =
wrote:
> On Feb 11, 2013, at 14:11 , Stephen Sprunk <stephen@sprunk.org> wrote:
>> Multicast _is_ useful for filling the millions of DVRs out there with
>> broadcast programs and for live events (eg. sports). A smart VOD =
system
>> would have my DVR download the entire program from a local cache--and
>> then play it locally as with anything else I watch. Those caches =
could
>> be populated by multicast as well, at least for popular content. The
>> long tail would still require some level of unicast distribution, but
>> that is _by definition_ a tiny fraction of total demand.
>=20
> One of us has a different dictionary than everyone else.
>=20
> Assume I have 10 million movies in my library, and 10 million active =
users. Further assume there are 10 movies being watched by 100K users =
each, and 9,999,990 movies which are being watched by 1 user each.
Obvious typo, supposed to be 8,999,990. Or you can say I have 11 =
million users. Whichever floats your boat.
Hopefully the point is still clear, even in a crowd as pedantic as this.
--=20
TTFN,
patrick
> Which has more total demand, the 10 popular movies or the long tail?
>=20
> This doesn't mean Netflix or Hulu or iTunes or whatever has the =
aforementioned demand curve. But it does mean my "definition" & yours =
do not match.
>=20
> Either way, I challenge you to prove the long tail on one of the =
serious streaming services is a "tiny fraction" of total demand.
>=20
> --=20
> TTFN,
> patrick
>=20
