Re: Broadcast television in an IP world

[Luke Guillory <lguillory () reservetele com>]

A local dvr caches the channel when someone hits pause, on our multi room dvrs it’ll keep 30 minutes of programming.

Sent from my iPhone

On Nov 21, 2017, at 9:27 AM, Mike Hammett <nanog () ics-il net<mailto:nanog () ics-il net>> wrote:

Better STBs that cache the stream?




-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com

Midwest-IX
http://www.midwest-ix.com




Luke Guillory
Vice President – Technology and Innovation


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----- Original Message -----

From: "K. Scott Helms" <kscotthelms () gmail com<mailto:kscotthelms () gmail com>>
To: "Luke Guillory" <lguillory () reservetele com<mailto:lguillory () reservetele com>>
Cc: nanog () nanog org<mailto:nanog () nanog org>
Sent: Tuesday, November 21, 2017 8:58:38 AM
Subject: Re: Broadcast television in an IP world

Luke,

I think I understand your example but the local broadcaster won't usually
(ever?) have the rights to retransmit the Super Bowl over IP.

Having said that, what you're describing is exactly what happens already
(without multicast) via multiple CDNs. Multicast across the internet isn't
feasible (economically) today. Multicast inside of an organization
certainly is and is very common. Having said that, even popular content is
surprisingly sparse (when we look at flows) and even inside of edge
networks (DOCSIS, FTTH, xDSL, etc) it can be surprisingly challenging to
make the math work. As soon as someone wants to pause the "big game" or
flips to another channel you now have to move their flow to unicast. Even
when lots of people are watching the same event the economics aren't as
compelling as they might appear initially.


On Tue, Nov 21, 2017 at 9:29 AM, Luke Guillory <lguillory () reservetele com<mailto:lguillory () reservetele com>>
wrote:

The comment I was originally replying to was the following. I’ve said edge
resources, nothing about WAN.

The content provider (lets say local TV station that broadcasts the

Superbowl) can just unicast to the ISP a single stream, and give the

ISPs some pizza sized box (lets call it an "Appliance") and that box

then provides unicast delivery to each customer watching the Superbowl.





*Sent from my iPhone*

On Nov 21, 2017, at 8:22 AM, K. Scott Helms <kscotthelms () gmail com<mailto:kscotthelms () gmail com>> wrote:

It's not helpful for saving resources in DOCSIS (nor any other) edge
networks. The economics mean that, as bits get sold in the US and many
other places, it won't be in the foreseeable future. Customers care about
popular video sources. Popular content sources have CDNs with local nodes
and/or direct (low cost) connections to their CDN. That's far more
efficient than allowing multicast across WAN links.

K. Scott Helms



Luke Guillory
Vice President – Technology and Innovation


<http://www.rtconline.com>
Tel: 985.536.1212 <(985)%20536-1212>
Fax: 985.536.0300 <(985)%20536-0300>
Email: lguillory () reservetele com<mailto:lguillory () reservetele com>
Web: www.rtconline.com<http://www.rtconline.com>
Reserve Telecommunications
100 RTC Dr
<https://maps.google.com/?q=100+RTC+Dr+%0D+Reserve,+LA+70084&entry=gmail&source=g>
Reserve, LA 70084






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On Tue, Nov 21, 2017 at 8:58 AM, Luke Guillory <lguillory () reservetele com<mailto:lguillory () reservetele com>>
wrote:

I’m not paying anything for local resources with regards to local edge
delivery, that’s capital expenditures not MRCs.

Our edge networks aren’t unlimited or free, so while it’s not costing me
on the transit side there still are cost in terms of upgrades and so on.

My point is that In some networks such as docsis conserving edge
resources can be helped with multicast.



Sent from my iPhone

On Nov 21, 2017, at 4:12 AM, Baldur Norddahl <baldur.norddahl () gmail com<mailto:baldur.norddahl () gmail com>
<mailto:baldur.norddahl () gmail com>> wrote:

Den 21. nov. 2017 00.42 skrev "Luke Guillory" <lguillory () reservetele com<mailto:lguillory () reservetele com>
<mailto:lguillory () reservetele com>>:

Why would an ISP not want to conserve edge resources? If I’m doing iptv
I’m
better off doing multicast which would conserve loads of BW for something
popular like the Super Bowl. Especially if I’m doing this over docsis.



You pay for 95th percentile. If that is decided by everyone watching Game
of Thrones one day, then using the same resources for Super Bowl the next
day will be for free.




Luke Guillory
Vice President – Technology and Innovation


[cid:imagef9b835.JPG@242ea556.429501f5] <http://www.rtconline.com


Tel: 985.536.1212
Fax: 985.536.0300
Email: lguillory () reservetele com<mailto:lguillory () reservetele com>
Web: www.rtconline.com<http://www.rtconline.com>

Reserve Telecommunications
100 RTC Dr
<https://maps.google.com/?q=100+RTC+Dr+%0D+Reserve,+LA+70084&entry=gmail&source=g>
Reserve, LA 70084





Disclaimer:
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