Lazlow
join:2006-08-07
Saint Louis, MO | reply to fAcEtIOUs
Re: Unicast HD video will drive industry to traffic cost model You are forgetting that you can do multicast via internet too. |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1
1 edit | said by Lazlow:You are forgetting that you can do multicast via internet too. You forget that 90% of routers, ISP and residential, aren't set up to do it.
Explicit multicast would be the answer to multicast problems on the internet, that way anyone can do multicast, and not just people who are a Tier 1 ISP with a grandfathered exclusive IP range of multicast addresses.
»www.google.com/search?hl=en&safe···oq=&aqi= |
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| reply to Lazlow
said by Lazlow:You are forgetting that you can do multicast via internet too. But no one is doing it for residential systems. |
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 espaethDigital PlumberPremium,MVM
join:2001-04-21
Minneapolis, MN
kudos:2
 ·Clear Wireless
| reply to Lazlow
said by Lazlow:You are forgetting that you can do multicast via internet too. You can, but in this scenario it makes no sense. Multicast is for distributing the same packet to multiple people at the same time -- there exists a similar option in the traditional TV world, they're called channels. Every viewer on a multicast feed needs to watch on the same linear time line, just like a standard TV channel.
Internet-based video delivery is about 4 legitimate and 1 questionable thing:
1) Time Shifting (watch what I want, when I want it)
2) Place Shifting (same as #1, but not primary viewing location)
3) Archived Content
4) Niche content (Limited distribution)
Questionable) "Free" programming
Time shifting is by far the largest driver towards Internet-based delivery, and it also represents the most inefficient use of network resources. You're taking content that is already being digitally delivered to your house via OTA ATSC feeds, cable QAM feeds, and satellite QPSK/8PSK feeds.... and transferring yet another copy of the same content over the network. Time shifting is better accomplished through local capture and playback using an already established stream as the source. |
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