djrobx
join:2000-05-31
Valencia, CA
 ·PHONE POWER
 ·AT&T U-Verse
·AT&T CallVantage
·Time Warner VOIP
 ·RoadRunner Cable
1 edit | reply to espaeth
Re: Lay FTTH
quote:
Unicast IP-based streaming video (ala ATT's U-Verse solution) has infrastructure that needs to grow with each and every viewer, and comes with significantly limitations.
U-verse TV is not unicast IP. It's multicast IP via IGMPv3. So if every subscriber on the node is watching CBS, CBS only needs to be fed to the node once.
U-verse is currently limited to 2HD and mediocre quality HD video, but we can thank weakly deployed FTTN for that. If they had deployed nodes a little closer for 40mbps per home, they could go up to 4HD easily. Aside from the FTTN induced bandwidth crunch, the IPTV part of the system works brilliantly. One DVR easily records 4 channels at once. Channel changes are lightning fast. And adding HD channels is a non-issue for them.
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AT&T U-Hearse
Your funeral. Delivered.
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