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Re:Netflix: Lessons We’ve Learned Using AWS by mechanical_fish on Thursday December 16, 2010 @02:49PM (#2013331)
the location of data centers and other such physical constraints, like peering arrangements

This is not Netflix's core competency either. This is the core competency of a CDN. If you have problems like this, you should almost certainly hire one, and architect accordingly.

Netflix has long since done so:

http://blog.streamingmedia.com/the_business_of_online_vi/201...

Re:Netflix: Lessons We’ve Learned Using AWS by patrickgzill on Thursday December 16, 2010 @06:14PM (#2014303)
Actually Netflix now uses Level3's (level3.com) CDN: http://www.level3.com/index.cfm?pageID=491&PR=958
Re:Netflix: Lessons We’ve Learned Using AWS by elq on Thursday December 16, 2010 @07:31PM (#2014556)
Notice how they say - "primary content delivery network", primary not sole.

netflix actually uses many cdns, including akamai and l3.

Re:Netflix: Lessons We’ve Learned Using AWS by lambda on Thursday December 16, 2010 @07:44PM (#2014585)
No, they still use Akamai (dig cdn-0.nflximg.com to verify), but they are planning on moving to Level3 (assuming the Comcast/Level3 fight doesn't sour that deal too badly).