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Xfinity does as well for their own infrastructure edges, but I realize that's a little different. IMO Netflix and Google are only ones where doing this makes s
by judge2020 5y ago
Xfinity does as well for their own infrastructure edges, but I realize that's a little different.
IMO Netflix and Google are only ones where doing this makes sense. Deploying and maintaining these edge CDN caches isn't cheap (For Netflix, probably a petabyte per machine to cache their largest shows in 4k with enough mirroring for the read bandwidth they need to they enable streaming terabits of data[0]. For Google it must be larger, or they just run it in raid 0 and have faults fallback to regular POPs).
0: https://gigaom.com/2013/06/20/how-netflix-built-its-openconnect-cache-to-speed-up-your-video-streams/2/#:~:text=We%20don%E2%80%99t%20have%20as%20many%20petabytes%2C%20but%20we%20have%20more%20terabits%20than%20anybody%20else https://gigaom.com/2013/06/20/how-netflix-built-its-openconn...
- tyingq 5y agoFeels like there would be some middle ground, if the various ISPs were working together as a conglomerate and caching at various regional peering points. I suppose that's dangerous ground legally though.
- judge2020 5y agoThe bigger issue with that is someone still needs to buy those hard drives and pay personnel to manager the hardware. The solution everyone came up with was to widely expand peering and put in 10 or 40 gig links at IXs, which keeps everyone happy with their opsec and still reduces the amount of backbone transit costs the parties incur.