Does a multi-CDN setup (truly) requiring switching?
summary
Describes deploying a switchless multi-CDN media delivery system using the Coded Multisource Media Format (CMMF). It explains packaging HLS/DASH segments into multiple CMMF versions, caching each version on a different CDN, and having the player simultaneously request versions and reconstruct the original segment once enough coded data arrives. Presents deployment experience at a 20M-subscriber service, one million streaming hours, and performance comparisons versus a conventional multi-CDN switching approach.
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