Methods and systems combining push and pull protocols

Details Methods and systems combining push and pull protocols Methods and systems combining push and pull protocols

2009-10-14

2010-10-26

Wang, Liangche A (Department: 2453)

Electrical computers and digital processing systems: multicomput

Computer network managing

Network resource allocating

C709S217000, C709S218000, C709S219000, C709S223000, C709S230000, C709S231000

Reexamination Certificate

active

07822855

ABSTRACT:
Combining push and pull protocols, including the steps of pushing approximately a minimal decodable set of erasure-coded fragments to an assembling device, determining the fragment loss at the assembling device, and pulling additional erasure-coded fragments, using a fragment pull protocol, to compensate for the fragment loss. Optionally, the system includes a CDN streaming server and a fractional-storage CDN server, both storing unique erasure-coded fragments associated with segments of streaming content. The CDN streaming server pushes streams of fragments to a plurality of assembling devices, and the fractional-storage CDN server provides fragments associated with recently pushed segments in response to fragment pull protocol requests by the assembling devices.

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