CACHE AFFILIATION IN IPTV EPG SERVER CLUSTERING
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United States of America Patent
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N/A
Issued Date -
Jan 15, 2009
app pub date -
Jul 12, 2007
filing date -
Jul 12, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An EPG service architecture incorporates multiple EPG servers connected in a cluster. An active dispatcher is associated with at least one EPG server and multiple standby dispatchers are associated with the cluster. A plurality of STBs interfaced with the EPG server cluster issue requests for EPG service for which the active dispatcher employs an affiliation table as a portion of the cache for redirecting each request to a specific one of the EPG servers affiliated with the STB issuing the request. The active dispatcher multicasts the affiliation table to the multiple standby dispatchers for synchronization.
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