System and method for protecting against failure through geo-redundancy in a SIP server
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United States of America Patent
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Nov 30, 2010
Issued Date -
N/A
app pub date -
Dec 13, 2007
filing date -
Dec 13, 2006
priority date (Note) -
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Abstract
The SIP server deployment can be comprised of an engine tier that provides high throughput processing and a state tier that maintains SIP state data in a set of partitions and replicas. Two sites of SIP server deployments can be configured, each being remotely located with respect to the other. A primary site can process various SIP transactions and communications and upon determining a transaction boundary, replicate the state data associated with the transaction being processed, to a secondary site. Engines in the primary site can generate hints for the state replicas which can be in turn responsible for replicating the SIP session state. The replicas can choose to follow or disregard the generated hints. Upon failure of the primary site, calls can be routed from the failed primary site to the secondary site for processing. Similarly, upon recovery, the calls can be re-routed back to the primary site.
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