High availability distributed call processing method and apparatus
AssigneeLucent Technologies Inc.
InventorsRichard Wayne Buskens, Thomas F. La Porta, Yow-Jian Lin, Kazutaka Murakami, Ramachandran Ramjee
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Abstract
A method of delivering highly-reliable, fault-tolerant communications services in a telecommunications network of distributed call processing systems. The method advantageously identifies a set of objects within the telecommunications network requiring checkpointing; checkpoints the objects; and subsequently restores the checkpointed objects in the event of a failure. Various aspects of the method are disclosed, including restoration strategies.
Claims9
A method of delivering high-reliability, fault-tolerant communications services within a telecommunications network comprising the steps of
- identifying a set of objects within the telecommunications network requiring checkpointing wherein said set of objects are identified by
- first, determining a set of global objects within the telecommunications network requiring checkpointing;
- second, identifying duplicate objects within the global object set;
- third, determining, which ones of said duplicate objects require checkpointing;
- and
- fourth, eliminating, from the global object set, duplicate objects which do not require checkpointing;
- checkpointing the objects upon the occurrence of a particular event;
- and
- restoring the checkpointed objects upon the occurrence of a predetermined event.
Dependencies are inferred from the claim text.