H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/24 (2006.01) G06F 11/20 (2006.01)
Patent
CA 2283042
An apparatus, method and system are provided for file synchronization for a fault tolerant network, and are both application and platform independent. The fault tolerant network generally includes an active network entity, such as a telecommunication server, and a standby network entity to assume the functionality of the active network entity in the event of a failure of the active network entity. The method of the present invention includes accessing a file within the active network entity, such as through a read or write request of any network application. A file access request within the active network entity is generated and transmitted to the standby network entity, which also performs the file access request. The standby network entity then generates and transmits a file access confirmation to the active network entity. The active network entity then determines whether the file access request of the active network entity has a corresponding file access confirmation from the standby network entity. When the file access request has the corresponding file access confirmation, indicating that the files are in synchrony between the active and standby network entities, the active network entity then deletes the file access request and the corresponding file access confirmation from memory; but when the file access request does not have the corresponding file access confirmation, indicating a lack of synchrony, the active network entity then generates an error message and transfers the file access request to an error log, for subsequent use.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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