Maintaining database integrity throughout a communication network
January 12, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPacket-switched network having alternate virtual paths Control system for switching duplicated switch units in ATM exchange Highly reliable online system Detecting unauthorized modification of communication unit based on comparison between stored hardware identification code and hardware identification code generated from operational platform identification code Resynchronization of asynchronous transfer mode (ATM) switch fabric Routing method and apparatus for switching between routing and conversion tables based on selection information included in cells to be routed Patent #: 5473598 InventorAssigneeApplicationNo. 372032 filed on 01/12/1995US Classes:370/394, Sequencing or resequencing of packets to insure proper output sequence order714/6Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)ExaminersPrimary: Olms, Douglas W.Assistant: Jung, Min Attorney, Agent or FirmForeign Patent References
International ClassH04L 012/56AbstractA communication network with a database consistency mechanism is disclosed, wherein a sequence number and a set of routing information for each of a set of virtual circuits of the communication network are maintained in a main database and an auxiliary database in each of a set of communication nodes in the communication network. The sequence numbers in the main database or the auxiliary database in each of the communication nodes are verified if one of the communication nodes switches between the main database and the auxiliary database, and then virtual circuits are rerouted when necessary.Other References
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