Routing of network traffic
Patent 4862496 Issued on August 29, 1989. Estimated Expiration Date: 
December 16, 2006. 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.
December 16, 2006. 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 References 3394231 3536842 Path-finding scheme for a multistage switching network Method of providing virtual private network telephone service Integrated network controller for a dynamic nonhierarchical routing switching network Routing of network traffic Patent #: 4704724 Inventors
AssigneeApplicationNo. 06/942323 filed on 12/16/1986US Classes:379/221.01, Alternate routing340/2.23, Alternate routing379/221.06Algorithm (e.g., software, computer program)ExaminersPrimary: Brown, Thomas W.Attorney, Agent or FirmInternational ClassesH04Q 3/66 (20060101)H04Q 3/64 (20060101) Foreign Application Priority Data1985-12-18 GBAbstractA method and apparatus for routing traffic in a circuit switched network. A call between two nodes interconnected by a direct link is first offered to the direct route, and if that is blocked it is offered to a currently nominated two-link alternative route between the two nodes. If that route is busy, the call is lost, and a randomly chosen two-link route is assigned to be the new current nominated alternative route. The strategy is particularly effective because it is simple, available routes are quickly located and once one available route is found, that same route is used for rerouting further calls until it is full. Trunk reservation protection is applied on alternative routes.Other References
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