Distributed automatic route selection using RIP caching
AssigneeMitel Corporation
InventorsBabak Esfandiari, Thomas Gray
Life of this patent
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Abstract
A RIP-based caching mechanism for bids in a distributed automatic route selection system for a network of PBXs. The PBXs are interconnected for propagating bid requests and replies therebetween. A cache table is maintained in each one of the PBXs for storing cached bid values for unused ones of the neighboring PBXs from whom replies have not been received responsive to a bid request. A subscribers table is also maintained in each PBX for identifying additional ones of the PBXs to whom bid value updates must be sent for updating their cache tables.
Claims7
In a distributed automatic routing selection system for a network of PBXs, said PBXs being interconnected for propagating bid requests and replies therebetween, the improvement comprising maintaining in each one of said PBXs a cache table for storing cached bid values for unused ones of said PBXs from whom replies have not been received responsive to said bid requests, and a subscribers table for identifying additional ones of said PBXs to which each said one of said PBXs subscribes updates to said cache table.
A PBX storing a cache table for storing cached bid values for unused PBXs in a network from whom replies have not been received responsive to bid requests, and a subscribers table for identifying additional PBXs to which bid value updates are sent for updating cache tables therein.
Dependencies are inferred from the claim text.