Redundancy in voice and data communications systems
AssigneeCisco Technology, Inc.
InventorsFrank K. Bradbury, Parvez Khan, Steven R. Dunstan
Life of this patent
Estimating the term…
Abstract
A method includes receiving information at an interface circuit and providing the information from the interface circuit to a processing circuit through a direct communications path between the interface circuit and a processing circuit, which processes the information received from the interface circuit. The method further includes providing the information from the interface circuit to the processing circuit via a crosspoint switch in response to a failure of the direct communications path, wherein the direct communication does not pass through the crosspoint switch.
Claims20
A method comprising:
- receiving information at an interface circuit;
- providing information from the interface circuit to a processing circuit through a direct communications path between the interface circuit and the processing circuit;
- processing the information at the processing circuit;
- and
- providing information from the interface circuit to the processing circuit via a crosspoint switch in response to a failure of the direct communications path;
- wherein the direct communications path does not pass through the crosspoint switch and wherein the crosspoint itch is directly interposed between the processing circuit and the interface circuit.
A method comprising:
- receiving first information at a first interface circuit and second information at a second interface circuit;
- sending the first information through a first direct communications path between the first interface circuit and a first processing circuit;
- sending the second information through a second direct communications path between the second interface circuit and a second processing circuit;
- processing the first information at the first processing circuit;
- processing the second information at the second processing circuit;
- and
- providing the first information from the first interface circuit to the first processing circuit via a crosspoint switch in response to a failure of the first direct communications path between the first interface circuit and the first processing circuit;
- providing the second information from the second interface circuit to the second processing circuit via the crosspoint switch in response to a failure of the second direct communications path between the second interface circuit and the second processing circuit;
- wherein the first direct communication between the first interface circuit and the first processing circuit does not pass through the crosspoint switch, and wherein the second direct communication between the second interface circuit and the second processing circuit does not pass through the crosspoint switch.
Logic encoded in non-transitory tangible medium that includes code for execution that, when executed by a processor, performs operations comprising:
- causing information to be sent through a direct communications path from an interface circuit to a processing circuit to be processed at the processing circuit;
- and
- causing the information to be provided from the interface circuit to the processing circuit via a crosspoint switch upon failure of the direct communications path;
- wherein the direct communications path does not pass through the crosspoint switch and wherein the crosspoint switch is directly interposed between the processing circuit and the interface circuit.
Dependencies are inferred from the claim text.