Multiplex communications – Pathfinding or routing – Through a circuit switch
Reexamination Certificate
2011-01-25
2011-01-25
Pham, Chi H (Department: 2471)
Multiplex communications
Pathfinding or routing
Through a circuit switch
C370S377000, C370S384000
Reexamination Certificate
active
07876746
ABSTRACT:
An apparatus includes at least one input circuit to receive frames of data, the frames of data comprising first frames each having first data, and a second frame having second data. The apparatus includes at least one output circuit to transmit the first frames; a forwarding engine to transfer the first frames from the at least one input circuit to the at least one output circuit; and a first memory to store switch information. The apparatus operates according to the switch information. The at least one input circuit includes a remote management unit comprising a first memory controller to modify the switch information stored in the first memory according to the second data in the second frame, and a second memory; a second memory controller to write each of the frames of data to the second memory; and a remote management enable circuit to enable the remote management unit when the second frame is a remote management frame. The first memory controller writes the second data from the second memory to the first memory when the remote management unit is enabled by the remote management enable circuit and the remote management frame includes a valid write command.
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IEEE Std 802.3-2002 (Revision of IEEE Std 802.3®, 2000 Edition) IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications; LAN/MAN Standards Committee of the IEEE Computer Society; Mar. 8, 2002; 578 pages.
IEEE Std 802.3-2002 (Revision of IEEE Std 802.3®, 2000 Edition) IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 3: Carrier sense multiple access with Collision Detection (CSMA/CD) access method and physical layer specifications; Section Two: This section includes Clauses 21 through 22 and Annexes 22A through 32A; LAN/MAN Standards Committee of the IEEE Computer Society; Mar. 8, 2002; 582 pages.
IEEE Std 802.3-2002 (Revision of IEEE Std 802.3®, 2000 Edition) IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications; Section Three: This section includes Clauses 34 through 43 and Annexes 36A through 43C; LAN/MAN Standards Committee of the IEEE Computer Society; Mar. 8, 2002; 379 pages.
Chou Hong Yu
Pannell Donald
Hyun Soon-Dong D
Marvell International Ltd.
Pham Chi H
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