Cell-based switch fabric with inter-cell control for regulating packet flow
First Claim
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1. A switch fabric implemented on a chip, comprising:
- a) an array of cells, each cell communicating with at least one other cell of said array,b) an I/O interface in communication with said array of cells for permitting exchange of data packets between said array of cells and components external to said array of cells;
wherein said array of cells includes;
a) a plurality of data channels for transporting data packets between the cells of said array; and
b) for each individual cell of said array, a respective plurality of control channels distinct from said data channels for conveying control information to said individual cell of said array, the respective plurality of control channels conveying control information from respective cells of said array;
c) each cell operative to control transmission of data packets to other cells of said array at least in part on a basis of the control information conveyed thereto.
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Abstract
A switch fabric implemented on a chip includes an array of cells and an I/O interface in communication with the array of cells for permitting exchange of data packets between the array of cells and components external to the array of cells. Each cell communicates with at least one other cell of the array, permitting an exchange of data packets between the cells of the array and an exchange of control information between the cells of the array. Each cell is operative to control transmission of data packets to other cells of the array at least in part on a basis of the control information. The control information is thus used to regulate the flow of data packets between cells.
65 Citations
36 Claims
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1. A switch fabric implemented on a chip, comprising:
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a) an array of cells, each cell communicating with at least one other cell of said array, b) an I/O interface in communication with said array of cells for permitting exchange of data packets between said array of cells and components external to said array of cells; wherein said array of cells includes; a) a plurality of data channels for transporting data packets between the cells of said array; and b) for each individual cell of said array, a respective plurality of control channels distinct from said data channels for conveying control information to said individual cell of said array, the respective plurality of control channels conveying control information from respective cells of said array; c) each cell operative to control transmission of data packets to other cells of said array at least in part on a basis of the control information conveyed thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification