Backplane interface adapter
First Claim
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1. A backplane interface adapter comprising:
- at least one receiver that receives input cells carrying packets of data;
at least one cell generator that generates encoded cells which include the packets of data from the input cells; and
at least one transmitter that transmits the generated cells to a switching fabric, wherein each input cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent, and further comprising;
a traffic sorter coupled between said at least one receiver and said at least one cell generator, wherein said traffic sorter sorts said received input cells based on said destination slot identifier.
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Abstract
A backplane interface adapter for a network switch. The backplane interface adapter includes at least one receiver that receives input cells carrying packets of data; at least one cell generator that generates encoded cells which include the packets of data from the input cells; and at least one transmitter that transmits the generated cells to a switching fabric. The cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent. The generated cells include in-band control information.
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Citations
20 Claims
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1. A backplane interface adapter comprising:
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at least one receiver that receives input cells carrying packets of data;
at least one cell generator that generates encoded cells which include the packets of data from the input cells; and
at least one transmitter that transmits the generated cells to a switching fabric, wherein each input cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent, and further comprising;
a traffic sorter coupled between said at least one receiver and said at least one cell generator, wherein said traffic sorter sorts said received input cells based on said destination slot identifier. - View Dependent Claims (2, 3, 4, 5)
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6. A backplane interface adapter comprising:
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at least one receiver that receives input cells carrying packets of data;
at least one cell generator that generates encoded cells which include the packets of data from the input cells; and
at least one transmitter that transmits the generated cells to a switching fabric;
a plurality of send queues coupled between said at least one cell generator and said at least one transmitter, wherein said at least one cell generator stores said generated cells in said plurality of send queues; and
a switching fabric transmit arbitrator that arbitrates the order in which data stored in said send queues is sent by the at least one transmitter to the switching fabric, wherein each send queue stores a respective group of cells corresponding to a respective originating source packet processor and a destination slot identifier.
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7. A backplane interface adapter for interfacing with a switching fabric of a network switch, the network switch for switching packets in a network, the backplane interface adapter comprising:
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at least one receiver that serially receives cells from the switching fabric via a full duplex serial link;
at least one transmitter that serially transmits cells to the switching fabric via a full duplex serial link;
wherein each said full duplex serial link is capable of handling full duplex traffic of at least 2.5 gigabits/second, and wherein at least some of the cells comprise in-band state information and at least one byte of a said packet; and
further comprising a second receiver that receives processed said packets from an at least 10 gigabit per second Ethernet packet processor of the network switch, wherein the backplane interface adapter includes a sorter circuit that sorts the processed packets having a local destination slot from the processed packets having a global destination slot across the switching fabric. - View Dependent Claims (8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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Specification