Input port routing circuit that performs output port filtering
First Claim
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1. A method for information packet transmission, said method comprising the steps of:
- determining, at an input port, the presence of an output port packet transmission protocol violation from packet header information; and
preventing transmission of said packet to a queue of packets for transmission to at least one output port.
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Abstract
The filtering operations normally performed at the output port side of an Infiniband (or similar protocol) routing switch are performed in parallel at the input side to prevent data packets from being placed on a queue from which they would ordinarily ultimately be discarded, thus removing “bad” packets that would normally have a negative impact on the bandwidth of the switch. Bad data packets thus do not consume space in a central queue nor bandwidth in a crossbar switch.
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Citations
7 Claims
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1. A method for information packet transmission, said method comprising the steps of:
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determining, at an input port, the presence of an output port packet transmission protocol violation from packet header information; and
preventing transmission of said packet to a queue of packets for transmission to at least one output port. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computer readable medium having computer executable instructions for causing a computer to determine, at an input port, the presence of an output port packet transmission protocol violation from packet header information and to prevent transmission of said packet to a queue of packets for transmission to at least one output port.
Specification