Patent ID: 8984206
Filing Date: 2015-03-17
Classification: G06F

Abstract:
1. A computer-implemented method to implement a scheduling scheme for a crossbar scheduler configured to provide distributed request-grant-accept arbitration between input group arbiters and output group arbiters in a distributed switch, the method comprising: receiving, at a output group arbiter communicably coupled to an output group, a request signal and a count from a input group arbiter communicably coupled to a first input group, the output group comprising a plurality of output ports of the distributed switch, the first input group comprising a plurality of input ports of the distributed switch, the request signal indicating that one or more of the input ports of the first input group arbiter have queued data packets targeting a set of output ports including a first output port of the output group arbiter, the count indicating a number of input ports of the first input group having queued data packets targeting the set of output ports; and performing a predefined arbitration operation for at least one input link of the first input group identified as having queued data packets targeting the set of output ports, wherein the predefined arbitration operation comprises: