×

Communication method and communications system

  • US 6,901,074 B1
  • Filed: 12/01/1999
  • Issued: 05/31/2005
  • Est. Priority Date: 12/03/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A communications method in a communications system having one or more communication nodes each of which is provided with an information processor, said communications method comprising the steps of:

  • accepting an incoming communication packet with a priority at one of the communication nodes; and

    controlling, when a plurality of communication packets accepted at the step of accepting at said one of the communication nodes have the same output destination, a communication packet with a higher priority to be outputted first, wherein said step of controlling comprises the substeps of;

    buffering, at said one of the communication nodes, by using a plurality of packet overtaking buffers provided for individual input ports, a communication packet to be overtaken in accordance with the priority when a collision takes place between communication packets;

    making an output request from each input port side to one or more output port sides, the output request with the priority assigned to an input communication packet;

    carrying out arbitration of output from said each input port side using a priority arbiter for the communication packets which is allocated to each output port; and

    outputting an input packet to each output port side independently in accordance with the output arbitration.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×