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Self-routing multicast in a software defined network fabric

  • US 9,300,483 B2
  • Filed: 03/15/2013
  • Issued: 03/29/2016
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a switch controller comprising a hardware processor and logic integrated with and/or executable by the processor, the logic being configured to;

    receive a multicast data stream join request from a source device in a network, wherein the multicast join request is an internet group management protocol (IGMP) join request;

    create a multipath identifier (ID) for the multipath data stream;

    create a series of path identifiers (IDs) for each intermediate switch in the network based on a local network topology database, each path ID being associated with a desired output port bitmap; and

    transmit the multipath ID and a path ID to a source of the multicast data stream, the path ID corresponding to the source of the multicast join request,wherein broadcast and/or multicast routing tables are not used by the intermediate switches due to implementation of the path IDs specific to each intermediate switch to create a broadcast group.

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