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Synchronization of multicast information using bicasting

  • US 8,576,703 B2
  • Filed: 10/27/2010
  • Issued: 11/05/2013
  • Est. Priority Date: 03/19/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • selectively bicasting a multicast protocol-related packet, received at a processing component of a network device, to a first processor and a second processor based upon a multicast protocol-related packet type, wherein selectively bicasting comprises;

    upon determining the multicast protocol-related packet to be of a first type,sending, from the processing component, a copy of the multicast protocol-related packet to the first processor operating in active mode, the first processor performing a set of multicast routing-related functions in the active mode, andsending, from the processing component, a copy of the multicast protocol-related packet to the second processor operating in standby mode, the second processor not performing the set of multicast routing-related functions in the standby mode;

    updating, by the first processor, first multicast information maintained by the first processor based upon the copy of the multicast protocol-related packet received by the first processor; and

    updating, by the second processor, second multicast information maintained by the second processor based upon the copy of the multicast protocol-related packet received by the second processor.

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