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Data structure-less distributed fabric multicast

  • US 8,325,726 B2
  • Filed: 02/09/2010
  • Issued: 12/04/2012
  • Est. Priority Date: 02/09/2010
  • Status: Active Grant
First Claim
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1. A method implemented by a network device, the method comprising:

  • receiving, by an ingress packet forwarding engine of the network device, a packet with a multicast nexthop identifier;

    creating, by the ingress packet forwarding engine, a mask that includes addresses of egress packet forwarding engines to which to provide the packet;

    dividing, by the ingress packet forwarding engine, the mask into two portions;

    generating, by the ingress packet forwarding engine, two copies of the packet;

    providing, by the ingress packet forwarding engine, a first portion of the mask in a first copy of the packet; and

    forwarding, by the ingress packet forwarding engine, the first copy of the packet to an address of an egress packet forwarding engine provided in the first portion of the mask.

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