US Patent 7839850 Forming equal cost multipath multicast distribution structures
Patent 7839850 was granted and assigned to Juniper Networks on November, 2010 by the United States Patent and Trademark Office.
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Techniques allow network devices to set up multiple multicast distribution structures for a given multicast group and source. According to the techniques, a multicast protocol is extended to include an instance number in the control messages, where the instance number corresponds to one of a plurality of instances for the multicast group and source. The network device sends a join request for each of the N instances for the multicast group to a plurality of upstream routers. Each of the join requests specifies a different instance of the multicast group to be joined. The source device for the multicast group selects one of the N instances, for example using a unicast Equal Cost Multipath (ECMP) hashing algorithm, and sends multicast content for the multicast group to via the multicast distribution structure corresponding to the selected one of the N instances.
US Patent 07839850 Forming equal cost multipath multicast distribution structures US Patent 7839850 Forming equal cost multipath multicast distribution structures
US Patent 07839850 Forming equal cost multipath multicast distribution structures
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