US 11,695,686 B2
Source-initiated distribution of spine node identifiers of preferred spine nodes for use in multicast path selection
Francesco Meo, San Jose, CA (US); Stig Ingvar Venaas, Oakland, CA (US); Rahul Savarapu Parameswaran, Union City, CA (US); Ramakrishnan Chokkanathapuram Sundaram, Fremont, CA (US); and Mankamana Prasad Mishra, Dublinca, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Apr. 19, 2021, as Appl. No. 17/234,115.
Application 17/234,115 is a continuation of application No. 16/453,044, filed on Jun. 26, 2019, granted, now 11,038,794.
Prior Publication US 2021/0243113 A1, Aug. 5, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/16 (2022.01); H04L 45/00 (2022.01); H04L 45/125 (2022.01)
CPC H04L 45/16 (2013.01) [H04L 45/125 (2013.01); H04L 45/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
at a router node configured for communication of multicast traffic in a network fabric comprising a plurality of spine nodes interconnected to a plurality of leaf nodes, and further configured as one of the leaf nodes,
sending a message for flooding the network fabric to communicate the message to other leaf nodes in the network fabric based on identifying an indication of communication of multicast traffic for a multicast group from a source device, the message including at least one spine node identifier of at least one excluded spine node to exclude from joining to the multicast group for the communication of the multicast traffic; and
forwarding the multicast traffic for the multicast group to one of the plurality of spine nodes other than the at least one excluded spine node indicated by the at least one spine node identifier.