US 11,811,546 B2
Selective multicast ethernet tag extension for optimal source driven multicast forwarding
Mankamana Prasad Mishra, San Jose, CA (US); Ali Sajassi, San Ramon, CA (US); Ijsbrand Wijnands, Leuven (BE); Krishnaswamy Muddenahally Ananthamurthy, San Ramon, CA (US); and Jayashree Subramanian, Cary, NC (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Sep. 13, 2021, as Appl. No. 17/472,774.
Application 17/472,774 is a continuation of application No. 16/858,978, filed on Apr. 27, 2020, granted, now 11,159,337.
Prior Publication US 2022/0200814 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/18 (2006.01); H04L 12/46 (2006.01); H04L 9/40 (2022.01); H04L 45/74 (2022.01); H04L 47/724 (2022.01); H04L 45/16 (2022.01)
CPC H04L 12/185 (2013.01) [H04L 12/4641 (2013.01); H04L 45/16 (2013.01); H04L 45/74 (2013.01); H04L 47/724 (2013.01); H04L 63/0272 (2013.01)] 16 Claims
OG exemplary drawing
 
1. In a networking environment that includes at least a first node and a second node configured as Ethernet Virtual Private Networking (EVPN) peers of each other on an EVPN subnet across a core network, a method performed by the first node comprising:
receiving a multicast join request from a receiver endpoint, the multicast join request including a source address and a multicast group address of a source of a multicast stream;
constructing a Selective Multicast Ethernet Tag (SMET) EVPN control plane message, the SMET EVPN control plane message including an Internet Group Management Protocol (IGMP) membership report corresponding to the multicast join request and a receiver identifier corresponding to a second node; and
transmitting the SMET EVPN control plane message to a third node.