US 12,113,702 B1
Multicasting using selective advertisement of EVPN routes
Swati Patel, Fremont, CA (US); Bharathram Pattabhiraman, San Jose, CA (US); and Sandeep Betha, Burnaby (CA)
Assigned to ARISTA NETWORKS, INC., Santa Clara, CA (US)
Filed by Arista Networks, Inc., Santa Clara, CA (US)
Filed on Jul. 14, 2023, as Appl. No. 18/352,857.
Int. Cl. G06F 15/16 (2006.01); H04L 45/24 (2022.01); H04L 45/44 (2022.01); H04L 45/74 (2022.01)
CPC H04L 45/24 (2013.01) [H04L 45/44 (2013.01); H04L 45/74 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method in a network device for advertising Ethernet Virtual Private Network (EVPN) routes in a network, the method comprising:
receiving a multicast packet for a multicast group from a sender;
determining whether the sender of the multicast packet is directly connected to the network device or is not directly connected to the network device;
in response to a determination that the sender of the multicast packet is directly connected to the network device:
advertising an EVPN route that informs a plurality of edge devices on the network about the multicast group and underlay tunnel information; and
multicasting the received multicast packet to the plurality of edge devices; and
in response to a determination that the sender of the multicast packet is not directly connected to the network device, multicasting the received multicast packet to receivers that are directly connected to the network device without advertising the EVPN route to the plurality of edge devices on the network.