US 12,341,684 B2
Efficiently forwarding bidirectional multicast traffic at a virtual gateway device
Tathagata Nandy, Bangalore (IN); and Subramanian Muthukumar, Bangalore (IN)
Assigned to Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed by Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed on Oct. 18, 2023, as Appl. No. 18/489,486.
Prior Publication US 2025/0133009 A1, Apr. 24, 2025
Int. Cl. G06F 13/00 (2006.01); H04L 12/18 (2006.01); H04L 12/46 (2006.01); H04L 45/00 (2022.01); H04L 45/24 (2022.01)
CPC H04L 45/22 (2013.01) [H04L 12/1886 (2013.01); H04L 12/4641 (2013.01); H04L 45/245 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
electing, by a first network device in a subnet, the first network device as a designated forwarder (DF) of multicast traffic in the subnet for a Rendezvous Point (RP) of a multicast group, wherein the first network device operates in conjunction with a second network device as a virtual gateway network device of the subnet, and wherein the second network device is elected as another DF for the RP;
electing, by the first network device based on a selection parameter, a forwarding device for forwarding the multicast traffic from the virtual gateway network device;
determining, by the first network device, whether the first network device is elected as the forwarding device;
in response to determining that the first network device is elected as the forwarding device, programming, in forwarding hardware of the first network device, a forwarding entry for forwarding the multicast traffic; and
forwarding the multicast traffic associated with the multicast group based on the forwarding entry.