Mechanisms are provided to ensure the Protocol Independent Multicast (PIM) Assert mechanism works in the presence of Ethernet Virtual Private Networking (EVPN) multi-homing in a network. A mechanism synchronizes PIM Assert information across multi-home peers, processes the PIM assert received via EVPN routes, and generates a PIM Assert based on the PIM assert received over EVPN. In addition, a mechanism is provided for deterministic PIM Designated Router (DR) election between multi-homed and non-multi-homed peers in a local area network (LAN). PIM Hellos are synchronized to have the same list of neighbors across multi-home peers. A procedure is provided to have DR election in case one of the EVPN multi-home peer is eligible to be PIM DR.
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Mishra, Mankamana; Sajassi, Ali; Krattiger, Lukas; Ghein, Luc De; and Kumar, Nitin, "EVPN MULTI-HOMING EXTENSION TO AVOID DUPLICATE TRAFFIC ON LAN", Technical Disclosure Commons, (July 31, 2020)