Which protocol is used to propagate multicast join requests over the Cisco SD-WAN fabric?
Which protocol is used to propagate multicast join requests over the Cisco SD-WAN fabric?
The correct protocol used to propagate multicast join requests over the Cisco SD-WAN fabric is OMP (Overlay Management Protocol). OMP is designed specifically for SD-WAN environments to carry routing information, including multicast join/prune messages, policy information, and reachability information across the fabric. Other options like Auto-RP, ARP, and IGMP are either related to different functionalities or are not suitable for the SD-WAN architecture.
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/bridging-routing-segmentation-qos/vedge/bridging-routing-segmentation-qos-book/multicast-overlay-routing.html#:~:text=The%20Cisco%20SD%2DWAN%20multicast%20overlay%20software%20uses%20Protocol%20Independent,traffic%20on%20the%20overlay%20network.
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