Techniques are presented herein that support an optimized Layer 2 (L2) multicast capability in software-defined access (SDA) fabric environments by modifying Internet Group Management Protocol (IGMP) snooping, IGMP forwarding, and multicast forwarding behavior in such environments. Such modifications help to address multiple customer requirements where customers need multicast traffic to be forwarded at L2, especially for Internet of Things (IoT) devices. Aspects of the presented techniques encompass modifying multicast router (mrouter) learning, handling IGMP control traffic, and handling sources and receivers.
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Kumar, Rajeev and Hooda, Sanjay, "SUPPORTING L2 MULTICAST IN L2VNI-ONLY DEPLOYMENTS", Technical Disclosure Commons, (August 03, 2022)