This topic is a chance to discuss more about the foundation to understand how multicast works when using Cisco Wireless LAN Controllers (WLCs). In addition, experts will cover questions about the best practices to identify and troubleshoot common issues when multicast is not working properly on Cisco Wireless LAN Networks, from the clear symptoms and common scenarios to their unique challenges and the best practices to mitigate them. others.
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Thanks for providing this valuable session Estefania & Jhosbell, please help to answer the remaining questions
In this case the multicast traffic is not forwarded since Multicast is not enabled in the WLC. This scenario is not supported, please refer: "Table 1. Platform Support for Global Multicast and Multicast Mode"
AP multicast mode is the multicast method that the controller uses in order to transport the multicast packets over CAPWAP to all or several access points at the same time. The controller performs multicasting in two modes, unicast and multicast. For further details refer: https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/81671-multicast-wlc-lap.html#anc4
The multicast group address is used in case you choose AP multicast mode as "Multicast". When you enable multicast mode on the controller, you must also configure a CAPWAP multicast group address. APs subscribe to the CAPWAP multicast group using IGMP. When you enable multicast mode and the controller receives a multicast packet from the wired LAN, the controller encapsulates the packet using CAPWAP and forwards the packet to the CAPWAP multicast group address.