To use the IP multicast routing feature on the switch, the switch or active switch must be running the IP Services feature set. IP addresses. AOS-CX 10. 13 Multicast Guide for 6200, 6300, 6400, 8320, 8325, 8360, 8400, 10000 Switch Series AOS-CX10. While a Multilayer Switch is used as “core” in this example, that device could've been a regular router and similar configuration would apply. Multicast is used to send a stream of data (like a video stream) to many endpoints at once using a bandwidth-efficient method. The Access Switch on the. Multicast makes the mass network communication efficient by enabling nodes to transmit data to multiple receivers simultaneously and allowing the receivers to subscribe.