Milan Technology MIL-SME801P - Manual (Page 120)

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5-4-6. Forwarding and Filtering
5-4-6-1. IGMP Snooping
The switch supports IP multicasting. You can enable IGMP via the web
management’s configuration screen. In addition, you can view different
multicast groups, VIDs and member ports, and IP multicast addresses that
range from 224.0.0.0 through 239.255.255.255.
The Internet Group Management Protocol (IGMP) is an internal protocol of
the Internet Protocol (IP) suite. IP manages multicast traffic by using
switches, routers, and hosts that support IGMP. Enabling IGMP allows the
ports to detect IGMP queries and report packets and manage IP multicast
traffic through the switch.