Netgear GSM4248P User Manual - Page 269
Multicast Listener Discovery snooping, Con MLD snooping automatically with MLD Plus mode
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AV Line of Fully Managed Switches M4250 Series Main User Manual Table 69. IGMP snooping group information Field VLAN ID Subscriber MC Group Interface Type Timeout (secs) Description The ID of the VLAN on which the host sends IGMP member join requests. The IP address and MAC address of the host that sends IGMP member join requests. The multicast IP address and MAC address that the subscriber is registered to. The interface on which the IGMP member join requests us detected. The IGMP protocol version. The time that the most recent update for this host expires. Multicast Listener Discovery snooping In IPv6 networks, Multicast Listener Discovery (MLD) snooping performs a similar function as IGMP in IPv4 networks. With MLD snooping, IPv6 multicast data is selectively forwarded to ports that are configured to receive the data, instead of being flooded to all ports in a VLAN. The ports are determined by snooping IPv6 multicast control packets. A multicast listener is a device that is configured to receive IPv6 multicast packets. MLD is used by IPv6 multicast routers to discover the presence of multicast listeners on its directly-attached links and to discover which multicast packets are of interest to neighboring devices. The MLD protocol is derived from IGMP. MLD version 1 (MLDv1) is equivalent to IGMPv2, and MLD version 2 (MLDv2) is equivalent to IGMPv3. MLD is a subprotocol of Internet Control Message Protocol version 6 (ICMPv6), and MLD messages are a subset of ICMPv6 messages, identified in IPv6 packets by a preceding Next Header value of 58. Configure MLD snooping automatically with MLD Plus mode MLD Plus mode lets you automatically configure MLD snooping, which is used to build forwarding lists for IPv6 multicast traffic. You can also configure MLD snooping manually (see Configure MLD snooping manually on page 271). Configure Switching Information 269 Main User Manual
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