Mld Snooping Overview; Configure The Global Mld Snooping Settings - NETGEAR MS510TX User Manual

MLD Snooping Overview

Multicast Listener Discovery (MLD) is a protocol that is used by IPv6 multicast routers to
discover the presence of multicast listeners (nodes that want to receive IPv6 multicast
packets) on its directly attached links and to discover which multicast packets are of interest
to neighboring nodes. MLD 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.
The switch can snoop on both MLDv1 and MLDv2 protocol packets and bridge IPv6 multicast
data based on destination IPv6 multicast MAC addresses. You can configure the switch to
perform MLD snooping and IGMP snooping simultaneously.
In IPv4, Layer 2 switches can use IGMP snooping to limit the flooding of multicast traffic by
dynamically configuring Layer 2 interfaces so that multicast traffic is forwarded to only those
interfaces associated with IP multicast address. In IPv6, MLD snooping performs a similar
function. With MLD snooping, IPv6 multicast data is selectively forwarded to a list of ports
that want to receive the data, instead of being flooded to all ports in a VLAN. The switch
constructs this list by snooping IPv6 multicast control packets.
The switch uses MLD snooping to build a forwarding list for multicast traffic.

Configure the Global MLD Snooping Settings

You can enable MLD snooping globally.

To enable MLD snooping globally:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
The login window opens.
4. Enter the switch's password in the Password field.
The default password is password.
The System Information page displays.
5. Select Switching> Multicast > MLD Snooping > Configuration.
The MLD Snooping Configuration page displays. The page also displays the VLAN IDs
Enabled for MLD Snooping section.
Smart Managed Pro Switches MS510TX and MS510TXPP
Configure Switching
Access the Switch
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on page 12.