Netgear FSM726v3 7000 Series Managed Switch Administration Guide for Software - Page 524

MLD Snooping, In the MLD Routing Interface Configuration, select

Page 524 highlights

NETGEAR Managed Switches Software Administration Manual, Release 8.0 c. In the MLD Routing Interface Configuration, select Enable in the Admin Mode field. d. Click Apply. MLD Snooping 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. This list is constructed by snooping IPv6 multicast control packets. MLD is a protocol used by IPv6 multicast routers to discover the presence of multicast listeners (nodes wishing 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. The switch can be configured to perform MLD Snooping and IGMP Snooping simultaneously. 30-19 v1.0, October 2009 MLD

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NETGEAR Managed Switches Software Administration Manual, Release 8.0
30-19
MLD
v1.0, October 2009
c.
In the MLD Routing Interface Configuration, select
Enable
in the Admin Mode
field.
d.
Click
Apply
.
MLD Snooping
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. This list is constructed by snooping IPv6 multicast control packets.
MLD is a protocol used by IPv6 multicast routers to discover the presence of multicast listeners (nodes
wishing 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. The switch can be configured to perform MLD Snooping
and IGMP Snooping simultaneously.