Netgear XCM8810 Chassis Hardware Installation Guide - Page 1250

NETGEAR 8800 Chassis Switch CLI Manual configure mld snooping timer configure mld snooping timer Description Configures the MLD snooping timers. Syntax Description router_timeout host_timeout Specifies the time in seconds before removing a router snooping entry. Specifies the time in seconds before removing a host's group snooping entry. Default The router timeout default setting is 260 seconds. The host timeout setting is 260 seconds. Usage Guidelines Timers should be set to approximately 2.5 times the router query interval in use on the network. Specify the following: • router timeout-The maximum time, in seconds, that a router snooping entry can stay without receiving a router report. The range is 10 to 214,748,364 seconds (6.8 years). The default setting is 260 seconds. • host timeout-The maximum time, in seconds, that a group snooping entry can stay without receiving a group report. The range is 10 to 214,748,364 seconds (6.8 years). The default setting is 260 seconds. MLD snooping is a Layer 2 function of the switch. It does not require multicast routing to be enabled. The feature reduces the flooding of IPv6 multicast traffic. On the VLAN, MLD snooping optimizes the usage of network bandwidth and prevents multicast traffic from being flooded to parts of the network that do not need it. The switch does not reduce any IP multicast traffic in the local multicast domain (FF02::x). MLD snooping is enabled by default on the switch. MLD snooping expects at least one device on every VLAN to periodically generate MLD query messages. Without an MLD querier, the switch eventually stops forwarding IPv6 multicast packets to any port, because the MLD snooping entries times out, based on the value specified in host timeout. Example The following command configures the MLD snooping timers: configure mld snooping timer 600 600 disable mld disable mld {vlan } 1250 | Chapter 27. IPv6 Multicast Commands