Netgear GS418TPP User Manual - Page 197

ProSAFE 8-Port or 16-Port Gigabit Smart Managed Switch Model GS418TPP, GS510TLP, and GS510TPP 8. In the Querier VLAN Address field, specify the snooping querier address to be used as the source address in periodic MLD queries sent on the specified VLAN. 9. Click the Apply button. The updated configuration is sent to the switch. Configuration changes take effect immediately. The following table describes the nonconfigurable information displayed on the page. Table 51. MLD Snooping Querier VLAN Configuration information Field Description Operational State The operational state of the MLD snooping querier on a VLAN. It can be in any of the following states: • Querier. Snooping switch is the querier in the VLAN. The snooping switch sends out periodic queries with a time interval equal to the configured querier query interval. If the snooping switch sees a better querier in the VLAN, it moves to non-querier mode. • Non-Querier. Snooping switch is in non-querier mode in the VLAN. If the querier expiry interval timer is expired, the snooping switch moves into querier mode. • Disabled. Snooping querier is not operational on the VLAN. The snooping querier moves to disabled mode when MLD snooping is not operational on the VLAN or when the querier address is not configured or the network management address is also not configured. Operational Version The operational MLD protocol version of the querier. Last Querier Address The IP address of the last querier from which a query was snooped on the VLAN. Last Querier Version The MLD protocol version of the last querier from which a query was snooped on the VLAN. Operational Max Response Time The maximum response time to be used in the queries that are sent by the snooping querier. Configure Multicast VLAN Registration IGMP snooping helps limit multicast traffic when member ports are in the same VLAN. However, when ports belong to different VLANs, a copy of the multicast stream is sent to each VLAN with member ports in the multicast group. Multicast VLAN registration (MVR) eliminates the need to duplicate the multicast traffic when multicast group member ports belong to different VLANs. MVR uses a dedicated multicast VLAN to forward multicast traffic over the L2 network. Only one multicast source VLAN (MVLAN can be configured per switch, and it is used only for certain multicast traffic, such as traffic from an IPTV application, to avoid duplication of multicast streams for clients in different VLANs. Clients can dynamically join or leave the multicast VLAN without interfering with their membership in other VLANs. MVR, like IGMP snooping, allows a Layer 2 switch to listen to IGMP messages to learn about multicast group membership. You can configure basic, advanced, group, interface, or group membership settings. Configure Switching 197