Netgear GSM7352Sv1 7000 Series Managed Switch Administration Guide for Softwar - Page 281
IGMP Querier
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NETGEAR Managed Switches Software Administration Manual, Release 8.0 2. Under Multicast Router VLAN Configuration, scroll down to interface 1/0/3 and select the checkbox for that interface. Now 1/0/3 appears in the Interface field at the top. 3. Enter the following information in the Multicast Router VLAN Configuration. • In the VLAN ID field, enter 2. • Select Enable in the Multicast Router field. 4. Click Apply. IGMP Querier When the switch is used in network applications where video services such as IPTV, video streaming, and gaming are deployed, the video traffic would normally be flooded to all connected ports because such traffic packets usually have multicast Ethernet addresses. IGMP snooping can be enabled to create a multicast group to direct that traffic only to those users that require it. However, the IGMP snooping operation usually requires an extra network device-normally a router-that can generate an IGMP membership query and solicit interested nodes to respond. With the build-in IGMP Querier feature inside the switch, such an external device is no longer needed. Figure 14-6 IGMP Snooping and Querier v1.0, October 2009 14-7
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