Netgear M5300-52G3 Web Management User Guide - Page 163

ProSafe M5300 Switch Multicast Router VLAN Configuration This page configures the interface to only forward the snooped IGMP packets that come from VLAN ID () to the multicast router attached to this interface. The configuration is not needed most of the time since the switch will automatically detect the presence of a multicast router and forward IGMP packets accordingly. It is only needed when you want to make sure that the multicast router always receives IGMP packets from the switch in a complex network. To access the Multicast Router VLAN Configuration page, click Switching Multicast  IGMP Snooping  Multicast Router VLAN Configuration. 1. Select the check box associated with each interface you want to configure. Select the check box in the heading row to apply the same settings to all interfaces. 2. Use VLAN ID to select the VLAN ID for which the Multicast Router Mode is to be Enabled or Disabled. 3. Use Multicast Router to enable or disable multicast router for the Vlan ID. 4. Click APPLY to update the switch with the changes. 5. Click CANCEL to abandon the changes. IGMP Snooping Querier IGMP snooping requires that one central switch or router periodically query all end-devices on the network to announce their multicast memberships. This central device is the IGMP querier. The IGMP query responses, known as IGMP reports, keep the switch updated with the current multicast group membership on a port-by-port basis. If the switch does not receive updated membership information in a timely fashion, it will stop forwarding multicasts to the port where the end device is located. These pages enable you to configure and display information on IGMP snooping queriers on the network and, separately, on VLANs. Configuring Switching Information 163