3-35Configuring IGMP SnoopingThis section contains information for configuring IGMP Snooping.When IGMP Snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes theincoming packets and determines:z Which ports want to join which Multicast groups.z Which ports have Multicast routers generating IGMP queries.z Which routing protocols are forwarding packets and Multicast traffic.Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast groupis accepting members. This results in the creation of the Multicast filtering database.This section contains the following topic:z Defining IGMP SnoopingDefining IGMP SnoopingThe IGMP Snooping Setup Page allows network managers to define IGMP Snooping parameters forVLANs.Click Device > IGMP Snooping > Setup. The IGMP Snooping Setup Page opens.Figure 3-37 IGMP Snooping Setup PageThe IGMP Snooping Setup Page contains the following fields:Table 3-28 IGMP Snooping Setup Page item descriptionItem DescriptionIGMP SnoopingStatusDefines whether IGMP Snooping is enabled on the switch. The possible fieldvalues are:z Enabled: Indicates that IGMP Snooping is enabled on the switch.z Disabled: Indicates that IGMP Snooping is disabled on the switch. This isthe default value.IGMP Query StatusDefines whether IGMP Query is enabled on the switch. The possible fieldvalues are:z Enabled: Indicates that IGMP Query is enabled on the switch.z Disabled: Indicates that IGMP Query is disabled on the switch. This is thedefault value.
