10 CONFIGURING IGMP SNOOPINGIntroduction This section contains information for configuring IGMP Snooping.When IGMP Snooping is enabled globally, all IGMP packets are forwardedto the CPU. The CPU analyzes the incoming packets and determines:■ Which ports want to join which Multicast groups.■ Which ports have Multicast routers generating IGMP queries.■ Which routing protocols are forwarding packets and Multicast traffic.Ports requesting to join a specific Multicast group issue an IGMP report,specifying that Multicast group is accepting members. This results in thecreation of the Multicast filtering database.This section contains the following topic:■ Defining IGMP Snooping
