32.3 IGMP snooping

The following explains IGMP snooping functionality and its operation. The format and timers for IGMP messages sent and received by the Switch conform to RFC 2236. Also, the format and values set for IGMP version 3 (abbreviated hereafter to IGMPv3) messages conform to RFC 3376.

<Structure of this section>

• 32.3.1 Learning MAC Addressing

• 32.3.2 Layer 2 forwarding of IPv4 multicast packets

• 32.3.3 Connection with the multicast router

• 32.3.4 IGMP querier function

• 32.3.5 IGMP Fast-Leave Function