Chapter 8: Multicast; Igmp Snooping - Cisco SLM224G4S Administration Manual

Multicast

IGMP Snooping

Multicast
IGMP Snooping
Cisco Small Business SLM Series Smart Switches Administration Guide
The Multicast configuration options are as follows:
•
IGMP Snooping
•
Bridge Multicast
•
Bridge Multicast Forward All
When IGMP Snooping is enabled, all IGMP packets are forwarded to 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.
A host connected to the port requesting to join a specific Multicast group issues
an IGMP report, specifying which Multicast group that it wishes to join. This results
in the creation of the Multicast filtering database.
IGMP Snooping
To open the window:
8
62