Cisco SGE2000 Reference Guide - Page 157

Configuring Multicast Forwarding, IGMP Snooping

Page 157 highlights

Chapter SGE2000/SGE2000P Gigabit Ethernet Switch Reference Guide 9 Configuring Multicast Forwarding The Multicast section contains the following pages: • IGMP Snooping • Defining Multicast Bridging Groups • Defining Multicast Forwarding IGMP Snooping When IGMP Snooping is enabled globally, 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. • 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 the creation of the Multicast filtering database. To enable IGMP Snooping: 1. Click Bridging > Multicast > IGMP Snooping. The IGMP Snooping Page opens: Chapter 9: Configuring Multicast Forwarding 149 IGMP Snooping

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149
Chapter 9: Configuring Multicast Forwarding
IGMP Snooping
SGE2000/SGE2000P Gigabit Ethernet Switch Reference Guide
Chapter
9
Configuring Multicast Forwarding
The Multicast section contains the following pages:
IGMP Snooping
Defining Multicast Bridging Groups
Defining Multicast Forwarding
IGMP Snooping
When IGMP Snooping is enabled globally, 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.
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 the creation of the Multicast filtering database. To enable IGMP
Snooping:
1.
Click
Bridging
>
Multicast
>
IGMP Snooping
. The
IGMP Snooping Page
opens: