Users Guide

Table Of Contents
976 Layer-2 Multicast Features
Case Study on a Real-World Network Topology
Multicast Snooping Case Study
Figure 24-36 shows the topology that the scenarios in this case study use.
Figure 24-36. Case Study Topology
The topology in Figure 24-36 includes the following elements:
Snooping Switches: D1, D2, D3 with IGMP snooping enabled on VLANs
10, 20
Multicast Router: D4 with PIM-SM enabled on VLANs 10, 20
Multicast Listeners: Client A-G
Multicast Sources: Server A – 239.20.30.40, Server B – 239.20.30.42