PIM Sparse-Mode | 771
Similarly, in Figure 34-8, when PIM-SM snooping is enabled and multicast data is sent to VLAN members
of group G, the switches forward the data traffic from the server attached to Router B only to the router
(Router A) in the multicast group that should receive it. Without PIM-SM snooping, the switches would
flood the data to all connected routers, including Routers C and D.
Figure 34-9. PIM-SM Snooping: Data Forwarding
Router A
Router B
RP Source
Router C
Router D
Data
G Traffic
Layer 2 Network
with PIM Snooping
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