Administrator Guide

interfaces are listed. R2 has no filter, so it is allowed to forward both groups. As a result, Receiver 1 receives only one transmission, while
Receiver 2 receives duplicate transmissions.
Figure 99. Preventing a Source from Transmitting to a Group
The following table lists the location and description shown in the previous illustration.
Table 65. Preventing a Source from Transmitting to a Group — Description
Location Description
1/21
• Interface TenGigabitEthernet 1/21
• ip pim sparse-mode
• ip address 10.11.12.1/24
• no shutdown
1/31
• Interface TenGigabitEthernet 1/31
• ip pim sparse-mode
• ip address 10.11.13.1/24
• no shutdown
2/1
• Interface TenGigabitEthernet 2/1
• ip pim sparse-mode
568 Multicast Features