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IGMP SSM mapping configuration example
Network requirements
As shown in Figure 27:
• The PIM-SM domain uses both the ASM model and SSM model for multicast delivery.
GigabitEthernet 2/1/3 on Router D serves as the C-BSR and C-RP. The SSM group range is
232.1.1.0/24.
• IGMPv3 runs on GigabitEthernet 2/1/1 on Router D. The receiver host runs IGMPv2, and does not
support IGMPv3. Therefore, the receiver host cannot specify expected multicast sources in its
membership reports.
• Source 1, Source 2, and Source 3 send multicast packets to multicast groups in the SSM group
range.
Configure the IGMP SSM mapping feature on Router D so that the receiver host can receive multicast
data from Source 1 and Source 3 only.
Figure 27 Network diagram
Table 6 Interface and IP address assignment
Device Interface IP address
Device
Interface
IP address
Source 1 — 133.133.1.1/24 Source 3 — 133.133.3.1/24
Source 2 — 133.133.2.1/24 Receiver — 133.133.4.1/24
Router A
GigabitEthernet
2/1/1
133.133.1.2/24 Router C
GigabitEthernet
2/1/1
133.133.3.2/24
Router A
GigabitEthernet
2/1/2
192.168.1.1/24 Router C
GigabitEthernet
2/1/2
192.168.3.1/24
Router A
GigabitEthernet
2/1/3
192.168.4.2/24 Router C
GigabitEthernet
2/1/3
192.168.2.2/24
Router B
GigabitEthernet
2/1/1
133.133.2.2/24 Router D
GigabitEthernet
2/1/1
133.133.4.2/24
Router B
GigabitEthernet
2/1/2
192.168.1.2/24 Router D
GigabitEthernet
2/1/2
192.168.3.2/24
Router B
GigabitEthernet
2/1/3
192.168.2.1/24 Router D
GigabitEthernet
2/1/3
192.168.4.1/24
PIM-SM
Router A
Router B Router C
Router D
Receiver
Source 2
Source 1
Source 3
GE2/1/1
GE2/1/2
GE2/1/3
GE2/1/1 GE2/1/3
GE2/1/2
GE2/1/1
GE2/1/1
GE2/1/3
GE2/1/3
GE2/1/2
GE2/1/2