Which two statements are true about SSM implementations on Junos devices? (Choose two.)
A.
There is no need for an RP.
B.
The multicast receiver’s DR must have IGMPv3 enabled.
C.
SSM traffic must use the 232/8 range.
D.
ASM and SSM implementations can coexist in the same network.
PIM source-specific multicast (SSM) uses a subset of PIM sparse mode and IGMP version 3 (IGMPv3) to allow a client to receive multicast traffic directly from the source. PIM SSM uses the PIM sparse-mode functionality to create an SPT between the receiver and the source, but builds the SPT without the help of an RP.
By default, the SSM group multicast address is limited to the IP address range from 232.0.0.0 through 232.255.255.255. However, you can extend SSM operations into another Class D range by including the ssm-groups statement at the [edit routing-options multicast] hierarchy level. The default SSM address range from 232.0.0.0 through 232.255.255.255 cannot be used in the ssm-groups statement. This statement is for adding other multicast addresses to the default SSM group addresses. This statement does not override the default SSM group address range.
You can also configure the Junos OS to accept any-source multicast (ASM) join messages (*,G) for group addresses that are within the default or configured range of source-specific multicast (SSM) groups. This allows you to support a mix of any-source and source-specific multicast groups simultaneously.
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the correct answer is A & D
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