Configure IPv6 PIM-SSM

IPv6 PIM-SSM is one subset of IPv6 PIM-SM. In IPv6 PIM-SSM, do not need RP, BSR or RPT, and there is no SPT switching, but the receiving end DR directly adds to multicast source and sets up the shortest path tree (SPT) with source as root.

Configuration Condition

Before configuring IPv6 PIM-SSM, first complete the following tasks:

• Configure the network layer address of the interface, making the neighboring node network layer reachable
• Configure any unicast route protocol, making the intra-domain route reachable
• Enable the IPv6 PIM-SM protocol on all interfaces that need multicast route forwarding

Configure IPv6 PIM-SSM

Table 11-17 Configure IPv6 PIM-SSM

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  When using IPv6 PIM-SSM, the receiving end should enable MLDv2.
• When the receiver cannot be upgraded to MLDv2, you can use the IGMP SSM Mapping function to cooperate with IPv6 PIM-SSM.
• Ensure that the SSM multicast group address ranges configured on all devices in the domain are consistent. Otherwise, it may result in the abnormality of IPv6 PIM-SS.

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