Configuring IPv6 PIM-SM in the SSM Model
Pre-configuration Tasks
Before configuring IPv6 PIM-SM in the SSM model, configure an IPv6 unicast routing protocol to ensure that unicast routes on the network are reachable.
Context
An IPv6 PIM-SM network uses the SSM model to provide specified multicast services for user hosts. User hosts in a multicast group can receive multicast data sent from the specified multicast source to this group.
Enabling IPv6 PIM-SM
Context
IPv6 PIM-DM and IPv6 PIM-SM cannot be enabled simultaneously on the device.
It is recommended that you enable IPv6 PIM-SM on all interfaces in a PIM-SM domain, so that the interfaces can establish neighbor relationships with all connected PIM devices.
If IPv6 PIM-SM and MLD need to be enabled on the same interface, enable IPv6 PIM-SM, and then enable MLD.
(Optional) Configuring an SSM Group Policy
Context
- Limiting the SSM group address range to ensure security of multicast networks
- Expanding the SSM group address range if the addresses in the default range are insufficient
Verifying the Configuration of IPv6 PIM-SM in the SSM Model
Prerequisites
After configuration of IPv6 PIM-SM in SSM model is complete, you can check the IPv6 PIM interface, IPv6 PIM neighbor, and IPv6 PIM routing table.
Procedure
- Run the display pim ipv6 interface [ interface-type interface-number | up | down ] [ verbose ] command to check IPv6 PIM information on an interface.
- Run the display pim ipv6 neighbor [ ipv6-link-local-address | interface interface-type interface-number | verbose ] * command to check information about IPv6 PIM neighbors.
- Run the following commands to check the IPv6 PIM routing table.
- display pim ipv6 routing-table [ ipv6-source-address [ mask mask-length ] | ipv6-group-address [ mask mask-length ] | flags flag-value | fsm | incoming-interface { interface-type interface-number | register } | mode { dm | sm | ssm } | outgoing-interface { exclude | include | match } { interface-type interface-number | none | register } ] * [ outgoing-interface-number [ number ] ]
display pim ipv6 routing-table brief [ ipv6-source-address [ mask mask-length ] | ipv6-group-address [ mask mask-length ] | incoming-interface { interface-type interface-number | register } ] *