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IPv6 PIM-SSM configuration task list
Task Remarks
Enabling IPv6 PIM-SM Required
Configuring the IPv6 SSM group range Optional
Configuring IPv6 PIM common features Optional
Configuration prerequisites
Before you configure IPv6 PIM-SSM, complete the following tasks:
• Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the
domain are interoperable at the network layer.
• Determine the IPv6 SSM group range.
Enabling IPv6 PIM-SM
When you enable IPv6 PIM-SM, follow these guidelines:
• The SSM model is implemented based on some subsets of IPv6 PIM-SM. Therefore, you must enable
IPv6 PIM-SM before configuring IPv6 PIM-SSM.
• When you deploy an IPv6 PIM-SSM domain, enable IPv6 PIM-SM on all non-border interfaces of
routers.
• All the interfaces of the same device must operate in the same IPv6 PIM mode.
To enable IPv6 PIM-SSM:
Ste
Command Remarks
1. Enter system view.
system-view N/A
2. Enable IPv6 multicast routing.
multicast ipv6 routing-enable Disabled by default
3. Enter interface view.
interface interface-type
interface-number
N/A
4. Enable IPv6 PIM-SM.
pim ipv6 sm Disabled by default
Configuring the IPv6 SSM group range
Whether the information from an IPv6 multicast source is delivered to the receivers based on the IPv6
PIM-SSM model or the IPv6 PIM-SM model depends on whether the group address in the (S, G) channel
subscribed by the receivers falls into the IPv6 SSM group range. All IPv6 PIM-SM-enabled interfaces
assume that IPv6 multicast groups within this address range are using the IPv6 SSM model.
Configuration guidelines
• Make sure the same IPv6 SSM group range is configured on all routers in the entire domain.
Otherwise, IPv6 multicast data cannot be delivered through the IPv6 SSM model.
• When a member of an IPv6 multicast group in the IPv6 SSM group range sends an MLDv1 report
message, the device does not trigger a (*, G) join.
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