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Configuring the IPv6 SSM group range
When an IPv6 PIM-SM enabled interface receives an IPv6 multicast packet, it checks whether the
IPv6 multicast group address of the packet is in the IPv6 SSM group range. If the IPv6 multicast
group address is in this range, the IPv6 PIM mode for this packet is IPv6 PIM-SSM. If the IPv6
multicast group address is not in this range, the IPv6 PIM mode is IPv6 PIM-SM.
Configuration restrictions and guidelines
When you configure the IPv6 SSM group range, follow these restrictions and guidelines:
Configure the same IPv6 SSM group range on all routers in the entire IPv6 PIM-SM domain.
Otherwise, IPv6 multicast information 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.
Configuration procedure
To configure an IPv6 SSM group range:
1. Enter system view.
system-view
N/A
2. Enter IPv6 PIM view.
ipv6 pim
N/A
3.
group range.
ssm-policy
ipv6-acl-number
The default range is FF3x::/32,
where x can be any valid scope.
Configuring common IPv6 PIM features
Configuration task list
(Optional.) Configuring an IPv6 multicast source policy
(Optional.) Configuring an IPv6 PIM hello policy
(Optional.) Configuring IPv6 PIM hello message options
(Optional.) Configuring common IPv6 PIM timers
(Optional.) Setting the maximum size of each join or prune message
(Optional.) Enabling BFD for IPv6 PIM
(Optional.) Enabling IPv6 PIM passive mode
(Optional.) Enabling IPv6 PIM NSR
(Optional.) Enabling SNMP notifications for IPv6 PIM
(Optional.) Enabling NBMA mode for IPv6 ADVPN tunnel interfaces
Configuration prerequisites
Before you configure common IPv6 PIM features, complete the following tasks:
Configure an IPv6 unicast routing protocol so that all devices in the domain can interoperate at
the network layer.
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