3Com S7902E, Configuration Manual

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1-27
Configuring the IPv6 SSM Group Range
As for 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, this depends on whether the group address in the (S,
G) channel subscribed by the receivers falls in 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.
Perform the following configuration on all routers in the IPv6 PIM-SM domain.
Follow these steps to configure the IPv6 SSM group range:
To do... Use the command... Remarks
Enter system view system-view —
Enter IPv6 PIM view pim ipv6 —
Configure the IPv6 SSM group
range
ssm-policy acl6-number
Optional
FF3x::/32 by default, here “x”
refers to any legal group scope.
z
Make sure that 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.
z
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.
Configuring IPv6 PIM Common Features