R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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Before configuring PIM-SSM, prepare the following data:
• The SSM group range
Enabling PIM-SM
The SSM model is implemented based on some subsets of PIM-SM. Therefore, a router is PIM-SSM
capable after you enable PIM-SM on it.
When deploying a PIM-SM domain, enable PIM-SM on non-border interfaces of the routers.
Follow these steps to enable PIM-SM globally in the public instance:
To do... Use the command... Remarks
Enter system view system-view —
Enable IP multicast routing multicast routing-enable
Required
Disable by default
Enter interface view
interface interface-type
interface-number
—
Enable PIM-SM pim sm
Required
Disabled by default
Configuring the SSM group range
As for whether the information from a multicast source is delivered to the receivers based on the PIM-SSM
model or the PIM-SM model, this depends on whether the group address in the (S, G) channel subscribed
by the receivers falls in the SSM group range. All PIM-SM-enabled interfaces assume that multicast
groups within this address range are using the PIM-SSM model.
Perform the following configuration on all routers in the PIM-SM domain.
Follow these steps to configure an SSM multicast group range:
To do... Use the command... Remarks
Enter system view system-view —
Enter public instance PIM view pim —
Configure the SSM group range ssm-policy acl-number
Optional
232.0.0.0/8 by default
CAUTION:
• Make sure that the same SSM
g
roup ran
g
e is confi
g
ured on all routers in the entire domain. Otherwise,
multicast information cannot be delivered through the SSM model.
• When a member of a multicast group in the SSM group range sends an IGMPv1 or IGMPv2 report
message, the device does not trigger a (*, G) join.