3com S7906E Instruccion De Instalación
1-32
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For details about the ip vpn-instance and route-distinguisher commands, see MPLS L3VPN
Commands in the MPLS Volume.
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For details about the multicast routing-enable command, see Multicast Routing and Forwarding
Commands in the IP Multicast Volume.
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
or VPN instance PIM view
or VPN instance PIM view
pim [ vpn-instance
vpn-instance-name ]
vpn-instance-name ]
—
Configure the SSM group
range
range
ssm-policy acl-number
Optional
232.0.0.0/8 by default
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Make sure that the same SSM group range is configured on all routers in the entire domain.
Otherwise, multicast information cannot be delivered through the SSM model.
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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.
Configuring PIM Common Features