3Com S7902E, Configuration Manual

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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, you are recommended to enable PIM-SM on non-border interfaces
of the routers.
Enabling PIM-SM globally in the public instance
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
Enabling PIM-SM in a VPN instance
Follow these steps to enable PIM-SM in a VPN instance:
To do... Use the command... Description
Enter system view system-view —
Create a VPN instance and
enter VPN instance view ip vpn-instance
vpn-instance-name
—
Configure a route-distinguisher
(RD) for the VPN instance
route-distinguisher
route-distinguisher
Required
No RD is configured by default.
Enable IP multicast routing multicast routing-enable
Required
Disabled by default
Enter interface view
interface interface-type
interface-number
—
Enable PIM-SM pim sm
Required
Disabled by default
All the interfaces in the same VPN instance on the same device must work in the same PIM mode.