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196 CHAPTER 6: MULTICAST PROTOCOL
■ Displaying and Debugging PIM-SM
At least one router in an entire PIM-SM domain should be configured with
Candidate-RPs and Candidate-BSRs.
Enabling Multicast
Refer to “Configuring Common Multicast ” on page 172.
Enabling IGMP on an Interface
Refer to “Configuring IGMP” on page 174.
Enabling PIM-SM
This configuration can be effective only after multicast is enabled.
Perform the following configuration in VLAN interface view.
Repeat this configuration to enable PIM-SM on other interfaces. Only one
multicast routing protocol can be enabled on an interface at a time.
Once enabled, PIM-DM cannot be enabled on the same interface.
Setting the PIM-SM Domain Border
After the PIM-SM domain border is configured, bootstrap messages cannot cross
the border in any direction. In this way, the PIM-SM domain can be split.
Perform the following configuration in VLAN interface view.
By default, no domain border is set. After this configuration is performed, a
bootstrap message cannot cross the border, but other PIM packets can. This
configuration can effectively divide a network into domains using different BSRs.
This command cannot create a multicast packet forwarding border but only a PIM
bootstrap message border.
Entering PIM View
Global parameters of PIM should be configured in PIM view.
Table 33 Enabling PIM-SM
Operation Command
Enable PIM-SM on an interface pim sm
Disable PIM-SM on an interface undo pim sm
Table 34 Setting the PIM-SM Domain Border
Operation Command
Set the PIM-SM domain border pim bsr-boundary
Remove the PIM-SM domain border
configured
undo pim bsr-boundary