68
[SwitchA-Vlan-interface102] pim dm
[SwitchA-Vlan-interface102] quit
[SwitchA] interface vlan-interface 103
[SwitchA-Vlan-interface103] pim dm
[SwitchA-Vlan-interface103] quit
# Enable IP multicast routing and PIM-DM on Switch C in the same way. (Details not shown.)
# Use the display multicast rpf-info command to display the RPF route to Source on Switch B.
[SwitchB] display multicast rpf-info 50.1.1.100
RPF information about source 50.1.1.100:
RPF interface: Vlan-interface102, RPF neighbor: 30.1.1.2
Referenced route/mask: 50.1.1.0/24
Referenced route type: igp
Route selection rule: preference-preferred
Load splitting rule: disable
The output shows that the current RPF route on Switch B is contributed by a unicast routing protocol
and the RPF neighbor is Switch A.
4. Configure a static multicast route on Switch B, specifying Switch C as its RPF neighbor on the route
to Source.
[SwitchB] ip rpf-route-static 50.1.1.100 24 20.1.1.2
Verifying the configuration
# Display information about the RPF route to Source on Switch B.
[SwitchB] display multicast rpf-info 50.1.1.100
RPF information about source 50.1.1.100:
RPF interface: Vlan-interface101, RPF neighbor: 20.1.1.2
Referenced route/mask: 50.1.1.0/24
Referenced route type: static multicast
Route selection rule: preference-preferred
Load splitting rule: disable
The output shows that the RPF route on Switch B has changed. It is now the configured static multicast
route, and the RPF neighbor is now Switch C.
Creating an RPF route
Network requirements
PIM-DM runs in the network and all switches in the network support IP multicast. Switch B and Switch C
run OSPF, and have no unicast routes to Switch A. Typically, Receiver can receive the multicast data from
Source 1 in the OSPF domain.
Perform the following configuration so that Receiver can receive multicast data from Source 2, which is
outside the OSPF domain.
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