1-18[SwitchB] display multicast rpf-info 50.1.1.100RPF information about source 50.1.1.100:RPF interface: Vlan-interface102, RPF neighbor: 30.1.1.2Referenced route/mask: 50.1.1.0/24Referenced route type: multicast staticRoute selection rule: preference-preferredLoad splitting rule: disable[SwitchC] display multicast rpf-info 50.1.1.100RPF information about source 50.1.1.100:RPF interface: Vlan-interface101, RPF neighbor: 20.1.1.2Referenced route/mask: 50.1.1.0/24Referenced route type: multicast staticRoute selection rule: preference-preferredLoad splitting rule: disableAs shown above, the RPF routes to Source 2 exist on Switch B and Switch C. The source is theconfigured static route.Multicast Forwarding over GRE TunnelsNetwork requirementsz Multicast routing and PIM-DM are enabled on Switch A and Switch C. Switch B does not supportmulticast.z OSPF is running on Switch A, Switch B, and Switch C.z Perform the following configurations so that Receiver can receive the multicast data from Source.Network diagramFigure 1-7 Network diagram for configuring multicast forwarding over a GRE tunnelConfiguration procedure1) Configure IP addressesConfigure the IP address and mask for each interface as per Figure 1-7. The detailed configurationsteps are omitted here.2) Configure a GRE tunnel# Create Tunnel 0 on Switch A and configure the IP address and mask for the interface. system-view
