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Multicast forwarding over gre tunnels, Network requirements – H3C Technologies H3C SecPath F1000-E User Manual

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# Use the display multicast rpf-info command to display information about the RPF route to Source

2 on SecPath B and SecPath C.

[SecPathB] display multicast rpf-info 50.1.1.100

[SecPathC] display multicast rpf-info 50.1.1.100

No information is displayed. This means that no RPF route to Source 2 exists on SecPath B and

SecPath C.

3.

Configure a static multicast route:
# Configure a static multicast route on SecPath B, specifying SecPath A as its RPF neighbor on the
route to Source 2.

[SecPathB] ip rpf-route-static 50.1.1.100 24 30.1.1.2

# Configure a static multicast route on SecPath C, specifying SecPath B as its RPF neighbor on the
route to Source 2.

[SecPathC] ip rpf-route-static 50.1.1.100 24 20.1.1.2

4.

Verify the configuration:
# Use the display multicast rpf-info command to display information about the RPF routes to Source
2 on SecPath B and SecPath C.

[SecPathB] display multicast rpf-info 50.1.1.100

RPF information about source 50.1.1.100:

RPF interface: GigabitEthernet0/3, RPF neighbor: 30.1.1.2

Referenced route/mask: 50.1.1.0/24

Referenced route type: multicast static

Route selection rule: preference-preferred

Load splitting rule: disable

[SecPathC] display multicast rpf-info 50.1.1.100

RPF information about source 50.1.1.100:

RPF interface: GigabitEthernet0/2, RPF neighbor: 20.1.1.2

Referenced route/mask: 50.1.1.0/24

Referenced route type: multicast static

Route selection rule: preference-preferred

Load splitting rule: disable

The output shows that the RPF routes to Source 2 exist on SecPath B and SecPath C. The source for
these RPF routes is the configured static multicast route.

Multicast forwarding over GRE tunnels

Network requirements

Multicast routing and PIM-DM are enabled on SecPath A and SecPath C. SecPath B does not support

multicast. OSPF runs on SecPath A, SecPath B, and SecPath C.
Configure a GRE tunnel so that Receiver can receive the multicast data from Source.