3Com S7906E - Switch, Configuration Manual

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[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: multicast static
Route selection rule: preference-preferred
Load splitting rule: disable
[SwitchC] 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: multicast static
Route selection rule: preference-preferred
Load splitting rule: disable
As shown above, the RPF routes to Source 2 exist on Switch B and Switch C. The source is the
configured static route.
Multicast Forwarding over GRE Tunnels
Network requirements
z
Multicast routing and PIM-DM are enabled on Switch A and Switch C. Switch B does not support
multicast.
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 diagram
Figure 1-7 Network diagram for configuring multicast forwarding over a GRE tunnel
Configuration procedure
1) Configure IP addresses
Configure the IP address and mask for each interface as per Figure 1-7 . The detailed configuration
steps are omitted here.
2) Configure a GRE tunnel
# Create Tunnel 0 on Switch A and configure the IP address and mask for the interface.
<SwitchA> system-view