3Com S7906E Configuration Manual page 989

# Enable multicast routing on Switch A and enable PIM-DM on each interface.
[SwitchA] multicast routing-enable
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] pim dm
[SwitchA-Vlan-interface100] quit
[SwitchA] interface vlan-interface 101
[SwitchA-Vlan-interface101] pim dm
[SwitchA-Vlan-interface101] quit
[SwitchA] interface tunnel 0
[SwitchA-Tunnel0] pim dm
[SwitchA-Tunnel0] quit
# Enable multicast routing on Switch C, enable PIM-DM on each interface, and enable IGMP on the
host-side interface VLAN-interface 200.
[SwitchC] multicast routing-enable
[SwitchC] interface vlan-interface 200
[SwitchC-Vlan-interface200] igmp enable
[SwitchC-Vlan-interface200] pim dm
[SwitchC-Vlan-interface200] quit
[SwitchC] interface vlan-interface 102
[SwitchC-Vlan-interface102] pim dm
[SwitchC-Vlan-interface102] quit
[SwitchC] interface tunnel 0
[SwitchC-Tunnel0] pim dm
[SwitchC-Tunnel0] quit
5) Configure a static multicast route
# On Switch C, configure a static multicast route and specify its RPF neighbor leading toward Source is
Tunnel 0 on Switch A.
[SwitchC] ip rpf-route-static 10.1.1.0 24 50.1.1.1
6) Verify the configuration
Source sends multicast data to the multicast group 225.1.1.1 and Receiver can receive the multicast
data after joining the multicast group. You can view the PIM routing table information on routers using
the display pim routing-table command. For example:
# View the PIM routing table information on Switch C.
[SwitchC] display pim routing-table
VPN-Instance: public net
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.1)
Protocol: pim-dm, Flag: WC
UpTime: 00:04:25
Upstream interface: NULL
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 1
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