3com S7906E Installation Instruction

1-41 

Configure the IP address and subnet mask for each interface as per 

. Detailed configuration 

steps are omitted here. 

Configure the OSPF protocol for interoperation among the switches in the PIM-DM domain. Ensure the 

network-layer interoperation in the PIM-DM domain and enable dynamic update of routing information 

among the switches through a unicast routing protocol. Detailed configuration steps are omitted here. 

2)  Enable IP multicast routing, and enable PIM-DM and IGMP 

# Enable IP multicast routing on Switch A, enable PIM-DM on each interface, and enable IGMP on 

VLAN-interface 100, which connects Switch A to the stub network.  

<SwitchA> system-view 

[SwitchA] multicast routing-enable 

[SwitchA] interface vlan-interface 100 

[SwitchA-Vlan-interface100] igmp enable 

[SwitchA-Vlan-interface100] pim dm 

[SwitchA-Vlan-interface100] quit 

[SwitchA] interface vlan-interface 103 

[SwitchA-Vlan-interface103] pim dm 

[SwitchA-Vlan-interface103] quit 

The configuration on Switch B and Switch C is similar to that on Switch A. 

# Enable IP multicast routing on Switch D, and enable PIM-DM on each interface. 

<SwitchD> system-view 

[SwitchD] multicast routing-enable 

[SwitchD] interface vlan-interface 300 

[SwitchD-Vlan-interface300] pim dm 

[SwitchD-Vlan-interface300] quit 

[SwitchD] interface vlan-interface 103 

[SwitchD-Vlan-interface103] pim dm 

[SwitchD-Vlan-interface103] quit 

[SwitchD] interface vlan-interface 101 

[SwitchD-Vlan-interface101] pim dm 

[SwitchD-Vlan-interface101] quit 

[SwitchD] interface vlan-interface 102 

[SwitchD-Vlan-interface102] pim dm 

[SwitchD-Vlan-interface102] quit 

3)  Verify the configuration 

Use the display pim interface command to view the PIM configuration and running status on each 

interface. For example:  

# View the PIM configuration information on Switch D. 

[SwitchD] display pim interface 

 Interface           NbrCnt HelloInt   DR-Pri     DR-Address 

 Vlan300             0      30         1          10.110.5.1     (local) 

 Vlan103             1      30         1          192.168.1.2    (local) 

 Vlan101             1      30         1          192.168.2.2    (local) 

 Vlan102             1      30         1          192.168.3.2    (local) 

Carry out the display pim neighbor command to view the PIM neighboring relationships among the 

switches. For example: