712 CHAPTER 49: MULTICAST ROUTING AND FORWARDING CONFIGURATION
■ Switch B and Switch C run OSPF, and have no unicast routes to Switch A.
■ Typically, Receiver can receive the multicast data from Source 1 in the OSPF
domain.
■ Perform the following configuration so that Receiver can receive multicast data
from Source 2, which is outside the OSPF domain.
Network diagram
Figure 209 Network diagram for creating an RPF route
Configuration procedure
1 Configure the interface IP addresses and unicast routing protocol for each switch
Configure the IP address and subnet mask for each interface as per Figure 209.
The detailed configuration steps are omitted here.
Enable OSPF on Switch B and Switch C. Ensure the network-layer interoperation
among Switch B and Switch C. Ensure that the switches can dynamically update
their routing information by leveraging the unicast routing protocol. The specific
configuration steps are omitted here.
2 Enable IP multicast routing, and enable PIM-DM and IGMP
# Enable IP multicast routing on Switch C, enable PIM-DM on each interface, and
enable IGMP on the host-side interface VLAN-interface 100.
<SwitchC> system-view
[SwitchC] multicast routing-enable
[SwitchC] interface vlan-interface 100
[SwitchC-Vlan-interface100] igmp enable
[SwitchC-Vlan-interface100] pim dm
[SwitchC-Vlan-interface100] quit
[SwitchC] interface vlan-interface 101
[SwitchC-Vlan-interface101] pim dm
[SwitchC-Vlan-interface101] quit
# Enable IP multicast routing on Switch A and enable PIM-DM on each interface.
<SwitchA> system-view
[SwitchA] multicast routing-enable
[SwitchC] interface vlan-interface 300
Switch A Switch B Switch C
Vlan-int102
30.1.1.2/24
Vlan-int101
20 .1 .1. 2/ 24
Vlan-int101
20.1.1.1/24
Vlan-int102
30.1.1.1/24
Source 1Source 2 Receiver
40.1.1.100/24 10.1.1.100/24
Multicast static route
Vlan-int200
40.1.1.1/24
Vlan-int100
10.1.1.1/24
OSPF domain
PIM-DM
50.1.1.100/24
Vlan-int300
50.1.1.1/24
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