3Com 7757 Configuration Manual page 495

Network diagram
Figure 124 Network diagram for MSDP configuration
AS 100
Receiver
Switch B
Source 1
Vlan -int200
Switch C
Loop 0
PIM-SM 1
MSDP peers
Device Interface
Switch C Vlan-int100
Vlan-int200
Vlan-int101
Loop0
Switch F Vlan-int400
Vlan-int102
Loop0
Configuration procedure
1 Configure interface IP addresses and unicast routing protocol on the switches.
In each PIM-SM domain, configure the interface IP addresses on the switches and
interconnect the switches through OSPF. Make sure that Switch A, Switch B and
Switch C in the PIM-SM 1 domain are interoperable on the network layer, Switch
D and Switch E in the PIM-SM 2 domain are interoperable on the network layer,
and Switch F and Switch G in the PIM-SM 3 domain are interoperable on the
network layer. On the other hand, switches in each PIM-SM domain can update
routes dynamically by using unicast routing protocols. Configure the IP address
and mask of each interface according to Figure 124. The details are omitted here.
2 Enable multicast and enable PIM-SM on each interface.
# Enable multicast on SwitchC and enable PIM-SM on all interfaces. Switch C is
taken for example. The configuration procedures on other switches are similar to
that on Switch C. The details are omitted here.
AS 200
Switch F
Switch A
Vlan -int101
Vlan -int101
Switch D
IP address Device
10.110.1.1/8 Switch D
10.110.2.1/8
192.168.1.1/24
1.1.1.1/32
10.110.3.1/8
192.168.3.2/24
3.3.3.3/32
MSDP Configuration Example
Receiver
Loop 0
Switch G
Vlan -int400
Vlan -int102
PIM-SM 3
Receiver
Vlan -int102
Vlan -int300
Source 2
Switch E
Loop 0
PIM-SM 2
Interface IP address
Vlan-int300 10.110.4.1/8
Vlan-int102 192.168.3.1/24
Vlan-int101 192.168.1.2/24
Loop0 2.2.2.2/32
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