3Com Switch 7750 Configuration Guide Guide

452 CHAPTER 45: MSDP CONFIGURATION
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 109. 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.
<SwitchC> system-view
[SwitchC] multicast routing-enable
[SwitchC] interface vlan-interface 100
[SwitchC-Vlan-interface100] pim sm
[SwitchC-Vlan-interface100] quit
[SwitchC] interface vlan-interface 200
[SwitchC-Vlan-interface200] pim sm
[SwitchC-Vlan-interface200] quit
[SwitchC] interface vlan-interface 110
[SwitchC-Vlan-interface110] pim sm
# Configure the PIM domain boundary on Switch C, Switch D and Switch E
respectively.
Switch C is taken for example. The configuration procedures on
other
switches are similar to that on Switch C. The details are omitted here.
[SwitchC-Vlan-interface110] pim bsr-boundary
[SwitchC-Vlan-interface110] quit
3 Configure the interface Loopback0 and the location of C-BSRs and C-RPs.
# Configure the interface Loopback0 on SwitchC, Switch D, and Switch F and
configure
the locations of C-BSRs and C-RPs. Switch C is taken for example. The
configuration
procedures on Switch D and Switch F are similar to that on SwitchC
.
The details are omitted here.
[SwitchC] interface loopback 0
[SwitchC-LoopBack0] ip address 1.1.1.1 255.255.255.255
[SwitchC-LoopBack0] pim sm
[SwitchC-LoopBack0] quit
[SwitchC] pim
[SwitchC-pim] c-bsr loopback 0
[SwitchC-pim] c-rp loopback 0
[SwitchC-pim] quit
4 Configure BGP routes between ASs
# Configure EBGP on Switch C, and import OSPF routes.
[SwitchC] router id 1.1.1.1
[SwitchC] bgp 100
[SwitchC-bgp] group as200 external
[SwitchC-bgp] peer as200 as-number 200
[SwitchC-bgp] peer 192.168.1.2 group as200