3Com Switch 8800 Advanced Software V5 Configuration Guide

MSDP Configuration Examples 629
# Enable IP multicast routing on Switch C, and enable PIM-SM on each interface.
<SwitchC> system-view
[SwitchC] multicast routing-enable
[SwitchC] interface vlan-interface 103
[SwitchC-Vlan-interface103] pim sm
[SwitchC-Vlan-interface103] quit
[SwitchC] interface vlan-interface 100
[SwitchC-Vlan-interface100] pim sm
[SwitchC-Vlan-interface100] quit
[SwitchC] interface Vlan-interface 101
[SwitchC-Vlan-interface101] pim sm
[SwitchC-Vlan-interface101] quit
The configuration on Switch A, Switch B, Switch D, Switch E, Switch F and Switch
G is similar to the configuration on Switch C.
3 Configure the position of interface Loopback 1, Loopback 10, C-BSR, and C-RP.
# Configure different Loopback 1 addresses and identical Loopback 10 address on
Switch C and Switch F, configure C-BSR on each Loopback 1 and configure C-RP
on each Loopback 10.
[SwitchC] interface loopback 1
[SwitchC-LoopBack1] ip address 3.3.3.3 255.255.255.255
[SwitchC-LoopBack1] pim sm
[SwitchC-LoopBack1] quit
[SwitchC] interface loopback 10
[SwitchC-LoopBack10] ip address 10.1.1.1 255.255.255.255
[SwitchC-LoopBack10] pim sm
[SwitchC-LoopBack10] quit
[SwitchC] pim
[SwitchC-pim] c-bsr loopback 1
[SwitchC-pim] c-rp loopback 10
[SwitchC-pim] quit
The configuration on Switch F is similar to the configuration on Switch C.
To view the PIM routing information on the switches, use the display pim
routing-table command. When the multicast source (Source 1, with the address
of 10.110.5.100/24) in the PIM-SM domain sends multicast data to the multicast
group G (225.1.1.1/24), the receivers attached to Switch F can receive the
multicast data. By comparing the PIM routing information displayed on Switch C
with that displayed on Switch F, you can see that Switch C acts now as the RP.
# View the PIM routing information on Switch C.
[SwitchC] display pim routing-table
Vpn-instance: public net
Total 0 (*, G) entry; 1 (S, G) entry
(10.110.5.100, 225.1.1.1),
RP: 10.1.1.1 (local)
Protocol: pim-sm, Flag: SPT LOC ACT
UpTime: 00:10:20
Upstream interface: Vlan-interface100
Upstream neighbor: 10.110.2.2