3Com Switch 8800 Advanced Software V5 Configuration Guide

PIM Configuration Examples 601
The information on Switch B and Switch C is similar to that on Switch A.
# View the PIM routing table information on Switch D.
<SwitchD> 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: 192.168.9.2
Protocol: pim-sm, Flag: SPT LOC
UpTime: 00:00:42
Upstream interface: Vlan-interface300
Upstream neighbor: 10.110.5.100,
RPF prime neighbor: 10.110.5.100
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface105
Protocol: pim-sm, UpTime: 00:00:42, Expires:-
# View the PIM routing table information on Switch E.
<SwitchE> display pim routing-table
Vpn-instance: public net
Total 1 (*, G) entry; 0 (S, G) entry
(*, 225.1.1.1), RP: 192.168.9.2 (local)
Protocol: pim-sm, Flag: WC
UpTime: 00:13:16
Upstream interface: Register
Upstream neighbor: 192.168.4.2,
RPF prime neighbor: 192.168.4.2
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface102
Protocol: pim-sm, UpTime: 00:13:16, Expires: 00:03:22
PIM-SSM Configuration
Example
Network requirements
■ Receivers receive VOD information through multicast. The receiver groups of
different organizations form stub networks, and one or more receiver hosts
exist in each stub network. The entire PIM domain operates in the SSM mode.
■ Host A and Host C are multicast receivers in two stub networks.
■ Switch D connects to the network that comprises the multicast source (Source)
through VLAN-interface 300.
■ Switch A connects to stub network N1 through VLAN-interface 100, and to
Switch D and Switch E through VLAN-interface 101 and VLAN-interface 102
respectively.
■ Switch B and Switch C connect to stub network N2 through their respective
VLAN-interface 200, and to Switch E through VLAN-interface 103 and
VLAN-interface 104 respectively.
■ Switch E connects to Switch A, Switch B, Switch C and Switch D.
■ The range of SSM multicast group addresses is 232.1.1.0/24.
■ IGMPv3 is required on Switch A, Switch B, Switch C, and hosts in N1 and N2.