3Com Switch 8800 Advanced Software V5 Configuration Guide

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598 CHAPTER 42: PIM CONFIGURATION

Configuration procedure

Only the commands related to the PIM-SM configuration are listed below

1 Configure the interface IP addresses and unicast routing protocol for each

switch

Configure the OSPF protocol for interoperation among the switches in the PIM-SM

domain. Ensure the network-layer interoperation among Switch A, Switch B,

Switch C, Switch D and Switch E in the PIM-DM domain and enable dynamic

update of routing information among the switches through a unicast routing

protocol. Detailed configuration steps are omitted here.

Configure the IP address and subnet mask for each interface as per Figure 184.

Detailed configuration steps are omitted here.

2 Enable IP multicast routing, and enable PIM-SM on each interface

# Enable IP multicast routing on Switch A, enable PIM-SM on each interface, and

enable IGMPv3 on Vlan-interface 100, which connects Switch A to the stub

network.

<SwitchA> system-view

[SwitchA] multicast routing-enable

[SwitchA] interface vlan-interface 100

[SwitchA-Vlan-interface100] igmp enable

[SwitchA-Vlan-interface100] igmp version 3

[SwitchA-Vlan-interface100] pim sm

[SwitchA-Vlan-interface100] quit

[SwitchA] interface vlan-interface 101

[SwitchA-Vlan-interface101] pim sm

[SwitchA-Vlan-interface101] quit

[SwitchA] interface vlan-interface 102

[SwitchA-Vlan-interface102] pim sm

[SwitchA-Vlan-interface102] quit

The configuration on Switch B and Switch C is similar to that on Switch A. The

configuration on Switch D and Switch E is also similar to that on Switch A except

that it is not necessary to enable IGMP on the corresponding interfaces on these

two switches.

3 Configure a C-BSR and a C-RP

# Configure the service scope of RP advertisements and the positions of the C-BSR

and C-RP on Switch E.

Switch A Vlanint100 10.110.1.1/24 Switch D Vlanint300 10.110.5.1/24

Vlanint101 192.168.1.1/24 Vlanint101 192.168.1.2/24

Vlanint102 192.168.9.1/24 Vlanint105 192.168.4.2/24

Switch B Vlanint200 10.110.2.1/24 Switch E Vlanint104 192.168.3.2/24

Vlanint103 192.168.2.1/24 Vlanint103 192.168.2.2/24

Switch C Vlanint200 10.110.2.2/24 Vlanint102 192.168.9.2/24

Vlanint104 192.168.3.1/24 Vlanint105 192.168.4.1/24