Example: Configuring non-scoped PIM-SM

As shown in Figure 56:

• OSPF runs on the network.

• VOD streams are sent to receiver hosts in multicast. The receivers of different subnets form stub networks, and a minimum of one receiver host exist on each stub network.

• The entire PIM-SM domain contains only one BSR.

• Host A and Host C are multicast receivers on two stub networks N1 and N2.

• Specify VLAN-interface 102 on Switch E as a C-BSR and a C-RP. The C-RP is designated to multicast group range 225.1.1.0/24. Specify VLAN-interface 101 of Switch D as the static RP on all the switches to back up the dynamic RP.

• IGMPv2 runs between Switch A and N1, and between Switch B, Switch C, and N2.

1. Assign an IP address and subnet mask to each interface, as shown in Figure 56. (Details not shown.)

2. Configure OSPF on all switches in the PIM-SM domain. (Details not shown.)

3. Enable IP multicast routing, and enable IGMP and PIM-SM:

   # On Switch A, enable IP multicast routing.

   <SwitchA> system-view
   [SwitchA] multicast routing
   [SwitchA-mrib] quit
   

   # Enable IGMP on VLAN-interface 100 (the interface that connects to the stub network).

   [SwitchA] interface vlan-interface 100
   [SwitchA-Vlan-interface100] igmp enable
   [SwitchA-Vlan-interface100] quit
   

   # Enable PIM-SM on the other interfaces.

   [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
   

   # Enable IP multicast routing, IGMP, and PIM-SM on Switch B and Switch C in the same way Switch A is configured. (Details not shown.)

   # Enable IP multicast routing and PIM-SM on Switch D and Switch E in the same way Switch A is configured. (Details not shown.)

4. Configure C-BSRs, C-RPs, and the static RP:

   # On Switch E, configure the service scope of RP advertisements.

   <SwitchE> system-view
   [SwitchE] acl basic 2005
   [SwitchE-acl-ipv4-basic-2005] rule permit source 225.1.1.0 0.0.0.255
   [SwitchE-acl-ipv4-basic-2005] quit
   

   # Configure VLAN-interface 102 as a C-BSR and a C-RP.

   [SwitchE] pim
   [SwitchE-pim] c-bsr 192.168.9.2
   [SwitchE-pim] c-rp 192.168.9.2 group-policy 2005
   

   # Configure VLAN-interface 101 of Switch D as the static RP.

   [SwitchE-pim] static-rp 192.168.1.2
   [SwitchE-pim] quit
   

   # On Switch A, configure VLAN-interface 101 of Switch D as the static RP.

   [SwitchA] pim
   [SwitchA-pim] static-rp 192.168.1.2
   [SwitchA-pim] quit
   

   # Configure the static RP on Switch B, Switch C, and Switch D in the same way Switch A is configured. (Details not shown.)

# Display PIM information on Switch A.

[SwitchA] display pim interface
 Interface           NbrCnt HelloInt   DR-Pri     DR-Address
 Vlan101             1      30         1          192.168.1.2
 Vlan102             1      30         1          192.168.9.2

# Display BSR information on Switch A.

[SwitchA] display pim bsr-info
 Scope: non-scoped
     State: Accept Preferred
     Bootstrap timer: 00:01:44
     Elected BSR address: 192.168.9.2
       Priority: 64
       Hash mask length: 30
       Uptime: 00:11:18

# Display BSR information on Switch E.

[SwitchE] display pim bsr-info
 Scope: non-scoped
     State: Elected
     Bootstrap timer: 00:01:44
     Elected BSR address: 192.168.9.2
       Priority: 64
       Hash mask length: 30
       Uptime: 00:11:18
     Candidate BSR address: 192.168.9.2
       Priority: 64
       Hash mask length: 30

# Display RP information on Switch A.

[SwitchA] display pim rp-info
 BSR RP information:
   Scope: non-scoped
     Group/MaskLen: 225.1.1.0/24
       RP address               Priority  HoldTime  Uptime    Expires
       192.168.9.2              192       180       00:51:45  00:02:22

Static RP information:
       RP address               ACL   Mode    Preferred
       192.168.1.2              ----  pim-sm  No