3Com Switch 4800G 24-Port Configuration Manual page 662

662 C 47: PIM C
HAPTER ONFIGURATION
PIM-SM Configuration
Example
Downstream interface(s) information:
Total number of downstreams: 3
1: Vlan-interface103
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
2: Vlan-interface101
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
3: Vlan-interface102
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
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 sparse mode
(not divided into different BSR admin-scope regions).
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, and its
■
VLAN-interface 102 interface acts a C-BSR and a C-RP, with the range of
multicast groups served by the C-RP being 225.1.1.0/24.
IGMPv2 is to run between Switch A and N1, and between Switch B/Switch C
■
and N2.