157
•
VOD streams are sent to receiver hosts in multicast. The entire PIM-SM domain is divided into
admin-scoped zone 1, admin-scoped zone 2, and the global-scoped zone. Switch B, Switch C,
and Switch D are ZBRs of the three zones, respectively.
•
Source 1 and Source 2 send different multicast data to the multicast group 239.1.1.1. Host A
receives the multicast data only from Source 1, and Host B receives the multicast data only
from Source 2. Source 3 sends multicast data to multicast group 224.1.1.1. Host C is a
multicast receiver for the multicast group 224.1.1.1.
•
VLAN-interface 101 of Switch B acts as a C-BSR and a C-RP for admin-scoped zone 1, and
VLAN-interface 105 of Switch D acts as a C-BSR and a C-RP for admin-scoped zone 2. Both of
the two interfaces are designated to multicast group range 239.0.0.0/8. VLAN-interface 109 of
Switch F acts as a C-BSR and a C-RP for the global-scoped zone, and is designated to all the
multicast groups that are not in the range 239.0.0.0/8.
•
IGMPv2 runs between Switch A, Switch E, Switch I, and the receivers that directly connect to
them, respectively.
Figure 57 Network diagram
Table 11 Interface and IP address assignment
Device
Interface
IP address
Device
Interface
IP address
Switch A
Vlan-int100
192.168.1.1/24
Switch D
Vlan-int105
10.110.5.2/24
Switch A
Vlan-int101
10.110.1.1/24
Switch D
Vlan-int108
10.110.7.1/24
Switch B
Vlan-int200
192.168.2.1/24
Switch D
Vlan-int107
10.110.8.1/24
Switch B
Vlan-int101
10.110.1.2/24
Switch E
Vlan-int400
192.168.4.1/24
Switch B
Vlan-int103
10.110.2.1/24
Switch E
Vlan-int104
10.110.4.2/24
Switch B
Vlan-int102
10.110.3.1/24
Switch E
Vlan-int108
10.110.7.2/24
Switch C
Vlan-int300
192.168.3.1/24
Switch F
Vlan-int109
10.110.9.1/24
Switch A
Switch B
ZBR
Switch C
ZBR
Switch D
ZBR
Switch E
Switch H
Switch I
Switch F
Switch G
Source 3
Source 1
Source 2
Receiver
Host A
Vlan-int105
Vlan
-int
10
4
Vlan
-int
10
3
Vlan
-int
300
Vlan-int106
Vlan-int105
Vlan-int108
Vlan-int107
Vlan-int107
Vlan-int109
Vlan-int109
Vlan-int500
Vlan
-int
10
4
Vlan-int108
Vlan-int400
Vlan-int110
Vlan-int110
Vlan-int106
Vlan
-int
600
Vlan-int100
Vlan-int200
Vlan
-int
10
3
Vlan-int102
Vlan-int102
Vlan-int101
Vlan-int101
Admin-scope 2
PIM-SM
Global-scope
Admin-scope 1
Receiver
Host B
Receiver
Host C