1.基本概念
SSM(特定源组播),接收者加入组播时,即可指定接收者或者决绝来自特定组播源的组播流量。SSM中关键组件是SSM是IGMPv3,232.0.0.0/8专用于SSM。
1)R1配置
[R1]multicast routing-enable
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ip address 172.16.1.254 24
[R1-GigabitEthernet0/0/0]pim sm
[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]ip address 192.168.12.1 24
[R1-GigabitEthernet0/0/1]pim sm
[R1]ospf 1
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255
2)R2配置
[R2]multicast routing-enable
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 192.168.23.2 24
[R2-GigabitEthernet0/0/0]pim sm
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]ip address 192.168.12.2 24
[R2-GigabitEthernet0/0/1]pim sm
[R2]interface GigabitEthernet 0/0/2
[R2-GigabitEthernet0/0/2]ip address 192.168.24.2 24
[R2-GigabitEthernet0/0/2]pim sm
[R2]ospf 1
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255
[R2-ospf-1-area-0.0.0.0]network 192.168.23.0 0.0.0.255
[R2-ospf-1-area-0.0.0.0]network 192.168.24.0 0.0.0.255
3)R3配置
[R3]multicast routing-enable
[R3]interface GigabitEthernet 0/0/0
[R3-GigabitEthernet0/0/0]ip address 192.168.23.3 24
[R3-GigabitEthernet0/0/0]pim sm
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]ip address 192.168.34.3 24
[R3-GigabitEthernet0/0/1]pim sm
[R3]ospf 1
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 192.168.23.0 0.0.0.255
[R3-ospf-1-area-0.0.0.0]network 192.168.34.0 0.0.0.255
4)R3配置
[R4]multicast routing-enable
[R4]interface GigabitEthernet 0/0/1
[R4-GigabitEthernet0/0/1]ip address 192.168.34.4 24
[R4-GigabitEthernet0/0/1]pim sm
[R4]interface GigabitEthernet 0/0/2
[R4-GigabitEthernet0/0/2]ip address 192.168.24.4 24
[R4-GigabitEthernet0/0/2]pim sm
[R4]interface g0/0/0
[R4-GigabitEthernet0/0/0]ip address 192.168.4.254 24
[R4-GigabitEthernet0/0/0]pim sm
[R4-GigabitEthernet0/0/0]igmp enable
[R4-GigabitEthernet0/0/0]igmp version 3
[R4]ospf 1
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 192.168.24.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]network 192.168.34.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255
<R4>display igmp group verbose
Interface group report information of VPN-Instance: public net
Limited entry of this VPN-Instance: -
GigabitEthernet0/0/0(192.168.4.254):
Total entry on this interface: 1
Limited entry on this interface: -
Total 1 IGMP Group reported
Group: 224.1.1.1
Uptime: 00:08:28
Expires: off
Last reporter: 192.168.4.1
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
Group mode: include
Version1-host-present-timer-expiry: off
Version2-host-present-timer-expiry: off
Source list:
Source: 172.16.1.1
Uptime: 00:08:28
Expires: 00:01:24
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
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