12.1 组播路由与转发
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1.R1配置OSPF
[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[R1-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255
[R1-ospf-1-area-0.0.0.0]network 13.1.1.0 0.255.255.255
[R1-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
2.R2配置OSPF
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[R2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255
[R2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.255.255.255
[R2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
3.R3配置OSPF
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]ar
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 13.1.1.0 0.255.255.255
[R3-ospf-1-area-0.0.0.0]network 23.1.1.0 0.255.255.255
4.R1配置PIM-DM
[R1]multicast routing-enable
//使能IP组播路由
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]pim dm
//接口使能PIM-DM
[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]pim dm
[R1]interface GigabitEthernet 0/0/2
[R1-GigabitEthernet0/0/2]pim dm
5.R2配置PIM-DM、IGMP
[R2]multicast routing-enable
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]pim dm
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]igmp enable
//使能igmp
[R2]interface GigabitEthernet 0/0/2
[R2-GigabitEthernet0/0/2]pim dm
6.R3配置PIM-DM
[R3]multicast routing-enable
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]pim dm
[R3]interface GigabitEthernet 0/0/2
[R3-GigabitEthernet0/0/2]pim dm
7.R2上查看到Source的RPF信息,显示Source的RPF邻居为R1
[R2]display multicast rpf-info 10.1.1.1
VPN-Instance: public net
RPF information about source: 10.1.1.1
RPF interface: GigabitEthernet0/0/0, RPF neighbor: 12.1.1.1
Referenced route/mask: 10.1.1.0/24
Referenced route type: unicast
Route selection rule: preference-preferred
Load splitting rule: disable
8.R2上配置组播静态路由,指定到Source的RPF邻居为R3
[R2]ip rpf-route-static 10.1.1.1 24 23.1.1.3
9.R2上查看到Source的RPF信息,显示Source的RPF邻居为R3
[R2]display multicast rpf-info 10.1.1.1
VPN-Instance: public net
RPF information about source: 10.1.1.1
RPF interface: GigabitEthernet0/0/2, RPF neighbor: 23.1.1.3
Referenced route/mask: 10.1.1.0/24
Referenced route type: mstatic
Route selection rule: preference-preferred
Load splitting rule: disable
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