拓扑:
1.地址10.1.x.y,如AR1的GE 0/0/0:10.1.12.1/24。
2.OSPF已配置,全网路由可达。
3.PC1加入的组:239.1.1.1。
4.配置PIM-SM+IGMP
[HDQ-AR1]multicast routing-enable
[HDQ-AR1]int g0/0/0
[HDQ-AR1-GigabitEthernet0/0/0]pim sm
[HDQ-AR1-GigabitEthernet0/0/0]quit
[HDQ-AR1]int g0/0/1
[HDQ-AR1-GigabitEthernet0/0/1]pim sm
[HDQ-AR1-GigabitEthernet0/0/1]quit
[HDQ-AR2]multicast routing-enable
[HDQ-AR2]int g0/0/0
[HDQ-AR2-GigabitEthernet0/0/0]pim sm
[HDQ-AR2-GigabitEthernet0/0/0]quit
[HDQ-AR2]int g0/0/1
[HDQ-AR2-GigabitEthernet0/0/1]pim sm
[HDQ-AR2-GigabitEthernet0/0/1]quit
[HDQ-AR2]int g0/0/2
[HDQ-AR2-GigabitEthernet0/0/2]pim sm
[HDQ-AR2-GigabitEthernet0/0/2]quit
[HDQ-AR3]multicast routing-enable
[HDQ-AR3]int g0/0/0
[HDQ-AR3-GigabitEthernet0/0/0]pim sm
[HDQ-AR3-GigabitEthernet0/0/0]quit
[HDQ-AR3]int g0/0/1
[HDQ-AR3-GigabitEthernet0/0/1]pim sm
[HDQ-AR3-GigabitEthernet0/0/1]quit
[HDQ-AR4]multicast routing-enable
[HDQ-AR4]int g0/0/0
[HDQ-AR4-GigabitEthernet0/0/0]pim sm
[HDQ-AR4-GigabitEthernet0/0/0]quit
[HDQ-AR4]int g0/0/1
[HDQ-AR4-GigabitEthernet0/0/1]pim sm
[HDQ-AR4-GigabitEthernet0/0/1]quit
[HDQ-AR4]int g0/0/2
[HDQ-AR4-GigabitEthernet0/0/2]igmp enable
[HDQ-AR4-GigabitEthernet0/0/2]quit
5.查看PIM邻居:
6.静态RP
[HDQ-AR1]pim
[HDQ-AR1-pim]static-rp 3.3.3.3
[HDQ-AR1-pim]quit
[HDQ-AR2]pim
[HDQ-AR2-pim]static-rp 3.3.3.3
[HDQ-AR2-pim]quit
[HDQ-AR3]pim
[HDQ-AR3-pim]static-rp 3.3.3.3
[HDQ-AR3-pim]quit
[HDQ-AR4]pim
[HDQ-AR4-pim]static-rp 3.3.3.3
[HDQ-AR4-pim]quit
7.查看RP信息:
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8.PC1加入组播组,在AR4的G0/0/1接口抓包:
9.R3在本地构建PIM(*,G)表项
10.组源发送组播流量,在AR2的G0/0/1接口抓包:
11.组源发送组播流量,在AR4的g0/0/0抓包
12.组源发送组播流量,在AR4的g0/0/1抓包
13.在AR4上把右边链路的带宽调小(OSPF的COST改大)
[HDQ-AR4]int g0/0/1
[HDQ-AR4-GigabitEthernet0/0/1]ospf cost 60000
[HDQ-AR4-GigabitEthernet0/0/1]quit
14.在AR4的g0/0/0抓包
15.在AR4的g0/0/1抓包
16.查看组播路由表。