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As shown in the figure, the multicast server is connected to the layer 3 switch switchA through
port 1/1 which belongs to the VLAN10 of the switch. The layer 3 switch switchA is connected
with layer 2 switches through the port1/10, which configured as trunk port. On the switchB the
VLAN100 is configured set to contain port1/15, and VLAN101 to contain port1/20. PC1 and
PC2 are respectively connected to port 1/15 and1/20. The switchB is connected with the
switchA through port1/10, which configured as trunk port. VLAN 20 is a multicast VLAN. By
configuring multicast vlan, the PC1 and PC2 will receives the multicast data from the multicast
VLAN.
Following configuration is based on the IP address of the switch has been configured and all
the equipment are connected correctly.
Configuration procedure
SwitchA#config
SwitchA(config)#vlan 10
SwitchA(config-vlan10)#switchport access ethernet 1/1
SwitchA(config-vlan10)exit
SwitchA(config)#interface vlan 10
Switch(Config-if-Vlan10)#ip pim dense-mode
Switch(Config-if-Vlan10)#exit
SwitchA(config)#vlan 20
SwitchA(config-vlan20)#exit
SwitchA(config)#interface vlan 20
SwitchA(Config-if-Vlan20)#ip pim dense-mode
SwitchA(Config-if-Vlan20)#exit
SwitchA(config)#ip pim multicast
SwitchA(config)# interface ethernet1/10
SwitchA(Config-If-Ethernet1/10)switchport mode trunk
SwitchB#config
SwitchB(config)#vlan 100
SwitchB(config-vlan100)#Switchport access ethernet 1/15
SwitchB(config-vlan100)exit
SwitchB(config)#vlan 101
SwitchB(config-vlan101)#Switchport access ethernet 1/20
SwitchB(config-vlan101)exit
SwitchB(config)# interface ethernet 1/10
SwitchB(Config-If-Ethernet1/10)#switchport mode trunk
SwitchB(Config-If-Ethernet1/10)#exit
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Troubleshooting
