Specifications

Configuring IP Multicast Multilayer Switching
IP Multicast MLS Configuration Examples
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ip pim dense-mode
interface fastethernet1/0.20
encapsulation isl 20
ip address 172.20.20.1 255.255.255.0
ip pim dense-mode
Router B (MMLS-RP) Configuration
ip multicast-routing
interface fastethernet1/0.1
encapsulation isl 1
ip address 172.20.1.2 255.255.255.0
interface fastethernet2/0.10
encapsulation isl 10
ip address 172.20.10.100 255.255.255.0
ip pim dense-mode
interface fastethernet2/0.30
encapsulation isl 30
ip address 172.20.30.100 255.255.255.0
ip pim dense-mode
Switch A (MMLS-SE) Configuration
Console> (enable) set vlan 10
Vlan 10 configuration successful
Console> (enable) set vlan 20
Vlan 20 configuration successful
Console> (enable) set vlan 30
Vlan 30 configuration successful
Console> (enable) set trunk 1/1 on isl
Port(s) 1/1 trunk mode set to on.
Port(s) 1/1 trunk type set to isl.
Console> (enable) set trunk 1/2 on isl
Port(s) 1/2 trunk mode set to on.
Port(s) 1/2 trunk type set to isl.
Console> (enable) set trunk 1/3 desirable isl
Port(s) 1/3 trunk mode set to desirable.
Port(s) 1/3 trunk type set to isl.
Console> (enable) set trunk 1/4 desirable isl
Port(s) 1/4 trunk mode set to desirable.
Port(s) 1/4 trunk type set to isl.
Console> (enable) set igmp enable
IGMP feature for IP multicast enabled
Console> (enable) set mls multicast enable
Multilayer Switching for Multicast is enabled for this device.
Console> (enable) set mls multicast include 172.20.10.1
Multilayer switching for multicast is enabled for router 172.20.10.1.
Console> (enable) set mls multicast include 172.20.10.100
Multilayer switching for multicast is enabled for router 172.20.10.100.
Console> (enable)
Switch B Configuration
The following example shows how to configure Switch B assuming VLAN Trunking Protocol (VTP) is
used for VLAN management:
Console> (enable) set igmp enable
IGMP feature for IP multicast enabled
Console> (enable)
Switch C Configuration
The following example shows how to configure Switch C assuming VTP is used for VLAN management:
Console> (enable) set igmp enable