2-18
Host port(s):Ethernet1/0/3 Ethernet1/0/4
As shown above, the multicast group 224.1.1.1 is established on Switch A, with the dynamic router port
Ethernet1/0/1 and dynamic member ports Ethernet1/0/3 and Ethernet1/0/4. This means that Host A and
Host B have joined the multicast group 224.1.1.1.
Configuring Multicast VLAN
Network requirements
As shown in Figure 2-4, Workstation is a multicast source. Switch A forwards multicast data from the
multicast source. A Layer 2 switch, Switch B forwards the multicast data to the end users Host A and
Host B.
Table 2-21 describes the network devices involved in this example and the configurations you should
make on them.
Table 2-21 Network devices and their configurations
Device Device description Networking description
Switch A Layer 3 switch
The interface IP address of VLAN 20 is 168.10.1.1. Ethernet
1/0/1 is connected to the workstation and belongs to VLAN
20.
The interface IP address of VLAN 10 is 168.10.2.1. Ethernet
1/0/10 belongs to VLAN 10. Ethernet 1/0/10 is connected to
Switch B.
Switch B Layer 2 switch
VLAN 2 contains Ethernet 1/0/1 and VLAN 3 contains
Ethernet 1/0/2. The two ports are connected to Host A and
Host B, respectively.
VLAN 10 includes Ethernet 1/0/10, Ethernet1/0/1, and
Ethernet 1/0/2. Ethernet 1/0/10 is connected to Switch A.
VLAN 10 is a multicast VLAN.
Host A User 1 Host A is connected to Ethernet 1/0/1 on Switch B.
Host B User 2 Host B is connected to Ethernet 1/0/2 on Switch B.
In this configuration example, you need to configure the ports that connect Switch A and Switch B to
each other as hybrid ports. The following text describes the configuration details. You can also configure
these ports as trunk ports. The configuration procedure is omitted here. For details, see
Configuring
Multicast VLAN
.
Configure a multicast VLAN, so that users in VLAN 2 and VLAN 3 can receive multicast streams
through the multicast VLAN.
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