6-18Configuring Multicast VLANNetwork requirementsAs shown in Figure 6-4, Workstation is a multicast source. Switch A forwards multicast data from themulticast source. A Layer 2 switch, Switch B forwards the multicast data to the end users Host A andHost B.Table 6-2 describes the network devices involved in this example and the configurations you shouldmake on them.Table 6-2 Network devices and their configurationsDevice Devicedescription Networking descriptionSwitch A Layer 3 switchThe interface IP address of VLAN 20 is 168.10.1.1. GigabitEthernet1/0/1 is connected to the workstation and belongs to VLAN 20.The interface IP address of VLAN 10 is 168.10.2.1. GigabitEthernet1/0/10 belongs to VLAN 10. GigabitEthernet 1/0/10 is connected toSwitch B.Switch B Layer 2 switchz VLAN 2 contains GigabitEthernet 1/0/1 and VLAN 3 containsGigabitEthernet 1/0/2.z The default VLANs of GigabitEthernet 1/0/1 and GigabitEthernet1/0/2 are VLAN 2 and VLAN 3 respectively.z VLAN 10 contains GigabitEthernet 1/0/10, GigabitEthernet 1/0/1,and GigabitEthernet 1/0/2. GigabitEthernet 1/0/10 is connected toSwitch A.z VLAN 10 is a multicast VLAN.z GigabitEthernet 1/0/1 sends untagged packets for VLAN 2 andVLAN 10.z GigabitEthernet 1/0/2 sends untagged packets for VLAN 3 andVLAN 10.Host A User 1 Host A is connected to GigabitEthernet 1/0/1 on Switch B.Host B User 2 Host B is connected to GigabitEthernet 1/0/2 on Switch B.In this configuration example, you need to configure the ports that connect Switch A and Switch B toeach other as hybrid ports. The following text describes the configuration details. You can also configurethese ports as trunk ports. The configuration procedure is omitted here. For details, see ConfiguringMulticast VLAN.Configure a multicast VLAN, so that users in VLAN 2 and VLAN 3 can receive multicast streamsthrough the multicast VLAN.
