2-15Table 2-19 Configure multicast VLAN on the Layer 2 switchOperation Command RemarksEnter system view system-view —Enable IGMP Snooping igmp-snooping enable —Enter VLAN view vlan vlan-id —Enable IGMP Snooping igmp-snooping enable RequiredEnable multicast VLAN service-type multicast RequiredReturn to system view quit —Enter Ethernet port view for theLayer 3 switchinterface interface-typeinterface-number —Define the port as a trunk orhybrid portport link-type { trunk |hybrid } Requiredport hybrid vlan vlan-list{ tagged | untagged }Specify the VLANs to beallowed to pass the Ethernetportport trunk permit vlan vlan-listRequiredThe multicast VLAN must beincluded, and the port must beconfigured to forward taggedpackets for the multicast VLANif the port type is hybrid.Enter Ethernet port view for auser deviceinterface interface-typeinterface-number —Define the port as a hybrid port port link-type hybrid RequiredSpecify the VLANs to beallowed to pass the portport hybrid vlan vlan-id-list{ tagged | untagged }RequiredThe multicast VLAN must beincluded, and the port must beconfigured to forward taggedpackets for the multicast VLAN.z One port can belong to only one multicast VLAN.z The port connected to a user terminal must be a hybrid port.z The multicast member ports must be in the same VLAN with the router port. Otherwise, themulticast member port cannot receive multicast packets.z If a router port is in a multicast VLAN, the router port must be configured as a trunk port or a hybridport that allows tagged packets to pass for the multicast VLAN. Otherwise, all the multicastmember ports in this multicast VLAN cannot receive multicast packets.z The multicast VLAN function and the VLAN mapping function cannot be configured at the sametime.Displaying and Maintaining IGMP SnoopingAfter the configuration above, you can execute the following display commands in any view to verifythe configuration by checking the displayed information.
