Specifications

132
Static Router Ports: Select the desired port as the static router port which is mainly
used in the network with stable topology.
Note:
1. The router port should be in the multicast VLAN, otherwise the member ports cannot receive
multicast streams.
2. The Multicast VLAN won't take effect unless you first complete the configuration for the
corresponding VLAN owning the port on the 802.1Q VLAN page.
3. It is recommended to choose GENERAL as the link type of the member ports in the multicast
VLAN.
4. Configure the link type of the router port in the multicast VLAN as TRUNK or configure the
egress rule as TAG and the link type as GENERAL otherwise all the member ports in the
multicast VLAN cannot receive multicast streams.
5. After a multicast VLAN is created, all the IGMP packets will be processed only within the
multicast VLAN.
Configuration procedure:
Step Operation Description
1
Enable IGMP Snooping
function
Required. Enable IGMP Snooping globally on the switch
and for the port on Multicast→IGMP
Snooping→Snooping Config and Port Config page.
2 Create a multicast VLAN Required. Create a multicast VLAN and add all the member
ports and router ports to the VLAN on the VLAN→802.1Q
VLAN page.

Configure the link type of the member ports as
GENERAL.

Configure the link type of the router ports as TRUNK or
configure the egress rule as tagged GENERAL.
3
Configure parameters for
multicast VLAN
Optional. Enable and configure a multicast VLAN on the
Multicast→IGMP Snooping→Multicast VLAN page.
It is recommended to keep the default time parameters.
4 Look over the configuration
If it is successfully configured, the VLAN ID of the multicast
VLAN will be displayed in the IGMP Snooping Status table
on the Multicast→IGMP Snooping→
Snooping Config
page.
9.1.5 Querier Config
In an IP multicast network that runs IGMP, a Layer 3 multicast device works as an IGMP querier to
send IGMP queries and manage the multicast table. But IGMP is not supported by the devices in
Layer 2 network. IGMP Snooping Querier can act as an IGMP Router in Layer 2 network. It can
help to create and maintain multicast forwarding table on the switch with the Query messages it
generates.