User Guide

Before configuring a multicast VLAN, you should firstly configure a VLAN as multicast VLAN and
add the corresponding ports to the VLAN on the 802.1Q VLAN page. If the multicast VLAN is
enabled, the multicast configuration for other VLANs on the VLAN Config page will be invalid, that
is, the multicast streams will be transmitted only within the multicast VLAN.
Choose the menu Multicast→IGMP Snooping→Multicast VLAN to load the following page.
Figure 8-9 Multicast VLAN
The following entries are displayed on this screen:

Multicast VLAN
Multicast VLAN: Select Enable/Disable Multicast VLAN feature.
VLAN ID: Enter the VLAN ID of the multicast VLAN.
Router Port Time:
Specify the aging time of the router port. Within this time, if the
switch doesn’
t receive IGMP query message from the router port,
it will consider this port is not a router port any more.
M ember Port Time :
Specify the aging time of the member port. Within this time, if the
switch doesn’
t receive IGMP report message from the member
port, it will consider this port is not a member port any more.
Leave Time:
Specify the interval between the switch receiving a leave message
from a host, and the switch removing the host from the multicast
groups.
Router Ports: Enter
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.
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