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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 10-9 Multicast VLAN

The following entries are displayed on this screen:



Multicast VLAN

Multicast VLAN:

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.

Member 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.

Replace Source IP:

Specify the source IP which will replace the source of IGMP

Request in multicast vlan.

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.