Tp-Link TL-SL2428 [87/140] Multicast vlan

Router Port: Displays the router po

rt of the VLAN.

Note:

The settings here will be invalid when multicast VLAN is enabled

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 Configure the multicast

parameters for VLANs

Optional. Configure the multicast parameters for VLANs on

Multicast→IGMP Snooping→VLAN Config page.

If a VLAN has no multicast parameters configuration, it

indicates the IGMP Snooping is not enabled in the VLAN,

thus the multicast data in the VLAN will be broadcasted.

8.1.4 Multicast VLAN

In old multicast transmission mode, when users in different VLANs apply for join the same

multicast group, the multicast router will duplicate this multicast information and deliver each

VLAN owning a receiver one copy. This mode wastes a lot of bandwidth.

The problem above can be solved by configuring a multicast VLAN. By adding switch ports to the

multicast VLAN and enabling IGMP Snooping, you can make users in different VLANs share the

same multicast VLAN. This saves the bandwidth since multicast streams are transmitted only

within the multicast VLAN and also guarantees security because the multicast VLAN is isolated

from user VLANS.

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 8-7 Multicast VLAN