TP-LINK JetStream TL-SG3216 TL-SG3216 Data Sheet

 

Displays the router port of the VLAN. 

The settings here will be invalid when multicast VLAN is enabled 

Configuration procedure: 

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. 

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 

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