TP-Link 10GE T1700G-28TQUN V1 User Guide - Page 127

Multicast VLAN

Page 127 highlights

 VLAN Table Select: VLAN ID: Router Port Time: Member Port Time: Static Router Ports: Dynamic Router Ports: Select the desired VLAN ID for configuration. It is multi-optional. Displays the VLAN ID. Displays the router port time of the VLAN. Displays the member port time of the VLAN. Displays the static router ports of the VLAN. Displays the dynamic router ports of the VLAN. Note: The settings here will be invalid when multicast VLAN is enabled. Configuration procedure: Step Operation 1 Enable IGMP snooping function 2 Configure the multicast parameters for VLANs Description Required. Enable IGMP snooping globally on the switch and for the port on Multicast→IGMP Snooping→ Snooping Config and Port Config page. 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. 9.1.4 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. 117

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VLAN Table
Select:
Select the desired VLAN ID for configuration. It is multi-optional.
VLAN ID:
Displays the VLAN ID.
Router Port Time:
Displays the router port time of the VLAN.
Member Port Time:
Displays the member port time of the VLAN.
Static Router Ports:
Displays the static router ports of the VLAN.
Dynamic Router
Ports:
Displays the dynamic router ports 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.
9.1.4 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.
117