D-Link DGS-3620-28PC-EI, Руководство по эксплуатации продукта

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xStack® DGS-3620 Series Managed Switch Web UI Reference Guide
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Figure 4-66 MLD Proxy Downstream Settings window
The fields that can be configured are described below:
Parameter Description
VLAN Name
Enter the VLAN Name which belongs to the MLD proxy downstream interface.
VID List
Enter a list of VLANs which belong to the MLD proxy downstream interface.
Downstream Action
Use the drop-down menu to add or delete a downstream interface.
Click the
Apply
button to accept the changes made.
MLD Proxy Group
This window displays the MLD Proxy Group settings.
To view the following window, click
L2 Features > L2 Multicast Control > MLD Proxy > MLD Proxy Group
, as
show below:
Figure 4-67 MLD Proxy Group window
Click the
Member Ports link to view the MLD proxy member port information.
After clicking the Member Ports option, the following window will appear.
Figure 4-68 MLD Proxy Group – Member Ports window
MLD Snooping
Multicast Listener Discovery (MLD) Snooping is an IPv6 function used similarly to IGMP snooping in IPv4. It is used
to discover ports on a VLAN that are requesting multicast data. Instead of flooding all ports on a selected VLAN
with multicast traffic, MLD snooping will only forward multicast data to ports that wish to receive this data through
the use of queries and reports produced by the requesting ports and the source of the multicast traffic.
MLD snooping is accomplished through the examination of the layer 3 part of an MLD control packet transferred
between end nodes and a MLD router. When the Switch discovers that this route is requesting multicast traffic, it
adds the port directly attached to it into the correct IPv6 multicast table, and begins the process of forwarding
multicast traffic to that port. This entry in the multicast routing table records the port, the VLAN ID, and the