Mld Snooping Settings - D-Link xStack DES-3200 Series Reference Manual

The Switch allows you to implement data driven learning for MLD snooping groups. If data-driven learning, also
known as dynamic IP multicast learning, is enabled for a VLAN, when the Switch receives IP multicast traffic on the
VLAN, an MLD snooping group is created. Learning of an entry is not activated by MLD membership registration,
but activated by the traffic. For an ordinary MLD snooping entry, the MLD protocol will take care of the aging out of
the entry. For a data-driven entry, the entry can be specified not to age out or to age out by a timer.
When the data driven learning State is enabled, the multicast filtering mode for all ports is ignored. This means
multicast packets will be flooded.
NOTE: If a data-driven group is created and MLD member ports are learned later, the entry will
become an ordinary MLD snooping entry. In other words, the aging out mechanism will follow
the conditions of an ordinary MLD snooping entry.
Data driven learning is useful on a network which has video cameras connected to a Layer 2 switch that is
recording and sending IP multicast data. The switch needs to forward IP data to a data centre without dropping or
flooding any packets. Since video cameras do not have the capability to run MLD protocols, the IP multicast data
will be dropped with the original MLD snooping function.

MLD Snooping Settings

Users can configure the settings for MLD snooping.
To view the following window, click L2 Features > L2 Multicast Control > MLD Snooping > MLD Snooping
Settings, as show below:
The fields that can be configured are described below:
Parameter
MLD Snooping State
Max Learning Entry Value
(1-1024)
Click the Apply button to accept the changes made for each individual section.
Click the Edit button to configure the MLD Snooping Parameters Settings for a specific entry.
Click the Modify Router Port
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist.
After clicking the Edit button, the following page will appear:
xStack® DES-3200 Series Layer 2 Managed Fast Ethernet Switch
Figure 4-48 MLD Snooping Settings window
Description
Click to enable or disable the MLD snooping state.
Enter the maximum learning entry value.
link to configure the MLD Snooping Router Port Settings for a specific entry.
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