D-Link xStack DGS-3420 Series Reference Manual page 152

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch Web UI Reference Guide
Data Driven Learning
State
Data Driven Learning
Aged Out
Version
Click the Apply button to accept the changes made.
Click the <<Back button to discard the changes made and return to the previous page.
After clicking the Modify Router Port
The fields that can be configured are described below:
Parameter
Unit
Static Router Port
Forbidden Router Port
by default.
Specifies to enable or disable the data driven learning of a MLD snooping group. When
the data-driven learning is enabled for the VLAN, when the switch receives the IP
multicast traffic, on this VLAN, an MLD snooping group will be created. That is, the
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 the
aging out of the entry. For a data-driven entry, the entry can be specified not to be age
out or to be aged out by the aged timer. When the data driven learning is enabled, and
data driven table is not full, the multicast filtering mode for all ports are ignored. That is,
the multicast packets will be forwarded to router ports. If data driven learning table is
full, the multicast packets will be forwarded according to multicast filtering mode.
Note: If a data-driven group is created and MLD member ports are learned later, the
entry will become an ordinary MLD snooping entry. That is, the aging out mechanism
will follow the ordinary MLD snooping entry.
Specifies to enable or disable the aging of the entry. This is disabled by default.
Specify the version of MLD packet that will be sent by this port. If a MLD packet
received by the interface has a version higher than the specified version, this packet
will be forwarded from the router ports or VLAN flooding.
link, the following page will appear:
Figure 4-72 MLD Snooping Router Port Settings window
Description
Select the unit you wish to configure.
This section is used to designate a range of ports as being connected to multicast-
enabled routers. This will ensure that all packets with such a router as its destination
will reach the multicast-enabled router regardless of the protocol.
This section is used to designate a range of ports as being not connected to multicast-
141