108 | Chapter 3: Configuring Switching Information
FS728TP Smart Switch Software Administration Manual
The following table describes the fields in the IGMP Snooping Table.
Use the buttons at the bottom of the page to perform the following actions:
• Click Clear to clear one or all of the IGMP Snooping entries.
• Click Refresh to reload the page and display the most current information.
Multicast Forwarding Database Table
The Layer 2 Multicast Forwarding Database (MFDB) is used by the switch to make
forwarding decisions for packets that arrive with a multicast destination MAC address. By
limiting multicasts to only certain ports in the switch, traffic is prevented from going to parts of
the network where that traffic is unnecessary.
Field Description
MAC Address A multicast MAC address for which the switch has forwarding and/or filtering
information. The format is 6 two-digit hexadecimal numbers that are
separated by colons, for example, 01:00:5e:45:67:89.
VLAN ID A VLAN ID for which the switch has forwarding and filtering information.
Type This displays the type of the entry. Static entries are those that are
configured by the end user. Dynamic entries are added to the table as a
result of a learning process or protocol.
Description The text description of this multicast table entry. Possible values are
Management Configured, Network Configured, and Network Assisted.
Interface The list of interfaces that are designated for forwarding (Fwd) and filtering
(Flt) for the associated address.
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