Forwarding Database Information
To display the following form, select Layer 2 > FDB.
The forwarding database (FDB) contains information that maps the media access control (MAC) address
of each known device to the switch port where the device address was learned. The FDB also shows
which other ports have seen frames destined for a particular MAC address.
The master forwarding database supports up to 8K MAC address entries on the MP per
The following table describes the Forwarding Database Information controls:
Forwarding Database Information controls
Show Entries of a Specific Source Port
Show Entries of a Specific State
Show Entries of a Specific VLAN
Show Entry of a Specific MAC address
Clear Dynamic MACs
Displays FDB entries for the selected port(s).
Displays FDB entries by state.
Displays FDB entries for the selected VLAN.
Displays a single FDB entry by IP address.
Enter the MAC address using the format, xx:xx:xx:xx:xx:xx.
For example, 08:00:20:12:34:56
Removes learned FDB entries.
Displays the numeric identifier of the FDB entry.
Displays the MAC address of the FDB entry.