Configuring FDB Entries 6-3
Configuring FDB
Entries
To configure entries in the FDB, use the commands listed in Table 6-1.
FDB Configuration
Example
This example adds a permanent entry to the FDB:
create fdbentry 02:60:8c:12:34:56 vlan marketing port 4
The permanent entry has the following characteristics:
■ MAC address is 02608c123456
■ VLAN name is marketing
■ Port number for this device is 4
Displaying FDB
Entries
To display FDB entries, use the command:
show fdb {all | <mac_address> | vlan <name> | <portlist> |
permanent}
Where:
■ all — displays all FDB entries
■ mac_address — displays the entry for a particular MAC address
■ vlan <name> — displays the entries for a VLAN
Table 6-1 FDB Configuration Commands
Command Description
create fdbentry <mac_address> vlan
<name> <portlist>
Allows you to create a permanent FDB entry. Specify the
following:
■ mac_address — Device MAC address, using colon
separated bytes
■ name — VLAN associated with MAC address
■ portlist — Port number associated with MAC address
If more than one port number is associated with a
permanent MAC entry, packets will be multicast to the
multiple destinations.
config fdb agingtime <delay> Allows you to configure the FDB ageing time. The range is
15 through 1,000,000 seconds. The default value is 1800
seconds. A value of 0 indicates that the entry should
never be aged out.
SW3800.BK Page 3 Tuesday, May 5, 1998 5:20 PM
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