DGS-3024 Layer 2 Switch CLI Reference Manual 
11 
FORWARDING DATABASE COMMANDS 
The layer 2 forwarding database commands in the Command Line Interface (CLI) are listed (along with the appropriate 
parameters) in the following table. 
Command Parameters 
create fdb  <vlan_name 32> <macaddr> port <port> 
create multicast_fdb  <vlan_name 32> <macaddr> 
config multicast_fdb  <vlan_name 32><macaddr> [add | delete] <portlist> 
config fdb aging_time 
minutes 
<int 0-14400> 
show fdb aging_time   
clear fdb  [vlan <vlan_name 32> | port <port> | all] 
show multicast_fdb  {vlan <vlan_name 32> | mac_address <macaddr>} 
show fdb  {port <port> | vlan <vlan_name 32> mac_address <macaddr> | 
static | aging_time} 
delete fdb  <vlan_name 32> <macaddr> 
Each command is listed, in detail, in the following sections. 
create fdb 
Purpose  Used to create a static entry to the unicast MAC address forwarding 
table (database) 
Syntax 
create fdb <vlan_name 32> <macaddr> port <port> 
Description  This command will make an entry into the Switch’s unicast MAC 
address forwarding database. 
Parameters 
<vlan_name 32> − The name of the VLAN on which the MAC 
address resides. 
<macaddr> − The MAC address that will be added to the forwarding 
table. 
port <port> − The port number corresponding to the MAC destination 
address. The Switch will always forward traffic to the specified 
device through this port. 
Restrictions Only administrator-level users can issue this command. 
Example usage: 
To create a unicast MAC FDB entry: 
DGS-3024:4#create fdb default 00-00-00-00-01-02 port 2 
Command: create fdb default 00-00-00-00-01-02 port 2 
 
Success. 
 
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