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DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch CLI Manual
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delete fdb
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To delete a permanent FDB entry:
DGS-3450:admin# delete fdb default 00-00-00-00-01-02
Command: delete fdb default 00-00-00-00-01-02
Success.
DGS-3450:admin#
clear fdb
Purpose
Used to clear the switch’s forwarding database of all dynamically learned MAC addresses.
Syntax
clear fdb [ vlan <vlan_name 32> | port <port> | all ]
Description
The clear fdb command clears all dynamically learned MAC addresses from the switch’s
forwarding database..
Parameters
vlan_name
- The name of the VLAN on which the MAC address resides. The maximum
length is 32 characters.
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 and Operator-level users can issue this command.
Example usage:
To clear all FDB dynamic entries:
DGS-3450:admin# clear fdb all
Command: clear fdb all
Success.
DGS-3450:admin#
show multicast_fdb
Purpose
Used to display the contents of the switch’s multicast forwarding database.
Syntax
show multicast_fdb {[ vlan <vlan_name 32> | vlanid < vidlist > ]| mac_address
<macaddr>}
Description
The show multicast_fdb command displays the entries of the switch’s multicast forwarding
database.
Parameters
vlan_name
- The name of the VLAN on which the MAC address resides. The maximum
length is 32 characters.
vlanid
- Display the entries for the VLANs indicated by VID list.
macaddr
- Specifies a MAC address, for which FDB entries will be displayed.
If no parameter is specified, all multicast FDB entries will be displayed.
Restrictions
None.