D-Link DGS-3700-12G [104/338] Clear fdb

DGS-3312SR Layer 3 Gigabit Switch

Command: delete fdb default 01-00-00-00-01-02

Success.

DGS-3312SR:4#

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 This command is used to clear dynamically learned entries to

the switch’s forwarding database.

Parameters

vlan <vlan_name 32> − The name of the VLAN on which the

MAC address resides.

port <port> − The port number corresponding to the MAC

destination address. The switch will always forward traffic to the

specified device through this port. The port list is specified by

listing the lowest switch number and the beginning port number

on that switch, separated by a colon. Then the highest switch

number, and the highest port number of the range (also

separated by a colon) are specified. The beginning and end of

the port list range are separated by a dash. For example, 1:3

specifies switch number 1, port 3. 2:4 specifies switch number 2,

port 4. 1:3-2:4 specifies all of the ports between switch 1, port 3

and switch 2, port 4 − in numerical order.

all − Clears all dynamic entries to the switch’s forwarding

database.

Restrictions Only administrator-level users can issue this command.

Example usage:

To clear all FDB dynamic entries:

DGS-3312SR:4#clear fdb all

Command: clear fdb all

Success.

DGS-3312SR:4#