DES-3550 Layer 2 Fast Ethernet Switch
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_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.
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:
DES-3550:4#clear fdb all
Command: clear fdb all
Success.
DES-3550:4#
115
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