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delete fdb
Purpose Used to delete an entry to the switch’s forwarding database.
Syntax
delete fdb <vlan_name 32> <macaddr>
Description This command is used to delete a previous entry to the switch’s
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.
Restrictions Only administrator-level users can issue this command.
Example usage:
To delete a permanent FDB entry:
DES-3550:4#delete fdb default 00-00-00-00-01-02
Command: delete fdb default 00-00-00-00-01-02
Success.
DES-3550:4#
Example usage:
To delete a multicast fdb entry:
DES-3550:4#delete fdb default 01-00-00-00-01-02
Command: delete fdb default 01-00-00-00-01-02
Success.
DES-3550:4#
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_name 32> − The name of the VLAN on which the MAC
address resides.
<port> − The port number corresponding to the MAC destination
address. The switch will always forward traffic to the specified device