HP Manager Software manual Clear fdb, Deletes an entry from the forwarding database FDB

96CHAPTER 5: VLAN COMMANDS

clear fdb Deletes an entry from the forwarding database (FDB).

Syntax — clear fdb {perm static dynamic

port port-list} [vlan vlan-id] [tag tag-value]

„perm — Clears permanent entries. A permanent entry does not age out and remains in the database even after a reboot, reset, or power cycle. You must specify a VLAN name or number with this option.

„static — Clears static entries. A static entry does not age out, but is removed from the database after a reboot, reset, or power cycle. You must specify a VLAN name or number with this option.

„dynamic — Clears dynamic entries. A dynamic entry is automatically removed through aging or after a reboot, reset, or power cycle. You are not required to specify a VLAN name or number with this option.

„port port-list— Clears dynamic entries that match destination ports in the port list. You are not required to specify a VLAN name or number with this option.

„vlan vlan-id— VLAN name or number—required for removing permanent and static entries. For dynamic entries, specifying a VLAN removes entries that match only that VLAN. Otherwise, dynamic entries that match all VLANs are removed.

„tag tag-value— VLAN tag value that identifies a virtual port. If you do not specify a tag value, MSS deletes only entries that match untagged interfaces. Specifying a tag value deletes entries that match only the specified tagged interfaces

Defaults — None.

Access — Enabled.

History —Introduced in MSS Version 3.0.

Usage — You can delete forwarding database entries based on entry type, port, or VLAN. A VLAN name or number is required for deleting permanent or static entries.

Examples — The following command clears all static forwarding database entries that match VLAN blue:

WX4400# clear fdb static vlan blue success: change accepted.