Technical data

RackSwitch G8000 ISCLI Reference
Chapter 7: Maintenance Commands
 189BMD00128, September 2009
Forwarding Database Maintenance
The Forwarding Database commands can be used to view information, to delete a MAC
address from the forwarding database, or to clear the entire forwarding database. This is
helpful in identifying problems associated with MAC address learning and packet forwarding
decisions.
Table 7-2 FDB Manipulation Commands
Command Syntax and Usage
show mac-address-table address {<MAC address>}
Displays a single database entry by its MAC address. You are prompted to enter the MAC address
of the device. Enter the MAC address using the following formats:
xx:xx:xx:xx:xx:xx format (such as 08:00:20:12:34:56)
or
xxxxxxxxxxxx format (such as 080020123456)
Command mode: All except User EXEC
show mac-address-table interface port {<port number>}
Displays all FDB entries for a particular port.
Command mode: All except User EXEC
show mac-address-table vlan {<VLAN number>}
Displays all FDB entries on a single VLAN.
Command mode: All except User EXEC
show mac-address-table state {forward|trunk|unknown}
Displays all FDB entries of a particular state.
Command mode: All except User EXEC
no mac-address-table {<MAC address>|<VLAN number>|all}
Removes static FDB entries.
Command mode: All except User EXEC
show mac-address-table
Displays all entries in the Forwarding Database.
Command mode: All except User EXEC
clear mac-address-table
Clears the entire Forwarding Database from switch memory.
Command mode: All except User EXEC