To manage the behavior of first arrival MAC locking on link state change, use the following command.
configure mac-locking ports port_list first-arrival link-down-action [clear-macs | retain-macs]
Clear MAC on link change is enabled by default.
When the link goes down, by default, all the first arrival MAC locking addresses will be removed. When link-down-action is configured to “retain-macs”, the first arrival MAC locking addresses will be retained even when the link goes down.
This command is used to configure the disabling of ports when the configured MAC threshold is met. This is used for both “first arrival” and “static” MAC locking methods.
configure mac-locking ports port_list learn-limit-action [disable-port | remain-enabled
The port is disabled when the configured MAC threshold is met. All the FDB (forwarding database) entries learned on this port are flushed as the port is disabled. This configuration can be reset using the clear mac-locking disabled-state ports port_list command. When MAC locking is disabled on the port, the port comes back up.
This command is used to return the behavior of first arrival MAC locking with link state change to its default value of enabled.
clear mac-locking disabled-state ports port_list
To delete MAC locking for all static MAC address or the specified static MAC address on the given port, use the following command:
configure mac-locking ports port_list static delete station [station_mac_address | all]
The following command is used to clear MAC locking station entries for the given parameters:
clear mac-locking station [all | {mac station_mac_address} {first-arrival | static} {ports port_list}]
Note
Clearing static MAC locking stations will remove them from the configuration. The cleared static MAC locking stations will not be saved across reboots.This command is used to display the status of MAC locking on one or more ports.
Note
In MLAG, the mac-locking entries shown in this command's output are only natively learned FDB entries on the switch.If port is not specified, MAC locking status will be displayed for all ports.
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Slot-1 Stack.2 # show mac-locking
MAC locking is globally enabled.
Port MAC Trap Log FA Limit Link Max Max Last Violating
Lock Thr|Viol Thr|Viol Aging Action Down Stc FA MAC Address
Stat Cfg|Stat Action
----- ---- -------- -------- ----- -------- ------ --- --- -----------------
1:1 dis off|off off|off dis ena|ena clear 64 600 00:00:00:00:00:00
1:2 dis off|off off|off dis ena|ena clear 64 600 00:00:00:00:00:00
1:3 dis off|off off|off dis ena|ena clear 64 600 00:00:00:00:00:00
1:4 dis off|off off|off dis ena|ena clear 64 600 00:00:00:00:00:00
1:5 dis off|off off|off dis ena|ena clear 64 600 00:00:00:00:00:00
Legend:
Stat - Status Thr|Viol - Threshold | Violation
Max Stc - Max Static Count Max FA - Max First-Arrival Count
dis - Disabled ena - Enabled
retain - Retain MACs clear - Clear MACs
Limit Action Cfg - If port should be disabled when learnt limit is exceeded
dis - Port to be disabled when learn limit is exceeded
ena - Port to remain enabled when learn limit is exceeded
Limit Action Stat - Port status on exceeding learn limit
The following command displays MAC locking stations for different parameters:
show mac-locking stations {first-arrival | static} {ports port_list}