Alcatel-Lucent 6850-48 Guida Di Riferimento

Learned Port Security Commands

page 18-4

OmniSwitch CLI Reference Guide

Configures the amount of time in minutes to allow source learning on all LPS ports. This LPS parameter 
applies to the entire switch, so when the time limit expires, source learning of new MAC addresses is 
stopped on all LPS ports. Only configured authorized MAC addresses are still allowed on LPS ports after 
this timer expires. This command also enables or disables the conversion of dynamic MAC addresses to 
static MAC addresses on LPS ports.

port-security shutdown minutes [convert-to-static {enable | disable}]

The number of minutes that defines the amount of time in which LPS 
allows source learning across all LPS ports.

Enables the conversion of dynamic MAC addresses to static MAC 
addresses on the LPS port.

Disables the conversion of dynamic MAC addresses to static MAC 
addresses on the LPS port.

By default, the LPS source learning time limit is not set for the switch. 

OmniSwitch 6400, 6850, 6855, 9000, 9000E

• The LPS source learning time window is started and/or reset each time the port-security shutdown 

command is issued. 

• To automatically start the timer on switch reboot, save this command to the boot.cfg file for the switch. 

Each time the switch reboots, the timer is restarted. It is still possible at any time, however, to reset the 
timer by issuing the command again.

• Note that the LPS source learning time window has a higher priority over the maximum number of 

MAC addresses allowed. For example, if the maximum number of MAC addresses allowed is set at 30 
and the learning interval expires when the port has only learned 15, then the port will not learn 
anymore MAC addresses.

• If the convert-to-static parameter is enabled and the LPS source learning time window expires, then 

all dynamic MAC addresses are converted to static MAC addresses. This stops the MAC addresses 
from aging out. 

• The conversion of dynamic MAC addresses to static ones does not apply to LPS mobile and authenti-

cated ports.