Port-Security Timer Autolearn - 3Com 5500-EI PWR Reference Manual

Before setting the security mode to autolearn, you need to use the port-security max-mac-count
command to configure the maximum number of MAC addresses allowed on the port.
When a port operates in the autolearn mode, you cannot change the maximum number of MAC
addresses allowed on the port.
After setting the security mode to autolearn, you cannot configure static or blackhole MAC
addresses on the port.
When the port security mode is not noRestriction, you need to use the undo port-security
port-mode command to change it back to noRestriction before you change the port security
mode to other modes.
On a port configured with a security mode, you cannot do the following:
Configure the maximum number of MAC addresses that can be learned.
Configure the port as a reflector port for port mirroring.
Configure the port as a Fabric port.
Configure link aggregation.
Related commands: display port-security.
Examples
# Set the security mode of Ethernet 1/0/1 on the switch to userLogin.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] port-security enable
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] port-security port-mode userlogin

port-security timer autolearn

Syntax
port-security timer autolearn age
undo port-security timer autolearn
View
System view
Parameters
age: Aging time of the security MAC address entries, in the range 1 to 30240 minutes.
Description
Use the port-security timer autolearn command to configure the aging time for the security MAC
address entries that are learned by the port automatically.
Use the undo port-security timer autolearn command to restore the default.
By default, the aging time is 0, that is, the security MAC address entries are not aged.
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