Persistent Auto Smartport Interface

If the Persistent Status of an interface is enabled, its Smartport type and the configuration that is already applied dynamically by Auto Smartport will remain at the interface even after the attaching device ages out, the interface goes down, and the switch is rebooted. The SmartPort type and the configuration of the interface are not changed unless Auto Smartport detects an attaching device with a different Smartport. If the Persistent Status of an interface is disabled, the interface reverts to the default Smartport type when the attaching device to it ages out, the interface goes down, and the switch is rebooted. Enabling Persistent on an interface eliminates the device detection delay that otherwise will occur.

NOTE     The persistence of the Smartport types applied to the interfaces are effective between reboots only if the running configuration with the Smartport type applied at the interfaces are saved to the startup configuration file.