Nor,
Please find below link to request for the temp license:
Temporary licenses are used for evaluating new capabilities or in emergency situations. A temporary license allows a feature set to be used for 60 days of actual usage. When the 60-day period expires, the device will continue to operate normally until reloaded. After the reload, the device will default to the original functionality before the temporary license was enabled. Only the actual time that the temporary license is enabled counts towards the 60-day limit. The Cisco Technical Assistance Center (TAC) can provide an extension license for longer trials or other circumstances.
A temporary license for the Cisco Catalyst 3750-E/3560-E and 3750-X/3560-X switches can be obtained here:https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet?DemoKeys=Y.
HTH
Inayath
*Plz rate if this info is helpfull.