What should I do when a CE series switch license file changes to the trial state

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If a license in trial state expires, successfully delivered configurations of a licensed feature will be retained and take effect. You are allowed to delete existing service configurations related to the licensed feature, but not to add new configurations. Therefore, apply for a new license and activate it before the current license expires. Otherwise, services will be affected.

Other related questions:
Why is an interface in Down state on a CE series switch
If the indicator of a connected interface on a CE series switch is off, the interface does not go Up. You can run the display interface command on the switch to view the interface status. Common causes: 1. The interface is manually shut down. 2.The cable or optical fiber is faulty. 3. The optical module is faulty. 4. The local and remote interfaces fail to negotiate parameters including the duplex mode and rate. Recommended solutions: 1. Check whether the interface has been manually shut down using the shutdown command. If so, run the undo shutdown command in the interface view to enable the interface. 2. Connect the interface to another interface, and replace the optical module, optical fiber, or cable on the interface to check whether the interface, optical module, or optical fiber/cable is faulty. If the fault persists, see section "Interface Troubleshooting" in the Troubleshooting - Hardware.

What should I do if I failed to import the license file into the MCU?
The possible causes are as follows: First, check the license file. For example, check whether the license file has been damaged or whether you have applied for the correct license file. Second, check the import operations. For example, check whether the license file path is correct or whether the import operations are correct. For a VP9000 series MCU, if the import still fails, upgrade the MCU to V500R002C00 or a later version. It is because versions earlier than V500R002C00 do not support universal transfer. To import a universal transfer license, you must upgrade the MCU to V500R002C00 or a later version.

Upload a license file
A license file of a switch is saved on a PC reachable to the switch. The following uses the license file CloudEngine12800V100R006_20151218150734.dat as an example. You can upload the license file to a switch using any of the three methods described on the right.

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