Can the license file of a CE series switch be successfully loaded if its version is later than the system software version

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For a CE series switch, a license file cannot be successfully loaded if its version is later than the system software version. You are advised to apply for a license file in the same version as the system software and load the license file.

Other related questions:
APs are successfully loaded with version files in batches using FTP. Why are they reset repeatedly and loaded with the version files again
The fault occurs due to version ID mismatch. To rectify the fault, change the version ID in the AP upgrade file name to be the same as the version ID in the AP upgrade file.

Is the U1900 license of a later version applicable to the device of an earlier version?
The device of an earlier version is not compatible with the U1900 license of a later version. When the device of an earlier version is upgraded to the later version, no license upgrade is required.

Is the voice file universal across different versions of the U1900 series unified gateway
The number of channels in the voice file varies depending on the U1900 version. The voice file for a specific version cannot be uploaded to the U1900 of another version.

How can I cancel security hardening in versions later than SMC2.0 V100R003?
For details about how to cancel security hardening in versions later than SMC2.0 V100R003, see Method of Canceling Security Hardening in Versions Later Than SMC2.0 V100R003.

How does an S series switch process IGMP messages of a later version
If the version of a received IGMP message is later than the IGMP snooping version configured on the switch, the switch processes the IGMP message as follows: - If the received message is a Report message, the switch forwards the message only to router ports and does not generate a member port or forwarding entry. - If the received message is a Query message, the switch broadcasts the message in the VLAN and sets the receiving port as a router port. After the multicast VLAN service is configured, IGMP messages are replicated and broadcast in user VLANs. If the switch receives many Group-Specific Query messages of a later version, the CPU usage may become high. If IGMP messages of a later version degrade service performance on the switch, change the IGMP snooping version to the later version.

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