The NE40E upgrades to V300R002C02B21B. The physical status of an interface of the Eth-Trunk changes. During the location of the fault, there is no such record in the logbuffer and log of the hard disk.
The case is applicable to the NE40E serials V300R002C02B21B.
Optimize the log output for the version. After the interface is added to the Eth-Trunk, the information level of the change of the physical status of the interface is reduced to "notification". By default, such level of information is not displayed in the logbuffer and log of the hard disk. You can change the level of the information center to record such information.
The information center is set incorrectly.
You can adjust the information center output so that the change of the physical status of the interface can be recorded in the log.
info-center source default channel 0 log level notification.
info-center source default channel 1 log level notification .