After an interface on a CE switch becomes Up during the aging time, will the switch still detect MAC address flapping during the remaining aging time

The default aging time of flapped MAC addresses is 300 seconds. You can run the error-down auto-recovery cause mac-address-flapping interval interval-value command to configure it. After the command is executed, if MAC address flapping stops and the interface becomes Up after the delay, the CE switch no longer detects MAC address flapping during the remaining aging time. This is because the aging time does not expire. If detection on MAC address flapping is required, it is recommended that the delay for an interface to automatically become Up be set greater than the aging time of flapped MAC addresses.

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