M-LAG configuration consistency check classifies device configurations into key configurations (Type 1) and common configurations (Type 2). This check can be performed in strict or loose mode based on the processing mode when key configurations are inconsistent. Which of the following statements is false about M-LAG configuration consistency check?

The statement is false because in loose mode, if Type 1 (key) configurations are inconsistent, the member interface on the M-LAG backup device enters the Error-Down state. The master device's interface remains up to continue forwarding traffic. The statement incorrectly implies the master device's interface also goes down, which would be the behavior in strict mode. Loose mode is designed to minimize service interruption by keeping the master device active while flagging the inconsistency on the backup device.

B. This is a true statement. Inconsistent key configurations (Type 1) can lead to forwarding anomalies like traffic loops or blackholes, which is why the consistency check is critical.
C. This is a true statement. Type 2 configurations are less critical than Type 1. Inconsistencies typically only generate an alarm and have a lower impact on network stability.
D. This is a true statement. If Type 2 configurations are inconsistent, the system generates an alarm to notify the administrator, but it does not take disruptive action like shutting down an interface.

- Huawei CloudEngine Series Switches M-LAG Technology White Paper. Section: "M-LAG Configuration Consistency Check". The document explains that in loose mode, "If Type 1 configurations are inconsistent, the M-LAG member interface on the backup device enters the Error-Down state, and an alarm is generated." This confirms that only the backup device's interface is shut down.