If an alarm j°BGP/2/BACKWARD is generated during BGP configuration, which of the following statements regarding the cause of this alarm is false?

The situation described involves the generation of a specific alarm related to BGP configuration, and the task is to identify the false statement regarding its cause. When considering the statement about the BGP Hold timer expiring and no Keepalive message being received, this is indeed a real scenario that can trigger alarms, particularly indicating that the BGP session has been lost due to inactivity, as both peers need to exchange Keepalive messages within the time defined by the Hold timer.

The other statements accurately reflect valid scenarios that could indeed cause a backward alarm. Receiving a Notification message from a neighbor indicates that there was an issue that precipitated a session tear-down, which is a legitimate event in BGP operations. Additionally, if the BGP peer relationship is proactively reset or disrupted, this would also be valid in causing an alarm as it directly impacts routing stability. Lastly, receiving an incorrect BGP message can violate protocol expectations and lead to an alarm as well.

Thus, the observation regarding the Hold timer and Keepalive messages is accurate and reflects a true cause for the alarm, making the assertion that this condition is false incorrect. The other scenarios all present valid situations that would logically lead to the generation of a BACKWARD alarm in BGP operations.