Which alarm severity monitors serious events that affect but do not shut down a network function?

Major alarms indicate serious events that impact a network function but do not cause a complete shutdown. These events require immediate attention to prevent further degradation or potential outages. Critical alarms, on the other hand, signify an immediate and complete loss of a network function, demanding urgent intervention. Medium and Minor alarms represent less severe issues; Medium alarms might indicate a service degradation, while Minor alarms are typically informational or indicate a potential issue that doesn't immediately affect service.