NBFLT-MIB

Description: Defines NBase packet filter and traffic classification rule objects.

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NBFLT-MIB is an NBase enterprise MIB implementing the MAS Fault Manager for its Metro Access Switch product line, providing a structured framework for reporting device alarms and faults. It exposes agent run-state control, alarm formatting options for downstream systems, and a detailed alarm record structure carrying sequence number, timestamp, event code, event type, severity, originator, and multi-tenant/customer identifiers. As a fault/alarm-oriented MIB it is used explicitly for monitoring the operational health of the device by surfacing hardware and software faults as structured, severity-ranked alarm events rather than raw counters. It supports vendor-specific trap formats (Symposium, Cybele) for integration with particular fault-management systems, indicating dependency on those external NMS conventions. It is typically deployed in metro Ethernet/access network environments, often multi-tenant service-provider settings, where NBase MAS switches report faults centrally for real-time alarm correlation, and operators can download the NBFLT-MIB file to load it into their fault-management system for this purpose.

An admin would check nbFltAgentRunningState to confirm the fault manager itself is active, then monitor nbFltAlarmSequence and nbFltAlarmTimeStamp alongside nbFltAlarmEventCode/nbFltAlarmEventType/nbFltAlarmEventSeverity to see the latest fault raised by the switch. A high-severity nbFltAlarmEventSeverity tied to a specific nbFltAlarmOriginator and nbFltAlarmCustomerID would let a multi-tenant operator immediately identify which customer's service is affected by a hardware or software fault, with nbFltTrapOnAlarm controlling whether it's pushed as an SNMP trap in real time.

Nortel Multimedia Applications Centre fault management MIB for alarm trap generation and MAS SNMP agent status monitoring.