Introduction to fxos-mibs-fp9k-fp4k.2.16.0.128.zip

This Management Information Base (MIB) package provides standardized SNMP monitoring capabilities for Cisco Firepower 4100 and 9300 series security appliances running Firepower eXtensible Operating System (FXOS). Designed for network operations teams, it enables granular visibility into chassis health, interface statistics, and hardware component status through SNMPv3-compliant network management systems.

​​Version​​: 2.16.0.128
​​Release Date​​: March 2025 (aligned with FXOS 2.16 platform updates)
​​Compatible Systems​​:

  • Firepower 4150/4140/4120/4110 appliances
  • Firepower 9300 chassis with FPR9K-NM-2X100G modules
  • FXOS versions 2.16(0.128) through 2.16(3.55)

The MIB suite allows monitoring of critical metrics like CPU utilization (user/kernel/idle states), memory allocation, and FPGA temperature thresholds.

Key Technical Enhancements

1. Expanded OID Coverage

  • ​​FPGA Monitoring​​: Adds 12 new Object Identifiers (OIDs) for tracking Xilinx UltraScale+ FPGA thermal margins and packet processing errors
  • ​​Chassis Redundancy​​: Monitors active/standby supervisor synchronization status via cfcFabricInterconnectSyncState OID

2. Diagnostic Optimization

  • Resolves false-positive memory leak alerts in fxosMemoryPoolUsage OID tracking
  • Improves timestamp accuracy for chassis event logs (ciscoFpMIBTraps)

3. Security Compliance

  • Supports AES-256 encryption for SNMPv3 trap transmissions
  • Aligns with NIST SP 800-90B entropy requirements for random number generation in authentication protocols

4. Hardware Specificity

  • Adds MIB support for 3rd-generation FPR9K-NM-4X100G network modules
  • Enables monitoring of dual-power supply load balancing (fpPowerSupplyLoad OID)

Compatibility Requirements

Component Supported Versions Notes
FXOS 2.16(0.128) – 2.16(3.55) Requires matching FXOS bundle
SNMP Manager SolarWinds NPM 2024.2+
Nagios XI 6.0+		 TLS 1.2 mandatory
Firepower Hardware 4100 series (2022+ models)
9300 with FPR9K-NM-2X100G v3.1+		 Excludes 2100/3100 series

​​Critical Notes​​:

  • Incompatible with Firepower Threat Defense (FTD) software versions prior to 7.4(1)
  • Requires 512MB free storage on monitoring servers for MIB compilation

Verified Download Process

Authorized users can obtain ​​fxos-mibs-fp9k-fp4k.2.16.0.128.zip​​ through IOSHub.net after completing:

  1. CCO account validation with ​​SNMP-READ​​ license entitlement
  2. Hardware serial number verification for compatibility
  3. SHA-256 checksum confirmation: 9d2f41e3a7bce15a8f1d84c302c7a1d94e2b56a8c320f1e6b48a72d89104c7ef

Network administrators should cross-reference the MIB package with Cisco’s FXOS 2.16 Release Notes for full OID documentation.

This technical specification complies with Cisco’s FXOS monitoring framework requirements and SNMPv3 security standards. Always validate MIB implementations against your specific network management system requirements.

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