Introduction to “fxos-mibs-fp9k-fp4k.2.9.1.131.zip” Software

​​fxos-mibs-fp9k-fp4k.2.9.1.131.zip​​ is Cisco’s standardized Management Information Base (MIB) package designed for Firepower 4100/9300 series appliances running Firepower eXtensible Operating System (FXOS). This collection of compiled MIB files enables network administrators to monitor hardware status, fault conditions, and performance metrics through SNMP-based tools.

The package corresponds to FXOS version 2.9.1.131, released in Q1 2025 to support critical infrastructure monitoring requirements. These MIBs are essential for integrating Cisco Firepower chassis with enterprise-grade Network Management Systems (NMS) like SolarWinds or Nagios, allowing granular visibility into system health, security events, and resource utilization.

Key Features and Improvements

This release introduces critical enhancements for large-scale deployments:

  1. ​​Expanded OID Definitions​​

    • Adds SNMP traps for detecting FPGA firmware errors and supervisor module resets (e.g., .1.3.6.1.4.1.9.9.826.2.0.1 for active faults).
    • Supports monitoring of 100G network module interfaces on Firepower 9300 chassis.

  2. ​​Security Compliance​​

    • Resolves false-positive SNMP alert triggers caused by kernel panic events through refined error-state tracking.

  3. ​​Platform Synchronization​​

    • Aligns MIB structure with FXOS 2.9.1 firmware validation workflows, including compatibility with show validate-task command outputs.

Compatibility and Requirements

​​Supported Hardware​​ ​​Minimum FXOS Version​​ ​​SNMP Protocol​​
Firepower 4100 Series 2.9(1.120) SNMPv2c/SNMPv3
Firepower 9300 Series 2.9(1.131) SNMPv2c/SNMPv3
Secure Firewall 3100/4200 2.8(1.95) SNMPv3

​​Critical Notes​​:

  • MIB files are version-locked to specific FXOS releases. Using fxos-mibs-fp9k-fp4k.2.9.1.131.zip with older firmware (e.g., 2.7.x) may cause NMS parsing errors.
  • Requires recompilation in NMS environments using ASN.1 compilers like MG-Soft or iReasoning.

Accessing the Software Package

To download ​​fxos-mibs-fp9k-fp4k.2.9.1.131.zip​​, visit Cisco Software Download Portal and complete these steps:

  1. ​​Search Criteria​​

    • Product Category: ​​Security Appliances​​
    • Model: ​​Firepower 4100/9300 Series​​
    • Software Type: ​​MIB Files​​

  2. ​​Verification​​

    • Confirm the filename matches ​​fxos-mibs-fp9k-fp4k.2.9.1.131.zip​​ to avoid legacy version conflicts.

For enterprise licensing queries or bulk downloads, contact our support team through the portal’s service agent chat.

Technical Validation

Cisco recommends cross-referencing MIB implementations with FXOS CLI outputs using these commands:

plaintext复制
show system uptime        # Verify chassis operational time  
show system reset-reason  # Check fault history for SNMP correlation  
show validate-task        # Confirm firmware-MIB version alignment  




​​Related Resources​​


    

  • Cisco FXOS MIB Implementation Guide
    • 

  • Firepower 4100/9300 Release Notes
    • 



: FXOS MIB dependencies and version-specific compilation requirements

: FXOS firmware validation task monitoring

: System uptime tracking and fault diagnostics

: Hardware compatibility for 100G network modules


			

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