Introduction to “fxos-mibs-fp2k.2.6.1.133.zip” Software

​​fxos-mibs-fp2k.2.6.1.133.zip​​ is Cisco’s standardized SNMP Management Information Base (MIB) package for Firepower 2100 and 4100 series appliances running Firepower eXtensible Operating System (FXOS) version 2.6.1. This collection of compiled MIB files enables administrators to monitor hardware health metrics, interface statistics, and system events through SNMPv2c/v3-compatible network monitoring tools like SolarWinds or PRTG.

Released in Q4 2024, this package addresses compatibility requirements for monitoring 40G/100G network modules in hybrid deployment environments. It serves as the critical bridge between physical hardware telemetry and enterprise IT monitoring ecosystems, supporting real-time alerting for fan failures, power supply anomalies, and NPU utilization thresholds.

Key Features and Improvements

This MIB package revision introduces essential upgrades for modern security operations:

  1. ​​Expanded Hardware Monitoring​​

    • Adds OID definitions for monitoring Firepower 4145/4155 chassis with dual supervisor modules (.1.3.6.1.4.1.9.9.826.1.3.1.5)
    • Supports SNMP traps for SSD health degradation warnings (70%+ wear-leveling threshold)

  2. ​​Protocol Enhancements​​

    • Synchronizes MIB structures with FXOS 2.6.1’s enhanced TCP/IP stack diagnostics
    • Resolves false-positive link flap alerts on QSFP28 interfaces through revised carrier loss detection logic

  3. ​​Security Compliance​​

    • Implements RFC 5593 standards for SNMPv3 context engine ID synchronization
    • Removes deprecated DES encryption support from legacy MIB objects

Compatibility and Requirements

​​Supported Hardware​​ ​​Minimum FXOS Version​​ ​​SNMP Protocol​​
Firepower 2110/2120/2130 2.6(1.120) SNMPv3
Firepower 4145/4155 2.6(1.133) SNMPv2c/SNMPv3
Firepower 4100 Series Expansion Modules 2.5(1.95) SNMPv3

​​Critical Notes​​:

  • Requires recompilation in NMS platforms using ASN.1 compilers supporting 64-bit counter types
  • Incompatible with Firepower 9300 MIB packages due to chassis architecture differences

Accessing the Software Package

To download ​​fxos-mibs-fp2k.2.6.1.133.zip​​, visit Cisco Software Download Portal and complete these steps:

  1. ​​Search Criteria​​

    • Product Category: ​​Firepower Series Security Appliances​​
    • Model: ​​Firepower 2100/4100​​
    • Software Type: ​​MIB Files​​

  2. ​​Version Verification​​

    • Match the FXOS chassis version with the MIB package using CLI command:
    plaintext复制
    show version | include Platform

For bulk deployment licensing or technical validation, contact our support team through the portal’s service agent chat.

Technical Validation

Cross-reference MIB implementations using these FXOS diagnostic commands:

plaintext复制
show environment temperature  # Verify thermal sensor alignment  
show interface ethernetX/Y    # Validate port statistics collection  
show processes memory detail # Monitor NPU memory utilization thresholds  




​​Related Resources​​


    

  • Cisco FXOS MIB Implementation Guide
    • 

  • Firepower 2100/4100 Release Notes
    • 



: Supervisor module health monitoring thresholds

: SSD wear-leveling alert triggers

: 40G/100G interface statistics collection

: SNMPv3 context engine synchronization requirements


			

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