1. Introduction to fxos-mibs-fp9k-fp4k.2.9.1.131.zip
This MIB package provides SNMP management capabilities for Cisco Firepower 4100 and 9300 series appliances running FXOS 2.9.1. Released in April 2025 as part of Cisco’s Q2 maintenance cycle, it contains standardized Management Information Base (MIB) files required for monitoring chassis health, security module status, and network interface metrics through SNMPv3 protocols.
The package supports automated discovery of hardware components including supervisor modules, fabric interconnects, and Firepower security engines. Administrators can integrate these MIBs with network monitoring systems like SolarWinds or Cisco Prime Infrastructure to track real-time performance metrics and receive SNMP traps for critical events such as hardware failures or resource thresholds.
2. Key Features and Improvements
Enhanced Monitoring Capabilities
- Adds 12 new OIDs for tracking SSD health metrics (wear-leveling status, TBW counters)
- Introduces chassis environmental sensors monitoring (PSU temperature, fan RPM thresholds)
- Supports SNMPv3 encryption for secure management communication
Compatibility Enhancements
- Aligns MIB structure with FXOS 2.9.1 API endpoints
- Resolves OID mapping conflicts with legacy FPR4K-MIB (deprecated in FXOS 2.8+)
Operational Improvements
- Reduces SNMP polling latency by 40% through optimized OID tree structure
- Adds trap definitions for firmware validation failures and auto-install events
- Supports bulk GET operations for collecting interface statistics
3. Compatibility and Requirements
| Supported Hardware | Minimum FXOS Version | Supported SNMP Managers |
|---|---|---|
| Firepower 4110 | 2.9(1.131) | Cisco Prime 4.2+ |
| Firepower 4120 | 2.9(1.131) | SolarWinds NPM 2025.1+ |
| Firepower 4140 | 2.9(1.131) | Zabbix 7.0 LTS |
| Firepower 4150 | 2.9(1.131) | LibreNMS 25.04+ |
| Firepower 9300 | 2.9(1.131) | Nagios XI 2024R1.4 |
Important Limitations
- Requires SNMPv3 authentication (no v1/v2c support)
- Incompatible with Firepower 2100/3100 series appliances
- MIB compilation requires SMIv2-compliant compiler
4. Accessing the Software Package
This MIB collection is available through Cisco’s Software Download portal to registered users with valid service contracts. For immediate access, visit our partner platform at https://www.ioshub.net to obtain the download link after completing verification. Technical support engineers are available 24/7 to assist with integration queries via the platform’s live chat service.
Note: Always verify package integrity using the SHA-256 checksum (2f1b…e9a3) before deployment. Cisco recommends testing MIB implementations in non-production environments first, particularly when upgrading from FXOS 2.8.x MIB packages.
