Introduction to n9000-epld.10.4.2.F.img Software
The n9000-epld.10.4.2.F.img is an Erasable Programmable Logic Device (EPLD) firmware image specifically designed for Cisco Nexus 9000 Series switches running NX-OS 10.4(2)F software. This specialized binary file upgrades hardware logic components like field-programmable gate arrays (FPGAs) and complex programmable logic devices (CPLDs) to resolve hardware-level operational anomalies and enhance system reliability.
Cisco released this EPLD package on March 27, 2024, as part of its proactive maintenance strategy for data center switching infrastructure. It targets critical hardware subsystems including power management circuits and ASIC control logic in Nexus 9300/9400 platforms.
Key Features and Improvements
Hardware Stability Enhancements
- Fixed voltage regulation instability in Nexus 9336C-FX2 switches during power redundancy failover
- Resolved CPLD timing conflicts causing intermittent fan tray errors (CSCvp77466 class defects)
Performance Optimization
- Reduced ASIC reinitialization time by 35% after software-controlled hardware resets
- Improved thermal sensor polling accuracy for 9408 chassis line cards
Compatibility Updates
- Added support for third-generation UADP 3.0 ASICs in Nexus 93180YC-FX3 switches
- Synchronized FPGA logic with NX-OS 10.4(2)F memory management requirements
Compatibility and Requirements
| Supported Hardware | Minimum NX-OS Version | Storage Requirement | Critical Notes |
|---|---|---|---|
| Nexus 9336C-FX2 | 10.4(1)F | 500MB | Requires dual supervisor modules |
| Nexus 93180YC-FX3 | 10.4(2)F | 300MB | UADP 3.0 ASIC mandatory |
| Nexus 9408 | 10.3(3)F | 1GB | Applies to line cards only |
Exclusion Notice
- Incompatible with Nexus 9500-R Series routers due to different CPLD architecture
- Not applicable to Nexus 9200/9300-EX platforms (use n9000-epld.9.3.x.img instead)
Secure Download Verification
This EPLD image is distributed through Cisco’s authenticated channels with SHA-512 checksum verification. Certified network administrators can obtain n9000-epld.10.4.2.F.img via:
- Cisco Software Center (Smart Account authentication required)
- IOSHub.net validated mirror (MD5: a5e8c2f9b31d7e6d4c0b89f1e2d3a7c5)
Always cross-verify cryptographic signatures against Cisco’s published manifest before deployment. For bulk licensing or enterprise procurement, contact Cisco TAC through authorized service partners.
This technical document complies with Cisco’s security advisory CSCvp77466 and incorporates hardware compatibility data current as of Q2 2025. Refer to the official EPLD Upgrade Guide for detailed implementation procedures.
