Introduction to n9000-epld.10.3.5.M.img
This critical firmware package provides Field Programmable Gate Array (FPGA) updates for Cisco Nexus 9300/9500 series switches running NX-OS 10.3(5)M. Designed to resolve hardware-level compatibility issues, it ensures proper recognition of 400G QSFP-DD optical modules and third-party Direct Attach Cables (DACs) in ACI mode deployments.
Validated under Cisco’s ACI 5.2(3d) architecture, this EPLD update addresses 12 hardware-related defects reported in production environments since Q2 2024. The package maintains backward compatibility with NX-OS 10.2(3)QF and later versions.
Key Features and Improvements
- Optical Interface Optimization
- Full support for NVIDIA ConnectX-7 400G adapters
- Improved Finisar FTL4D4CQE4C QSFP-DD module recognition latency (reduced from 8.2s to 1.5s)
- Thermal Management
- 18% improvement in ASIC heat dissipation efficiency
- Dynamic fan speed calibration for mixed airflow configurations
- Security Enhancements
- SHA-384 signature verification for firmware authenticity checks
- Hardware-level mitigation for CVE-2024-20356 (FPGA buffer overflow)
- Defect Resolution
- CSCvp77466: I2C bus timeout errors during bulk configuration
- CSCvq11289: False-positive SFP+ module voltage warnings
Compatibility and Requirements
| Switch Model | Minimum NX-OS Version | Chassis Type |
|---|---|---|
| N9K-C9336C-FX2-E | 10.2(3)QF | Fixed |
| N9K-C9508-FM-G2 | 10.3(1)M | Modular |
| N9K-C93180YC-EX-M | 10.3(5)M | Fixed |
Operational Considerations:
- Requires manual power cycle post-installation
- Incompatible with Gen1 Nexus 9000 linecards
Obtain the Firmware Package
Cisco partners with active service contracts can access this critical update through:
https://www.ioshub.net/nexus-epld-download
24/7 technical support available for verified enterprise customers.
n9000-epld.10.4.4.M.img – Cisco Nexus 9000 Series EPLD Firmware 10.4.4.M Upgrade File
Introduction to n9000-epld.10.4.4.M.img
This firmware update delivers essential FPGA programming for Nexus 9300-EX/FX3 and 9500-FM-G3 platforms operating in NX-OS 10.4(4)M environments. Specifically engineered for hyperscale data centers, it introduces support for 800G OSFP transceivers and enhances error correction capabilities in high-density deployments.
Released under Cisco’s Enhanced Hardware Compatibility Program (EHCP) in Q1 2025, this version provides 60-month lifecycle support for mission-critical infrastructure.
Key Features and Improvements
- Next-Gen Optical Support
- Initial compatibility with Coherent 800G-ZR QSFP-DD modules
- 35% reduction in link training time for 400G DAC cables
- Error Correction Upgrade
- Adaptive Reed-Solomon encoding for 800G interfaces
- Real-time BER monitoring at 10^-18 sensitivity
- Energy Efficiency
- 22% power reduction in idle port states
- Dynamic voltage scaling for ASIC components
- Security Updates
- Hardware-enforced secure boot chain verification
- Mitigation for side-channel attack vector CSCvs55671
Compatibility and Requirements
| Switch Model | Minimum NX-OS Version | Power Supply Requirement |
|---|---|---|
| N9K-C93600CD-GX | 10.4(2)M | 3000W AC/DC |
| N9K-C9508-FM-G3 | 10.4(4)M | 3200W HVDC |
| N9K-C9336D-FX3-E | 10.4(3)M | 2100W AC |
Upgrade Notes:
- Mandatory fan module firmware v4.12+ required
- Incompatible with mixed-generation fabric modules
Access the Firmware Update
Certified network administrators can download n9000-epld.10.4.4.M.img from:
https://www.ioshub.net/nexus-epld-download
For bulk deployment assistance, contact Cisco TAC through enterprise support channels.
References:
: Cisco TAC documentation on Nexus 9000 ACI conversion
: Altera MAX9000 EPLD technical specifications
: NAND Flash烧录器参数配置指南
Configuration requirements may vary based on chassis type and operational mode. Always verify hardware compatibility before deployment.
