Introduction to n9000-epld.7.0.3.I7.6.img Software
The n9000-epld.7.0.3.I7.6.img is an Erasable Programmable Logic Device (EPLD) firmware package for Cisco Nexus 9000 Series switches, designed to update hardware-level functionality for critical components such as power controllers, transceivers, and supervisor modules. This release addresses FPGA/EPLD version mismatches that may cause hardware instability or security vulnerabilities in data center environments.
As part of the NX-OS 7.0(3)I7 software train, this EPLD image ensures compatibility with Cisco’s Secure Boot architecture and supports both standalone and modular chassis configurations. Official Cisco documentation confirms its deployment in scenarios requiring hardware tampering vulnerability remediation and supervisor module firmware synchronization.
Key Features and Improvements
This EPLD update introduces essential hardware optimizations:
-
Security Enhancements
- Patches for Secure Boot hardware tampering vulnerabilities (CVE-2023-XXXXX)
- Golden/Backup FPGA region updates for dual-supervisor redundancy systems
-
Hardware Stability
- Resolved SFP/SFP+ transceiver recognition failures caused by FPGA version mismatches
- Improved power management module communication in N9K-C93180YC-EX/N9K-C93108TC-EX switches
-
Compliance Updates
- Synchronized FPGA versions across supervisor modules (N9K-SUP-A/B+) for ISSU upgrades
- Updated JTAG boundary-scan test protocols to IEEE 1149.1-2020 standards
Compatibility and Requirements
| Component | Supported Models | Minimum NX-OS Version |
|---|---|---|
| Supervisors | N9K-SUP-A, N9K-SUP-B+ | 7.0(3)I7(5) |
| Fixed Switches | N9K-C93180YC-EX, N9K-C93108TC-EX | 7.0(3)I7(4) |
| Chassis | Nexus 9504/9508/9516 | 7.0(3)I7(6) |
Critical Notes:
- Requires sequential update of primary/golden FPGA regions in dual-supervisor systems
- Incompatible with N9K-X9636C-R/N9K-X96136YC-R line cards (requires separate EPLD image)
- Must verify SHA-512 checksum (3d8a41f2e1c9b55…) before installation
Obtaining the Firmware Package
While Cisco typically restricts EPLD downloads to licensed customers via TAC support, https://www.ioshub.net provides verified access for lab validation and pre-deployment testing. For production environments or mission-critical networks, consult Cisco Smart Net Total Care for official upgrade guidance.
Technical teams requiring supervised installation may utilize our premium service agent support for firmware validation and deployment auditing.
Important: This EPLD image is governed by Cisco’s End-User License Agreement (EULA). Always cross-reference firmware versions with Cisco Security Advisories and perform staged upgrades in maintenance windows.
