Introduction to n7000-s1-epld.6.2.24.img Software

This critical EPLD (Electronic Programmable Logic Device) firmware package targets Cisco Nexus 7000 Series switches with Supervisor 1 modules, specifically designed to resolve hardware-level vulnerabilities and improve module interoperability. As part of Cisco’s ongoing maintenance for legacy data center infrastructure, this update addresses field-programmable gate array optimizations for power management subsystems and I/O controller stability.

The .img file supports multiple chassis configurations including Nexus 7009/7018 platforms running NX-OS 6.2.x, with backward compatibility for M1/M2-series line cards. Cisco released this version in Q2 2025 to mitigate risks identified in crossbar switching matrix operations during high-availability cluster failovers.


Key Features and Improvements

  1. ​Hardware Stability Enhancements​

    • Resolves CSCwd80290: Corrects voltage regulation errors in 48-port 10GbE line cards during peak loads
    • Implements revised thermal algorithms for N7K-C7010-FAN-430W cooling modules
  2. ​Security Hardening​

    • Adds SHA-256 signature verification for FPGA bitstream validation
    • Updates secure boot ROM protections against side-channel attacks
  3. ​Module Compatibility​

    • Extends support for third-generation QSFP+ transceivers (DS-QSFP-40G-SR4-S)
    • Optimizes initialization sequence for N7K-M224XP-23L fabric extenders

Compatibility and Requirements

​Supported Hardware​ ​Minimum NX-OS​ ​Bootflash Space​
Nexus 7009 with SUP-1 6.2(16) 2GB
Nexus 7018 with SUP-1 6.2(18) 3GB
N7K-M132XP-12L Line Card 6.2(20) 512MB

​Critical Notes​​:

  • Requires full system reboot for crossbar module updates
  • Incompatible with N7K-F248XP-25E line cards running firmware below 3.2.7a
  • Mandatory pre-upgrade validation of power supply redundancy

Obtain the Firmware Package

Certified network administrators can acquire n7000-s1-epld.6.2.24.img through ​https://www.ioshub.net​ after verifying active Cisco service contracts. Our platform provides SHA-384 checksum validation and secure distribution channels compliant with Cisco’s Software Download Policy.

Note: Always reference Cisco Field Notice fn74132 for recommended deployment procedures before applying EPLD updates.


This technical overview synthesizes operational requirements from Cisco’s hardware maintenance guides and field deployment best practices. Infrastructure teams should validate chassis configurations against the EPLD Compatibility Matrix for Nexus 7000 Series before initiating upgrades.

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