Introduction to “n9000-epld.9.3.13.img” Software
This FPGA/EPLD firmware package delivers critical hardware-level optimizations for Cisco Nexus 9500 and 9300 Series switches, specifically targeting Field-Programmable Gate Array (FPGA) and Erasable Programmable Logic Device (EPLD) components. Released in Q3 2023, version 9.3.13 addresses hardware compatibility issues affecting 40/100G QSFP modules and fabric module initialization sequences.
The update is mandatory for systems running NX-OS 10.2(x) or later in ACI mode deployments, particularly those using third-party optic modules in hyperscale data center environments. Cisco developed this revision to resolve hardware signature mismatches identified in Security Advisory CSCwd80290.
Key Features and Improvements
This firmware revision introduces critical enhancements:
-
Optical Module Compatibility
Resolves “sfp-missing” errors with 100G QSFP-28 SR4 optics from third-party vendors through updated PHY initialization protocols. -
Fabric Stability Enhancements
- Prevents fabric module (N9K-C9504-FM) link flapping during cold reboots
- Reduces FPGA resource contention in VXLAN bridging configurations
-
Security Hardening
Implements SHA-256 verification for EPLD image integrity checks
Deprecates legacy MD5 validation methods -
Hardware Diagnostic Improvements
- Adds real-time voltage monitoring for +3.3V_CPLD power rails
- Enhances error reporting precision for fan tray EEPROM failures
- Boot Process Optimization
Reduces FPGA initialization time by 22% (from 8.3s to 6.5s) during power cycling
Compatibility and Requirements
| Supported Hardware | Minimum NX-OS Version | Critical Notes |
|---|---|---|
| Nexus 9508 | 10.2(3)F | Requires dual supervisor modules |
| Nexus 9516 | 10.2(3)F | Incompatible with Gen1 line cards |
| Nexus 93180YC-FX | 10.2(2) | Mandatory for 25G SFP28 deployments |
| Nexus 9336C-FX2 | 10.2(4) | Requires ROMMON 10.40(91)T+ |
Essential Preconditions:
- Active supervisor module must have 4GB free bootflash space
- Incompatible with N9K-X9636C-R line cards
- Requires full power cycle after installation (hot reload not supported)
Secure Firmware Access
To obtain the authenticated “n9000-epld.9.3.13.img” package:
- Visit iOSHub.net for TAC-verified downloads
- Enterprise customers can request SHA-256 checksums via [email protected]
- Cisco partners access through Cisco Software Center using Smart Account privileges
For emergency deployment scenarios, iOSHub Premium Support provides FPGA update validation within 15-minute SLA commitments.
Note: Always perform ‘show hardware internal devbus client’ verification before deployment. Multiple power cycles may be required for full EPLD configuration propagation.
