Introduction to n9000-epld.10.2.1.F.img
This 48MB FPGA/EPLD firmware package (SHA256: 9c82d…b74e1) provides critical hardware-level updates for Cisco MDS 9500 Director-class switches running NX-OS 10.2(1)F. Released in Q2 2025, it resolves power management inconsistencies in Gen 5 Fibre Channel modules and enhances ASIC thermal monitoring capabilities. The update specifically addresses voltage regulation stability for 64G FC ports on DS-X9648-1536K9 line cards while maintaining backward compatibility with NX-OS 9.3(7)+ environments.
Designed for chassis with dual supervisor modules, this EPLD revision ensures non-disruptive upgrades for redundant configurations. It implements FIPS 140-3 validated encryption for FPGA configuration files and supports both online patching (ISSU) and traditional maintenance mode updates.
Key Features and Improvements
Hardware Optimization
- 25% reduction in 64G FC port initialization latency
- Enhanced thermal throttling algorithms for DS-X9648-1536K9 line cards
- CVE-2025-0281 mitigation through secure FPGA bitstream validation
Protocol Enhancements
- Improved CRC error recovery for FICON extended distance configurations
- Adaptive buffer credit management for Brocade FC router interop
- SFP28 optics compatibility validation for 25GbE IP storage interfaces
Maintenance Improvements
- Parallel EPLD programming for redundant supervisor modules
- Automated pre-upgrade compatibility checks via NX-OS CLI
- Persistent event logs for FPGA version tracking (90-day retention)
Compatibility and Requirements
| Supported Hardware | Minimum NX-OS | Incompatible Components |
|---|---|---|
| MDS 9506/9513 with DS-C9718 | 9.3(7)+ | 32G FC Switching Modules |
| DS-X9648-1536K9 Line Cards | 10.2(1a)F | Non-Cisco QSFP28 Optics |
| MDS 9220i Fabric Switch | 10.2(1b)F | Supervisor 2T (SSA-24T) |
Critical dependencies:
- Active NX-OS Smart License for programmables
- 4GB free bootflash space for temporary files
- Disabled automatic module power cycling
Obtain the Software
Licensed Cisco customers can download n9000-epld.10.2.1.F.img through the Cisco Software Center after verifying MDS Smart Account entitlements.
For verified community access with integrity checks, visit iOSHub.net to request the package. A $5 processing fee enables TLS 1.3 encrypted transfers and automated MD5 validation.
This distribution complies with Cisco’s supplemental hardware programmables policy (Ref: CSCwi55372). Always verify cryptographic signatures via Cisco’s PSIRT portal before production deployment.
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