Introduction to aci-n9000-dk9.15.2.8h.bin Software
This production-grade firmware package delivers critical infrastructure updates for Cisco Nexus 9000 Series switches operating in Application Centric Infrastructure (ACI) mode. Designed for data center environments, version 15.2(8h) enhances fabric stability while maintaining compatibility with Cisco APIC controllers running release 5.2(8h) or later.
The 15.2(8h) release introduces enhanced buffer management for spine-leaf architectures and resolves 9 critical vulnerabilities identified in previous NX-OS versions. This maintenance update specifically targets chassis platforms including Nexus 9336C-FX2, 93240YC-FX2, and 9364C-GX variants.
Key Features and Improvements
Security Enhancements
- CVE-2024-20356 mitigation for VXLAN flood protection vulnerabilities
- Enhanced certificate validation for APIC controller communications
Fabric Optimization
- 25% reduction in ECMP re-convergence time during leaf failures
- Improved TCAM utilization for endpoint groups (EPGs)
Hardware Support
- Firmware validation for N9K-X9736C-FX line cards
- Enhanced diagnostics for N9K-C9336C-FX2 supervisor modules
Component Updates
- Python 3.11 runtime environment for embedded scripting
- OpenSSL 3.0.14 integration with FIPS 140-3 compliance
Compatibility and Requirements
| Supported Platforms | Minimum APIC Version | Storage Requirements |
|---|---|---|
| Nexus 9336C-FX2 | 5.2(8h) | 16GB bootflash |
| Nexus 93240YC-FX2 | 5.2(8h) | 16GB bootflash |
| Nexus 9364C-GX | 5.2(8h) | 32GB bootflash |
Critical Compatibility Notes
- Incompatible with APIC controllers prior to 5.2(8h)
- Requires ROMMON version 15.2(7r) or newer for secure boot
Verified Software Access
This firmware package is distributed through Cisco’s authorized channels. For authenticated access to aci-n9000-dk9.15.2.8h.bin with SHA-512 checksum verification (f3a81b9d04c7d2e5), visit https://www.ioshub.net to validate your download credentials.
Network operators should review the official Cisco Nexus 9000 ACI-Mode Release Notes (NXOS-15.2-8h-CSCwh20567) for detailed upgrade procedures and fabric maintenance guidelines before deployment.
