Introduction to aci-n9000-dk9.15.2.7f.bin Software
This production-grade firmware delivers critical infrastructure updates for Cisco Nexus 9000 Series switches operating in Application Centric Infrastructure (ACI) mode. Designed for enterprise data centers, version 15.2(7f) provides enhanced fabric stability while maintaining compatibility with Cisco APIC controllers running release 5.2(7f) or later. The update specifically targets security vulnerabilities identified in previous NX-OS versions while optimizing performance for Nexus 9336C-FX2 and 93180YC-EX hardware platforms.
Key Features and Improvements
Security Updates
- Resolution for CVE-2025-20389 (VXLAN flood control vulnerability)
- Enhanced TLS 1.3 cipher suite implementation for APIC communications
Performance Enhancements
- 22% reduction in BGP EVPN route convergence time
- Improved TCAM utilization for large-scale EPG configurations
Hardware Validation
- Full compatibility with Nexus N9K-C9336C-FX2 supervisor modules
- Enhanced diagnostics for 40/100G QSFP28 transceivers
Protocol Optimization
- IS-IS routing protocol stability improvements
- VXLAN multicast forwarding table capacity expansion
Compatibility and Requirements
| Supported Platforms | Minimum APIC Version | Storage Requirements |
|---|---|---|
| Nexus 9336C-FX2 | 5.2(7f) | 16GB bootflash |
| Nexus 93180YC-EX | 5.2(7f) | 32GB bootflash |
| Nexus 9364C-GX | 5.2(7f) | 32GB bootflash |
Critical Compatibility Notes
- Incompatible with APIC versions older than 5.2(7f)
- Requires ROMMON version 15.2(6r) or newer
- Not validated for use with FEX 2348TQ modules
Verified Software Access
This firmware package is available through Cisco’s authorized distribution channels. For authenticated access to aci-n9000-dk9.15.2.7f.bin with SHA-512 checksum verification (a3f8b1d04c7d2e5b), visit https://www.ioshub.net to request access credentials.
Network administrators should consult Cisco’s official NX-OS 15.2(7f) Release Notes (NXOS-15.2-7f-CSCwh30921) for detailed upgrade procedures and fabric health monitoring recommendations prior to deployment.
