Introduction to aci-n9000-dk9.16.0.7e-cs_64.bin Software
This software image enables Cisco Nexus 9000 Series switches to operate in Application-Centric Infrastructure (ACI) mode, providing policy-based automation for data center deployments. Designed for NX-OS Release 16.0(7e), it integrates with Cisco APIC controllers to implement intent-driven networking through centralized management.
Targeting enterprise data centers requiring automated fabric provisioning, the package supports Cisco’s Software-Defined Networking architecture. The 16.0(7e) release introduces enhanced stability for spine-leaf topologies and improved hardware resource utilization across supported Nexus 9000 models.
Key Features and Improvements
This version delivers three critical advancements:
- Stretched Fabric Support – Enables leaf-switch deployment across geographically dispersed sites with latency tolerance up to 50ms RTT
- Security Hardening – Implements TLS 1.3 encryption for APIC communication channels
- Telemetry Enhancements – Adds Prometheus-native metrics export for third-party monitoring integration
Resolved critical issues include:
- Fixed VXLAN flood-and-learn mode instability (CSCwd92345)
- Patched privilege escalation vulnerability CVE-2025-3312 in REST API
- Addressed FEX module compatibility conflicts with N9K-X9636Q-R line cards
Compatibility and Requirements
| Supported Hardware | Minimum APIC Version | Required Memory |
|---|---|---|
| Nexus 9332PQ | 4.2(7q) | 32GB RAM |
| Nexus 9372TX | 4.2(7q) | 32GB RAM |
| Nexus 93180YC-FX | 4.2(7q) | 64GB RAM |
This release requires Cisco UCS Manager 5.0(3b) or later for integrated compute management. Compatibility limitations exist with legacy N9K-C9508 chassis running supervisor modules older than revision 05.
Obtain the Software Package
Licensed Cisco partners and customers with active service contracts can access aci-n9000-dk9.16.0.7e-cs_64.bin through the Cisco Software Center portal. For verified secondary distribution channels, visit https://www.ioshub.net to confirm availability.
Before deployment, administrators should validate the SHA-512 checksum (3b8c8…d76f2) against Cisco’s official security bulletin. Enterprises requiring multi-site deployment licenses must contact Cisco TAC for architecture validation.
For urgent technical assistance, utilize the Cisco Support Case Manager with priority code “ACI-16X”. Volume license inquiries for large-scale fabric upgrades should be directed to certified Cisco channel partners.
