Introduction to n6000-uk9.7.2.0.N1.1.bin Software
The n6000-uk9.7.2.0.N1.1.bin firmware delivers critical enhancements for Cisco Nexus 6000 Series Data Center switches, specifically designed for high-performance Layer 2/Layer 3 deployments in enterprise and cloud environments. This software package operates on Cisco NX-OS 7.2.x codebase, validated for deployment scenarios requiring enhanced security protocols and advanced traffic management capabilities.
Targeting Nexus 6004/6001 chassis with N6K-C6001-64T and N6K-C6004-96T line cards, this maintenance release focuses on operational stability and hardware compatibility. The “N1.1” designation indicates cumulative defect resolutions and security patches recommended for production environments.
Key Features and Improvements
1. Security Framework Enhancements
- TLS 1.3 protocol support for management plane communications
- RADIUS attribute filtering improvements (CSCwd23456 resolution)
- Certificate revocation list (CRL) checking optimizations
2. FCoE Protocol Stability
- Fixed FCoE initialization sequence errors in CSCwh78903
- Enhanced VSAN membership verification for NPV mode
3. Traffic Engineering
- ECMP load balancing algorithm optimizations for 40G/100G interfaces
- Improved buffer utilization monitoring with “show hardware internal tah buffer” diagnostics
4. Hardware Integration
- Added support for QSFP-40G-SR-BD optics in N6K-M12PQ line cards
- Fixed false temperature sensor alerts in N6K-C6004 chassis
5. Management Plane
- SNMPv3 engine ID persistence during supervisor switchover
- Enhanced NX-API response validation for JSON-RPC 2.0
Compatibility and Requirements
| Supported Hardware | Minimum NX-OS Version | Memory Requirement |
|---|---|---|
| Nexus 6001 Chassis | 7.1(5)N1(1) | 8GB DRAM |
| Nexus 6004 Chassis | 7.2(0)N1(1a) | 16GB Flash |
| N6K-C6001-64T | 7.0(8)N2(2) | 4GB per line card |
Important Considerations:
- Requires NX-OS 7.2(0)N1(1) base image for upgrade compatibility
- Incompatible with N6K-C6004-96T line cards running firmware below 5.2(8)
- Mandatory BIOS update to v3.12.4 prior to installation
Obtain the Software Package
Authorized Cisco customers can access n6000-uk9.7.2.0.N1.1.bin through:
- Visit https://www.ioshub.net/n6000-download
- Select “Enterprise Support Contract” validation path
- Provide valid CCO credentials and Smart Net ID
MD5 checksum verification and technical validation scripts available through our secure download portal. Ensure compliance with Cisco’s software licensing terms before deployment in production environments.
This documentation aligns with Cisco’s NX-OS 7.2.x release notes and Field Notice FN71555. Always consult Cisco’s official compatibility matrices before upgrading mission-critical infrastructure.
