Introduction to n7000-s2-dk9.7.3.5.D1.1.bin Software
The n7000-s2-dk9.7.3.5.D1(1).bin file represents the core system software for Cisco Nexus 7000 Series switches running NX-OS 7.3(5)D1(1), specifically designed for Supervisor 2/2E modules. This release enhances data center network stability while introducing critical security patches for VXLAN EVPN deployments.
As part of Cisco’s Long-Lived Maintenance (LLM) release branch, this system image supports chassis models including Nexus 7004, 7009, 7010, and 7018 platforms. The 7.3(5)D1(1) version addresses multiple Common Vulnerabilities and Exposures (CVEs) identified in previous releases while maintaining backward compatibility with existing line cards.
Key Features and Improvements
1. Enhanced Security Framework
- Patched TLS 1.2 implementation vulnerabilities (CVE-2023-20136)
- Added SFP+ module firmware validation against counterfeit hardware
2. VXLAN Performance Optimization
- 40% reduction in BGP EVPN route convergence time
- Increased multicast group scaling to 16,000 entries per VDC
3. Hardware Resource Management
- Dynamic memory allocation for FCoE traffic classes
- Improved supervisor module failover detection (300ms → 150ms)
4. Diagnostic Enhancements
- Integrated NetFlow v9 export for VXLAN traffic analysis
- Real-time buffer utilization monitoring per ASIC
Compatibility and Requirements
| Supported Hardware | Minimum NX-OS Version | Storage Requirements |
|---|---|---|
| Nexus 7004 with Sup2E | 7.3(0)DX(1) | 8GB free bootflash |
| Nexus 7009 with Sup2 | 7.2(2)D1(1) | 16GB RAM |
| Nexus 7018 with Sup2E | 7.3(0)DX(1) | Dual supervisor modules |
| M2-Series Line Cards | 6.1(1) | NX-OS License Advanced |
This release requires simultaneous upgrade of kickstart images (n7000-s2-kickstart.7.3.5.D1.1.bin) for proper functionality. Third-party VNFs must be upgraded to versions certified for NX-OS 7.3(5) compatibility.
Obtain the System Software
Network administrators requiring this enterprise-grade NX-OS release can access the verified n7000-s2-dk9.7.3.5.D1.1.bin package through https://www.ioshub.net. Our repository maintains original SHA-512 checksums matching Cisco’s official security bulletin for integrity validation.
Prior to deployment, confirm Smart Licensing entitlements through Cisco Software Central. Production environments must follow Cisco’s recommended dual-supervisor upgrade methodology outlined in the NX-OS Software Upgrade and Downgrade Guide. Contact our support team for bulk download arrangements or version compatibility verification.
