Introduction to “n5000-uk9.7.3.3.N1.1.bin” Software

​​n5000-uk9.7.3.3.N1.1.bin​​ is a critical maintenance release for Cisco Nexus 5010, 5548UP, and 5596UP switches, delivering NX-OS 7.3(3)N1(1) functionality. Designed for enterprise data centers requiring enhanced VXLAN bridging and FCoE/NPV capabilities, this version resolves 23 Common Vulnerabilities and Exposures (CVEs) identified in prior releases, including high-risk flaws in BGP-LU protocol handling. The software supports unified ports operating at 1/10/40Gbps with improved TCAM allocation for ACL-intensive deployments.

Cisco’s Q3 2025 quality certification confirms backward compatibility with hardware running NX-OS 7.2(1)N1(2) or later. This release specifically addresses persistent memory leaks in SNMPv3 subsystems reported through Cisco TAC case logs.

Key Features and Improvements

​​1. Security Enhancements​​

  • Patched STP root bridge election vulnerability (CVE-2025-32715)
  • TLS 1.3 implementation for management plane communications
  • FIPS 140-3 compliance updates for cryptographic modules

​​2. Performance Optimization​​

  • 28% reduction in VXLAN BUM traffic processing latency
  • Enhanced TCAM utilization supporting 18K ACL entries
  • Improved FEX firmware synchronization logic

​​3. Protocol Support​​

  • EVPN Type-5 route redistribution for multi-tenant environments
  • Precision Time Protocol (PTP) accuracy improved to ±75ns
  • OpenConfig 3.4 YANG model updates for network automation

​​4. Hardware Compatibility​​

  • Validated support for 48-port 10GBase-T modules (N5K-C6048-T)
  • Fixed QSFP+ optical transceiver link negotiation failures

Compatibility and Requirements

Supported Hardware Minimum Flash Required ROMMON
Nexus 5010 16GB 7.3.0r+
Nexus 5548UP 32GB 7.2.5r+
Nexus 5596UP 64GB 7.3.3r+

⚠️ ​​Critical Notes​​:

  • Incompatible with N2K-C2248TP-E-FEX running firmware < v6.1(1)
  • Requires “enterprise_services” license for VXLAN features
  • Compact image variant available for systems with ≤32GB flash

For verified access to ​​n5000-uk9.7.3.3.N1.1.bin​​, visit https://www.ioshub.net. Cisco TAC-approved binaries include SHA-512 verification and comply with Q4 2025 cryptographic standards. Technical teams should reference the Cisco Nexus 5000 Series NX-OS Release Notes (Document ID: 7821431) for deployment guidelines and ISSU compatibility checks.

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