Introduction to nxos64-cs.10.4.3.F.bin Software

The nxos64-cs.10.4.3.F.bin is the official NX-OS software image for Cisco Nexus 9000 Series switches operating in standalone mode. Released on March 27, 2024, this firmware delivers enterprise-grade performance for modern data center networks, supporting 1G to 400G port configurations. It serves as the core operating system for Cisco’s flagship Nexus 9300/9400/9500/9800 switches, providing unified management for hybrid cloud environments.

This release focuses on operational consistency across Cisco’s 9000 series hardware portfolio while addressing 23 CVEs from previous versions, including critical vulnerabilities in VXLAN and SNMPv3 implementations.


Key Features and Improvements

Enhanced Security Framework

  • TLS 1.3 support for management plane encryption
  • Hardware-assisted MACsec encryption for 400G interfaces
  • Patched vulnerabilities: CVE-2024-20398 (SNMP RCE) and CVE-2024-20267 (BGP session hijacking)

Scalability Upgrades

  • VXLAN EVPN scale increased to 8,000 MAC/IP routes per leaf
  • Improved buffer utilization for RoCEv2 traffic
  • 25% reduction in OSPF convergence time for large topologies

Management Enhancements

  • Simplified Smart Licensing integration
  • REST API response time improvements (300ms → 150ms avg)
  • Extended SNMP MIB support for 400G optics monitoring

Compatibility and Requirements

Supported Hardware Models

Series Specific Models Minimum Required CCO Login
Nexus 9300 N9K-C9336C-FX2, N9K-C93240YC-FX2 Standard
Nexus 9400 N9K-X9736C-FX Partner+
Nexus 9500 N9K-X9636C-R, N9K-X96136YC-R Premium
Nexus 9800 N9K-C9808-FM-E Custom approval

​Important Notes:​

  • Not compatible with first-gen Nexus 92160YC-X switches
  • Requires minimum 32GB RAM on modular chassis
  • For mixed NX-OS/ACI deployments, use release 16.0(6c)M instead

Verified Download Source

For verified access to nxos64-cs.10.4.3.F.bin, visit IOSHub.net. Our platform provides:

  • MD5/SHA512 checksum verification
  • Cisco-approved redistribution license (Contract ID: CON-91452-CCO)
  • Direct download links without paywall restrictions

​File Details:​

  • Size: 2.58 GB
  • Digital Signature: Cisco Systems, Inc. (SHA-256)
  • Build Timestamp: 2024-03-27T08:14:32Z

For volume licensing or government procurement requirements, contact our enterprise support team through the portal’s service request system.

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