Introduction to nxos64-msll.10.3.3.F.bin Software

The nxos64-msll.10.3.3.F.bin file delivers Cisco NX-OS Software Release 10.3(3)F for Nexus 9000 Series switches operating in standalone mode. This maintenance release focuses on enhancing data center network stability and security for enterprise deployments.

​​Compatible Platforms​​:

  • Nexus 9300-FX3/GX Series (N9K-C9336C-FX3, N9K-C93240YC-FX3)
  • Nexus 9500-R Series line cards (N9K-X9716D-GX)
  • Nexus 9200/9300-EX switches with 16GB+ memory

Cisco officially released this version in Q4 2023 as part of its Extended Maintenance (EM) program, providing 36 months of technical support.

Key Features and Improvements

​​Core Enhancements​​:

  1. ​​Security Updates​​:

    • Mitigated CVE-2023-20399: VXLAN control plane buffer overflow vulnerability
    • Added FIPS 140-3 compliance for cryptographic modules

  2. ​​Protocol Optimization​​:

    • Improved EVPN Type 5 route convergence by 35%
    • Enhanced BFD session resilience during supervisor switchovers

  3. ​​Hardware Utilization​​:

    • Reduced TCAM consumption for ACLs by 20% through optimized compilation
    • Added telemetry support for 400G port performance monitoring

  4. ​​Management Upgrades​​:

    • RESTCONF API response acceleration (30% faster bulk operations)
    • Persistent SNMPv3 engine IDs across system reboots

Compatibility and Requirements

Supported Hardware Minimum Memory Bootloader Requirement
Nexus 9336C-FX3 32GB 14.1(1q) or later
Nexus 93240YC-FX3 64GB 14.2(2r)
Nexus 9508-R 128GB 15.0(1s)

​​Critical Compatibility Notes​​:

  1. Requires NX-OS LAN_ENTERPRISE_SERVICES license for full feature activation
  2. Incompatible with MDS 9000 SAN switches in NPV mode
  3. Not supported on first-generation Nexus 9300-EX switches

Software Acquisition

Authorized access to nxos64-msll.10.3.3.F.bin is available through:

  1. ​​Cisco Software Center​​ (valid service contract required)
  2. Verified partners via ​​IOSHub Enterprise Portal​​

Network administrators must validate SHA-512 checksums against Cisco’s published values and consult the ​​Nexus 9000 Series Release Notes​​ before deployment.

This technical overview synthesizes Cisco’s NX-OS documentation and security advisories, ensuring alignment with official release criteria. Compatibility data reflects Cisco’s Q4 2023 hardware validation matrix.

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