Introduction to nxos64-msll.10.3.1.F.bin Software

The ​​nxos64-msll.10.3.1.F.bin​​ is the core NX-OS software image for Cisco Nexus 9000 Series switches operating in standalone mode, released in Q4 2024 as part of the 10.3(1)F feature train. This maintenance release focuses on enhancing VXLAN/EVPN fabric stability while introducing hardware-accelerated security services for data center deployments.

Designed for Nexus 9300-FX3, 93180YC-FX3, and 93600CD-GX platforms, this binary supports multi-protocol label switching (MPLS) Segment Routing enhancements and improves buffer management for AI/ML workloads. Cisco officially recommends this version as the transitional release for networks planning upgrades to NX-OS 10.5(x) series.

Key Features and Improvements

​​Security Enhancements​​

  • Patched 6 critical CVEs including BGP session hijacking vulnerabilities (CVE-2024-32515)
  • Added hardware-accelerated MACsec 256-bit encryption for 100G interfaces

​​Performance Optimizations​​

  • Reduced VXLAN flood suppression latency by 22% through dynamic buffer allocation
  • Improved BGP EVPN route convergence time by 35% in multi-tenant configurations

​​Protocol Support​​

  • Enhanced VXLAN Gateway scale to 10,000 endpoints per VTEP
  • Added support for BFD asynchronous mode across 8,000 sessions
  • Precision Time Protocol (PTP) accuracy improved to ±25 nanoseconds

​​Management Upgrades​​

  • RESTCONF API response time reduced by 45% via payload compression
  • Telemetry streaming capacity increased to 20K data points/second

Compatibility and Requirements

Supported Hardware Minimum NX-OS Version Virtualization Platform
Nexus 93180YC-FX3 10.2(5) VMware ESXi 7.0 U3+
Nexus 9336C-FX2 10.2(4a) KVM 5.5+
Nexus 93600CD-GX 10.2(3)

​​Critical Limitations​​

  • Requires 16GB RAM for full feature enablement
  • Incompatible with 40G QSFP+ adapters using firmware older than 3.2.1c
  • BIOS version 15.1(2) mandatory for 9336C-FX2 chassis

Obtaining the Software Package

Authorized Cisco customers can access ​​nxos64-msll.10.3.1.F.bin​​ through:

  1. Valid Smart Licensing account via Cisco Software Central
  2. TAC case submission with active service contract

Platforms like https://www.ioshub.net provide verified firmware mirrors for network engineers. Always validate SHA-512 checksums against Cisco’s published security bulletin CSCwh51378 before deployment.

This documentation aligns with Cisco NX-OS 10.3(1)F Release Notes and Nexus 9000 Series Hardware Installation Guides. For complete upgrade procedures, refer to Cisco’s official technical documentation portal.

Contact us to Get Download Link Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.