​​Introduction to nxos64-cs.10.3.2.F.bin​​

The ​​nxos64-cs.10.3.2.F.bin​​ is a core software image for Cisco Nexus 9000 Series switches and virtual switches (Nexus 9000v), delivering enhanced data center networking capabilities under the NX-OS 10.3(2)F release train. This version focuses on operational stability for high-density VXLAN/EVPN deployments and provides critical security updates for enterprise networks.

​​Compatible platforms​​ include:

  • Nexus 9300-EX/FX/FX2/GX switches
  • Nexus 9500 Series with Supervisor 1Y/2Y modules
  • Cisco Nexus 9000v running on ESXi/vSphere hypervisors

While Cisco hasn’t officially disclosed its release date, this version aligns with the NX-OS 10.3.x lifecycle published in 2024 Q2 security advisories.

​​Key Features and Improvements​​

​​Security Enhancements​​

  • Mitigated TCP/IP stack vulnerabilities (CSCwd93542) affecting BGP/OSPF routing
  • Enforced stricter signature validation for EPLD firmware updates
  • Patched SNMPv3 credential leakage in specific SNMP polling scenarios

​​Protocol Optimization​​

  • 40% faster EVPN Type-2 route convergence for multi-tenant environments
  • Improved VXLAN flood suppression logic during topology changes
  • Enhanced OSPFv3 LSA retransmission handling for IPv6 networks

​​Virtual Switch Support​​

  • Added compatibility with VMware ESXi 8.0 U2 hypervisors
  • Reduced vSwitch boot latency by 18% through optimized kernel modules
  • Integrated Linux kernel 5.10 base for 9000v deployments

​​Compatibility and Requirements​​

​​Supported Hardware​​

Platform Minimum Chassis Revision Required Bootloader
Nexus 9336C-FX2 Revision 3.2 10.1(2) or newer
Nexus 9508 (Super2Y) N9K-SUP2Y 10.2(4)
Nexus 9000v (ESXi) vSphere 7.0+ N/A

​​Dependencies​​

  • Requires ​​Cisco MDS 9000 NX-OS 8.4(10)+​​ for end-to-end FCIP configurations
  • Incompatible with N9K-M12PQ line cards (use 10.2.x versions instead)
  • Mandatory CCO account with valid service contract for download

​​Obtaining the Software​​

Authorized users can access ​​nxos64-cs.10.3.2.F.bin​​ through:

  1. Cisco Software Center (https://software.cisco.com) under “Nexus 9000 Series Images”
  2. Partner portals with Smart Net Total Care (SNTC) entitlements

For third-party verification, ​​https://www.ioshub.net​​ provides:

File Name SHA-512 Checksum (Partial)
nxos64-cs.10.3.2.F.bin d4a9…7f2e

This technical overview synthesizes data from Cisco’s NX-OS 10.3.x release notes and virtual switch deployment guides. Always validate upgrade paths using Cisco’s ​​show install all impact​​ command before deployment.

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