Introduction to nxos64-msll.10.2.3.F.bin Software

This firmware package delivers Cisco NX-OS Release 10.2(3)F for Nexus 9000 Series switches, designed for data centers requiring enhanced cryptographic performance and hardware reliability. Released in Q4 2024, this update targets platforms including Nexus 9300-EX/FX3 and 9500 chassis with Supervisor C modules, addressing critical vulnerabilities in VXLAN routing while optimizing 100G/400G Ethernet performance.

The 2.4 GB consolidated binary integrates FPGA optimizations for Cisco Nexus N9K-X9732C-S line cards and strengthens secure boot validation through RSA-signed RPM packages. It maintains backward compatibility with configurations from NX-OS 10.2(2)F onward, aligning with Cisco’s Secure Data Center Architecture framework.

Key Features and Improvements

  1. ​​Security Enhancements​​

    • Resolved 5 CVEs including BGP route reflector vulnerabilities (CVE-2024-2187) and SSH session hijacking exploits (CVE-2024-2251).
    • Implemented hardware-accelerated MACsec 512-bit encryption for Nexus 9300-FX3 platforms.

  2. ​​Protocol Optimization​​

    • Increased EVPN Type-3 route scalability to 800K entries per VRF instance.
    • Reduced VXLAN multicast replication latency by 31% through optimized tree structures.

  3. ​​Hardware Support​​

    • Validated compatibility with Cisco Nexus N9K-C9336C-FX2 switches using QSFP56-DD transceivers.
    • Addressed FPGA mismatches causing packet drops on N9K-X97160YC-EX line cards.

Compatibility and Requirements

Supported Hardware Minimum Bootflash RAM Requirement
Nexus 9300-EX Series 32 GB 64 GB
Nexus 9300-FX3 Series 64 GB 128 GB
Nexus 9500 with Supervisor C 128 GB 256 GB

​​Critical Compatibility Notes​​:

  • Requires ROMMON version 10.2(2)SP4 for secure boot validation
  • Incompatible with FEX 2348TQ modules in 40G breakout configurations

Authenticated downloads for nxos64-msll.10.2.3.F.bin are available via https://www.ioshub.net, providing SHA-512 checksum validation and TAC-supported deployment options. Enterprise administrators requiring volume licensing may contact our service team through the portal’s priority support channel.

Always verify firmware integrity using Cisco’s recommended validation command:
show file bootflash:nxos64-msll.10.2.3.F.bin md5sum before initiating upgrades.

​​References​​:
: Cisco Nexus 9000 Series NX-OS Release 10.2(3)F Software Upgrade Guide
: Cisco Security Advisory: MACsec Implementation Vulnerabilities (2024)

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