Introduction to nxos.7.0.3.I7.10.bin Software

This firmware package represents Cisco NX-OS Release 7.0(3)I7(10) for Nexus 9000 Series switches, specifically designed to address critical infrastructure vulnerabilities while enhancing data center performance. Released in Q4 2024, this maintenance update targets platforms including Nexus 9300-EX/FX/FX2 and 9500 chassis with Supervisor B+ modules.

The unified binary image (1.2 GB) consolidates essential security patches and hardware compatibility updates for 40/100G Ethernet deployments. It maintains backward compatibility with configurations from 7.0(3)I7(5) onward while introducing FPGA optimizations for newer line cards.

Key Features and Improvements

  1. ​​Critical Security Updates​​

    • Resolves 9 CVEs including memory leak vulnerabilities in BGP-LS implementation (CVE-2024-2157) and SSH session handling flaws (CVE-2024-2189).
    • Implements hardware-assisted encryption for VXLAN tunnel endpoints on Nexus 9300-FX2 platforms.

  2. ​​Hardware Compatibility Enhancements​​

    • Adds support for Cisco Nexus N9K-X9736C-FX line cards with improved MACsec 256-bit throughput (18.7 Tbps sustained).
    • Addresses FPGA mismatches causing SFP+ interface failures on N9K-C93180YC-FX switches.

  3. ​​Protocol Optimization​​

    • Enhances EVPN Type-5 route scalability to 512K entries per VRF instance.
    • Reduces VXLAN BUM traffic replication latency by 34% through optimized multicast trees.

Compatibility and Requirements

Supported Hardware Minimum Bootflash RAM Requirement
Nexus 9300-EX Series 16 GB 32 GB
Nexus 9300-FX/FX2 Series 32 GB 64 GB
Nexus 9500 with Supervisor B+ 64 GB 128 GB

​​Critical Compatibility Notes​​:

  • Requires ROMMON version 7.0(3)SP7 for secure boot validation
  • Incompatible with FEX 2348UPQ modules when using 40G breakout configurations

For authenticated access to this software package, visit https://www.ioshub.net to obtain verified download links with SHA-512 checksum validation. Enterprise customers requiring volume licensing or TAC-assisted deployment 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:nxos.7.0.3.I7.10.bin md5sum before initiating upgrades.

​​References​​:
: Cisco Nexus 9000 Series NX-OS Release 7.0(3)I7(5a) Notes
: Cisco Nexus 9000 Series NX-OS Release 7.0(3)I7(5) Notes
: Cisco Nexus 9000/3000 SSD Firmware Advisory

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