Warning: downloading proprietary network OS images (like Cisco NX-OS) from unofficial sources is risky and often illegal. Use only Cisco's official channels or an authorized distributor to obtain NX-OS images and ensure you hold a valid support contract or entitlement.
Would you like help finding the official download path for a specific NX-OS version using a valid Cisco account?
The file nxos.9.3.8.bin is the system software image for Cisco NX-OS Release 9.3(8), primarily used for Cisco Nexus 9000 and 3000 Series switches. Released on August 6, 2021, this version introduced key features such as ThousandEyes (TE) integration and enhanced security protocols. Release Overview Release Date: August 6, 2021.
Primary Platforms: Cisco Nexus 9000 Series (modular and fixed-port) and Nexus 3000 Series switches.
Image Type: A single .bin file required for loading the operating system.
End-of-Life: Cisco announced end-of-sale for NX-OS 9.3(x) releases on October 10, 2022, though support continues for customers with active contracts. Key Features and Enhancements nxos938bin hot download
ThousandEyes (TE) Integration: Introduced support for TE agents on Nexus 9000 Go to product viewer dialog for this item.
switches to provide network visibility. A specific Software Maintenance Upgrade (SMU)—nxos.CSCvz52812-n9k_ALL-1.0.0-9.3.8.lib32_n9000.tar—is required for this feature.
SNMP Salt Hash: Enhanced security for SNMPv3 by integrating salt with hashed passwords.
Compact Images: NX-OS 9.3(8) supports "compact" software images (e.g., nxos.9.3.8_compact.bin) to save space on devices with limited bootflash. Upgrade and Installation Guidelines
To perform a download and installation, follow these standard Cisco procedures: Would you like help finding the official download
Download: Official images must be sourced from the Cisco Software Download portal.
Space Verification: Check available bootflash space using dir bootflash:.
Transfer: Use protocols like SCP, FTP, or SFTP to copy the image to the device. Impact Check: Verify upgrade impact before proceeding: show install all impact nxos bootflash:nxos.9.3.8.bin.
Installation: Execute the upgrade using the install all command: install all nxos bootflash:nxos.9.3.8.bin. Notable Considerations
DME Support: Some platforms may require disabling the DME (Data Management Engine) feature if it is not supported on the target image to avoid installation failure. This command validates compatibility
ISSU Support: Release 9.3(8) supports In-Service Software Upgrades (ISSU), allowing for non-disruptive upgrades on supported hardware.
A company has a production Nexus 9300 switch that fails to boot because the flash is corrupted or the image was accidentally deleted. The support contract has lapsed. The engineer is under pressure to get the switch back online now. They cannot wait for a contract renewal. They turn to "hot download" as a last resort.
Once the file is on bootflash, you can stage it without reboot:
switch# install all nxos bootflash:nxos.9.3.8.bin
This command validates compatibility, copies to standby supervisor (if any), and asks for reload confirmation.
For a truly hot upgrade (minimal traffic loss):
You need a SmartNet contract covering a Nexus 9300 switch. This contract gives you access to the Cisco Software Download portal.