Updating Firmware on Cisco Nexus Switches

Learn how to safely update NX-OS firmware on Cisco Nexus switches with minimal disruption.

Pre-Update Checklist

• Verify current NX-OS version
• Check compatibility matrix
• Backup running configuration
• Verify sufficient free space
• Schedule maintenance window

Step 1: Backup Configuration

copy running-config bootflash:backup-config.txt

Step 2: Download New Firmware

Transfer the new NX-OS image to the switch bootflash.

Step 3: Install Update

install all nxos bootflash:nxos.9.3.9.bin

Post-Update Verification

• Verify version with show version
• Check all interfaces are up
• Validate routing tables