Bulk Config Push Across Devices

The Scenario

Your security team says every device needs to point to a new NTP server by end of day. You have 50 devices. Doing it manually — SSH in, paste config, verify, repeat — takes all day. A script does it in 5 minutes.

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The Prompt

Write a Python script using Netmiko that:
1. Reads devices from devices.csv (same format as before)
2. Pushes these config commands to each device:
   no ntp server 10.1.1.50
   ntp server 10.1.1.100
   ntp server 10.1.1.101
3. After pushing, runs "show ntp associations" to verify
4. Saves a log of what was pushed and the verification output per device
5. Prints a summary: success/fail count

Include a --dry-run flag that shows what WOULD be pushed without actually pushing.

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What AI Gives You

A script with:

• send_config_set() to push the commands
• send_command() to verify with show output
• A --dry-run argument using argparse
• Per-device logging to a file

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Review and Validate

• ALWAYS test on one device first — never push to all 50 without verifying the first one
• The dry-run flag is critical — always ask AI to include it
• Check the show output — does NTP actually sync? The script should verify, not just push

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Try It Yourself

Pick a simple config change (add a banner, change a description, update SNMP community). Use this pattern to push it to 3 test devices first.