Network Automation Finally Pays Off for Teams That Standardized First
Teams that cleaned up configuration drift before scripting saw change-failure rates fall by two thirds.
Network automation has long promised fewer errors and faster changes. Many teams that tried it early were disappointed: scripts broke, changes failed and engineers returned to manual work. A clearer pattern is now emerging. Teams that standardised their networks before automating them are seeing change-failure rates fall by roughly two thirds.
Why early automation struggled
Automation depends on predictability. Networks built over many years often contain dozens of hardware models, inconsistent configurations and undocumented exceptions. Scripts written for one device broke on another, and engineers lost confidence.
“We automated chaos and got faster chaos.”
Standardise first
The teams achieving strong results took a step back before writing more code.
- Reduced the number of hardware platforms and software versions
- Defined standard configuration templates for each type of site
- Removed configuration drift by comparing devices against templates
- Built a reliable source of truth for network inventory and intent
Then automate the routine
With a consistent foundation, automation becomes far more reliable. Common changes — adding a site, updating policies, rotating credentials — can be executed through tested workflows with automatic validation and rollback.
People matter too
Successful programmes invest in training network engineers in software practices such as version control, testing and code review. Automation works best when it is owned by the network team rather than handed to a separate group.
The lesson is simple but often overlooked: before automating a network, make it boring.