Safeguard Network Change

NetBrain Change Management module is a comprehensive solution for controlling a network change process. Within a single Runbook, network engineers can define a change, deploy the configuration updates, and verify the impact of the changes in a fully auditable way and adherent to existing approval processes. With intent-based automation, you can upgrade the change process with more accurate verification and safeguard against configuration drift.  

1. Map the devices you want to change and those that can be affected by the change, for example, the L3/L2/routing neighbors.
2. Define the change.
3. Verify Golden Config rules. You may define more Golden Config rules related to your change.
4. Prepare the intents you want to run before and after the change. You can add as many as intents to verify that the change does not violate the designs and that important operation status is normal. At least you may want to run the batch ping for the key applications to ensure that they are still accessible. Run these intents before the change.
5. Execute the change.
6. After the change, run intents to highlight what has changed and verify that your change is indeed successfully pushed to the devices.
7. Repeat the same intents as step 3 to verify that the change does not violate the designs and that important operation status is normal.
8. Update/add Golden Config rules to protect the future configuration drifts.

The intent to discover what is changed can be useful not just for Change Management but also for troubleshooting and network assessments. You can create a dashboard to view what is changed across the whole network: