Implementing Network Change

Before implementing the change, it is recommended to make the following preparations:

• Set access credentials to log in to devices. See Managing Network Change Credentials for details.
• Tune devises to check their reachability.

Proceed to the following steps to implement a network change task.

1. Click the Execute node in the runbook.
2. In the Execute pane, click the  icon to define the execution options.



• One by One Automatically — push change commands to a device, then push them to the next device automatically after a brief pause.
• In Batches Automatically — push change commands to a batch of devices, then push them to the next batch automatically after a brief pause.
• One by One Manually — push change commands to a device manually, and you need to click Execute to push commands to the next device manually.
• Sleep Time between all commands — the time interval of sending CLI commands. By default, the interval is 2 seconds.
3. Check the Pre-check Hostname before Execution option.
   This option checks whether the target devices that you will push commands to are still the same as planned before sending change commands to devices. If a device hostname changes or retrieving the hostname fails, skip the device to push commands.
4. Click Execute. Read the notices and click OK when the WARNING dialog prompts.



 After Execution:




5. To roll back the config change, select the Rollback tab and click Execute to execute the rollback config.



Tip: If you select One by One Manually in step 2, click Continue to execute the change on the next device..

Note: When the execution of a device is done, an execution status icon will be displayed on the device. The following table describes the execution status in detail:

Execution status	Description
Commands Sent	All commands have been sent to devices.
Incomplete	Parts of commands have been sent to devices.
Pre-Check Failed	Failed to retrieve device hostname.
Login Failed	The system fails to remotely connect to the device using Telnet and SSH.
Invalid	Failed to execute the command successfully because the command is invalid.