Reconciling Configuration Differences
CloudVision enables you to reconcile differences between the designed (managed) configuration and running configuration on devices so that CVP is maintaining the full configuration of each device.
Key Terms
| Reconcilable differences | Configuration differences between the designed configuration and the running configuration, which do not conflict with the configuration in any configlets, other than the reconcile configlet. |
| Reconcile configlet | A specially marked device configlet that is system generated and used to store reconcilable differences in order for the designed configuration to match the running configuration. |
Reconciling device configuration differences does not require a task, because there is no configuration to be pushed out to the device. Reconcilable differences are only adjusted in the reconcile configlet, to match the running configuration. Because of this, there is no task pushed to change the running configuration.
When you reconcile device configuration differences, you add the reconcilable differences found in the running configuration to the reconcile configlet of the designed configuration.
For details on reconciling device configuration differences, see:
Reconciling Device Configurations Differences at the Container Level
CloudVision enables you to reconcile device configuration differences for all devices under the hierarchy of a selected container, instead of having to initiate this device by device.
For devices that have reconcilable differences, the lines or commands on the device that are not present in the designed configuration are pulled into the reconcile configlet for that device in one of two ways:
- Using the existing reconcile configlet that is specific to that device.
- Creating a new reconcile configlet that is specific to that device. This is done when there is no existing reconcile configlet specific for the device. The system automatically creates a unique name for the configlet.
A green checkmark beside the configlet indicates it as the reconcile configlet for the device.
/reconcile.png)
Complete the following steps to reconcile device configuration differences for a container:
-
Right-click the container, hover the cursor on Reconcile, and
click either
Reconcile All or
Reconcile New.
Figure 1. Device configuration reconciliation at the container level /Device%20configuration%20reconciliation%20at%20the%20container%20level.png)
The Reconcile New option reconciles only the configuration lines that exist on the device, but not in the designed configuration.
The Reconcile All option reconciles new lines and also lines that differ in designed and running configurations. This usually brings the device into compliance because the resulting designed configuration will be identical to running configuration. However, there can be cases where in spite of reconciling device configuration lines, the designed configuration may not end up identical to running configuration. In these cases, no changes are made to the reconcile configlet. Arista recommends to go through the device-level reconcile process (See Reconciling Device Configurations at the Device Level), and select the desired lines.
Note: The bell icon in the upper right corner turns yellow to indicate unread notifications. -
(Optional) To view the notification for the reconciliation, click
the bell icon. The notification list appears showing the container-level
configuration reconciliation, and any other unread notifications.
Figure 2. List of unread notifications /List%20of%20unread%20notifications.png)
Reconciling Device Configurations at the Device Level
CloudVision enables you to reconcile device configuration differences at the device level (specific, individual devices). Configuration differences at the device level occur when there are reconcilable differences in the running configuration of the device.
The Configuration Validation screen shows details of the configuration differences. When the system identifies a reconcilable difference, the Reconcile option becomes available, and the extra reconcilable configuration is listed in a text editor on the screen.
Reconcile Configlets
You use a type of configlet called a reconcile configlet to reconcile device configuration differences at the device level. A reconcile configlet is a configlet for a single specific device, and is explicitly marked as the reconcile configlet for that device. The reconcile configlet for a device contains the additional running configuration for that device.
Every time a device-level or a container-level reconcile is performed, the reconcile configlet for each device included in the reconcile action is modified to include the extra running configuration.
To reconcile device level configuration, perform the following steps:
-
Click the blue
Reconcile button to add the reconcilable configuration in the
running configuration to the reconcile configlet of the designed configuration.
Figure 3. Configuration validation screen showing device-level configuration differences /Configuration_validation_showing_device-level_config_diffs-02.png)
-
(Optional) Click the reconcile disk icon next to the configlet
name to save the reconciled configlet with the extra commands present in the
running configuration.
Figure 4. Reconcile Disk icon
Note: CVP will not execute pushing a configuration that causes CVP to lose connectivity with the device if the management interface or IP is missing in the configuration. When the task is executed, it will fail.