Networking and Load Balancer Service Engines

The Service Engines screens show service engine groups by type:

  • Networking service engines that are deployed in the region.

    The Networking category includes networking service engines such as DNS related engines and the NAT Gateway service.

  • Load Balancer service engines that are deployed in the region.

Each service engine type uses the same screen layout and has the same functional controls.

The difference is the service engine group that you select from the left navigation.

These screens can be used to review service engine entries, check version and status information, and manage the enabled state for each listed engine version.

Service Engines management

Service engines are grouped by type and opened from the group icon in the left navigation pane.

The Service Engines screens show the service engines that are deployed in the region.

This screen helps an administrator to see which service engines are present, which version each engine uses, whether a newer version is available, whether the engine is enabled, and the current engine status.

The Service Engines screens support these lifecycle operations when they are available for the current engine state:

  • Initialization

  • Reset after an initialization failure

  • Enable

  • Disable

  • Upgrade

The screen also shows the current state of each engine entry:

  • Engine

    The service engine name.

  • Version

    The current engine version.

  • Upgrade Available

    The target version that is available for upgrade. It indicates whether there is a newer version that can be applied.

  • Updated At

    The date and time when the engine version entry was last updated.

  • Enabled

    The toggle to enable or disable the service engine version.

  • Status

    The current engine state, such as Active or Disabled, indicates whether the engine version is currently in service.

  • Filter

    The list filter box in the upper-right area of the screen. Use this field to narrow the list when many engine entries are shown.

Initializing a service

When the service is not initialized, the UI shows an initialization action instead of the normal ready-state list workflow.

To initialize a service:

  1. Select Service Engines and then the relevant type: Networking or Load Balancer.

  2. Locate the initialization prompt for the service.

  3. Select Initialize.

  4. Wait for the service state to change from the initialization flow to the normal screen state.

  5. Review the screen again and confirm that engine entries are listed.

Resetting a service after a failed initialization

When the service is in an error state, the UI shows a reset action.

To initialize a service:

  1. Select Service Engines and then the relevant type: Networking or Load Balancer.

  2. Locate the failed initialization prompt for the service.

  3. Select Reset.

  4. Wait for the reset and initialization flow to complete.

#. Review the screen again and confirm that the service returns to a usable state.

Enabling an engine version

To place an engine version into service:

  1. Select Service Engines and then the relevant type: Networking or Load Balancer.

  2. Find the engine row that you want to enable.

  3. In the Enabled column, turn on the toggle.

  4. Wait for the screen to refresh.

  5. Confirm that Status shows an active state.

Disabling an engine version

To remove an engine version from service:

  1. Select Service Engines and then the relevant type: Networking or Load Balancer.

  2. Find the engine row that you want to disable.

  3. In Enabled column, turn off the toggle.

  4. Wait for the screen to refresh.

  5. Confirm that Status shows Disabled.

Upgrading an engine version

The UI provides an upgrade action only when the engine version is marked as upgradable.

To upgrade a service engine:

  1. Select Service Engines and then the relevant type: Networking or Load Balancer.

  2. Select the engine row that shows a value in Upgrade Available.

  3. From the top toolbar, select Upgrade for the engine version.

  4. In the confirmation dialog, review the engine name and version.

  5. Confirm the upgrade.

  6. Wait for the upgrade operation to finish.

  7. Review the Version, Upgrade Available, and Status columns to confirm the new state.

  • Review the Status field before making a change.

  • Review Upgrade Available before planning maintenance.

  • Use the Enabled toggle only for the specific engine row you intend to change.

  • After any change, refresh your review of Version, Updated At, and Status.

  • Use Filter to reduce the risk of changing the wrong engine when the list grows.

  • Do not treat Pool as a planning field for disabled entries, because the screen can show that field only for enabled versions.

Troubleshooting

An engine shows as Disabled

A disabled engine is not currently enabled for service.

  1. Check the Enabled toggle for the row.

  2. If needed, turn on the toggle.

  3. Review Status again after the screen refreshes.

No engine entries are listed

The service might not be initialized yet.

  1. Check whether the screen shows an initialization prompt.

  2. If it does, select Initialize.

  3. Wait for the service to finish initialization.

  4. Return to the screen and review the list again.

Initialization failed

The service can enter an error state during initialization.

  1. Check whether the screen shows a reset prompt.

  2. Select Reset.

  3. Wait for the service to return to a usable state.

  4. Review the screen again.

Upgrade is not available

The engine version might not be marked as upgradable.

  1. Review the Upgrade Available field for the row.

  2. If no upgrade value is shown, no upgrade is currently available from this screen.

  3. Continue to monitor the screen for a future upgrade entry.

Pool is empty

This can occur when the engine version is not enabled.

  1. Check the Enabled toggle for the row.

  2. Check the Status field.

  3. If the version is disabled, expect Pool to be empty on this screen.