# Enabling a software-accelerated network

You can enable a [software-accelerated network](../../vpc/concepts/software-accelerated-network.md) when creating or updating a VM.

{% note warning %}

This feature is only available upon agreement with your account manager. To get access, submit a request to [support](https://center.yandex.cloud/support).

{% endnote %}

To enable a software-accelerated network on an existing VM:

{% list tabs group=instructions %}

- Management console {#console}

  1. In the [management console](https://console.yandex.cloud), select the folder this VM belongs to.
  1. Navigate to **Compute Cloud** and select the VM.
  1. On the top panel, click ![image](../../_assets/console-icons/stop.svg) **Stop** and confirm stopping the VM.
  1. Wait for the VM status to change to `Stopped` and click ![image](../../_assets/console-icons/pencil.svg) **Edit** on the top panel.
  1. Under **Computing resources**, select **Software network acceleration**.
  1. Click **Save changes**.
  1. On the top panel, click ![image](../../_assets/console-icons/stop.svg) **Stop** and confirm starting the VM.

- CLI {#cli}

  If you do not have the Yandex Cloud CLI yet, [install and initialize it](../../cli/quickstart.md#install).

  The folder used by default is the one specified when [creating](../../cli/operations/profile/profile-create.md) the CLI profile. To change the default folder, use the `yc config set folder-id <folder_ID>` command. You can also specify a different folder for any command using `--folder-name` or `--folder-id`. If you access a resource by its name, the search will be limited to the default folder. If you access a resource by its ID, the search will be global, i.e., through all folders based on access permissions.

  1. See the description of the CLI command for updating VM parameters:

      ```bash
      yc compute instance update --help
      ```

  1. Get a list of VMs in the default folder:

      ```bash
      yc compute instance list
      ```
      
      Result:
      ```text
      +----------------------+-----------------+---------------+---------+----------------------+
      |          ID          |       NAME      |    ZONE ID    | STATUS  |     DESCRIPTION      |
      +----------------------+-----------------+---------------+---------+----------------------+
      | fhm0b28lgfp4******** | first-instance  | ru-central1-a | RUNNING | my first vm via CLI  |
      | fhm9gk85nj7g******** | second-instance | ru-central1-a | RUNNING | my second vm via CLI |
      +----------------------+-----------------+---------------+---------+----------------------+
      ```

  1. Select the `ID` or `NAME` of the relevant VM and stop it. For example, to stop a VM named `first-instance`, run this command:

      ```bash
      yc compute instance stop first-instance
      ```

  1. Enable a software-accelerated network:

      1. Run this command:

          ```bash
          yc compute instance update first-instance \
            --network-settings type=software-accelerated
          ```

          Where `--network-settings` is the parameter that switches the network type.

          Result:

          ```text
          id: fhm0b28lgfp4********
          folder_id: b1gbnv36zqf5********
          created_at: "2023-05-24T09:28:11Z"
          name: first-instance
          zone_id: ru-central1-a
          platform_id: standard-v3
          resources:
            memory: "2147483648"
            cores: "2"
            core_fraction: "100"
          status: STOPPED
          ...
          network_settings:
            type: SOFTWARE_ACCELERATED
          placement_policy: {}
          ```

      1. Run the VM:

          ```bash
          yc compute instance start first-instance
          ```

  To disable a software-accelerated network, stop the VM and run this command:

    ```bash
    yc compute instance update first-instance \
      --network-settings type=standard
    ```

- Terraform {#tf}

  With [Terraform](https://www.terraform.io/), you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.
  
  Terraform is distributed under the [Business Source License](https://github.com/hashicorp/terraform/blob/main/LICENSE). The [Yandex Cloud provider for Terraform](https://github.com/yandex-cloud/terraform-provider-yandex) is distributed under the [MPL-2.0](https://www.mozilla.org/en-US/MPL/2.0/) license.
  
  For more information about the provider resources, see the relevant documentation on the [Terraform](https://www.terraform.io/docs/providers/yandex/index.html) website or [its mirror](../../terraform/index.md).

  If you do not have Terraform yet, [install it and configure the Yandex Cloud provider](../../tutorials/infrastructure-management/terraform-quickstart.md#install-terraform).
  
  
  To manage infrastructure using Terraform under a service account or user accounts (a Yandex account, a federated account, or a local user), [authenticate](../../terraform/authentication.md) using the appropriate method.

  To enable a software accelerated network for a VM:

  1. In the configuration file, add the `network_acceleration_type` parameter to the `yandex_compute_instance` resource description:

     ```hcl
     resource "yandex_compute_instance" "example" {
       ...
       network_acceleration_type = "software_accelerated"
       ...
     }
     ```

     Where `network_acceleration_type` is the network acceleration type. The possible values are:

     * `software_accelerated`: Software-accelerated network.
     * `standard`: Standard network. Specify this value to disable software accelerated network.

     For more information about `yandex_compute_instance` properties, see [this provider guide](../../terraform/resources/compute_instance.md).

  1. Create the resources:

     1. In the terminal, navigate to the configuration file directory.
     1. Make sure the configuration is correct using this command:
     
        ```bash
        terraform validate
        ```
     
        If the configuration is valid, you will get this message:
     
        ```bash
        Success! The configuration is valid.
        ```
     
     1. Run this command:
     
        ```bash
        terraform plan
        ```
     
        You will see a list of resources and their properties. No changes will be made at this step. Terraform will show any errors in the configuration.
     1. Apply the configuration changes:
     
        ```bash
        terraform apply
        ```
     
     1. Type `yes` and press **Enter** to confirm the changes.

- API {#api}

    Use the [update](../api-ref/Instance/update.md) REST API method for the [Instance](../api-ref/Instance/index.md) resource or the [InstanceService/Update](../api-ref/grpc/Instance/update.md) gRPC API call.

    To enable software accelerated network, in the request body, set `networkSettings.type` to `SOFTWARE_ACCELERATED`; to disable, set to `STANDARD`.

{% endlist %}