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Yandex Application Load Balancer
  • Getting started
    • All guides
    • Creating Application Load Balancer infrastructure through a wizard
      • Creating an L7 load balancer
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      • Getting a log group ID of an L7 load balancer
      • Stopping and starting an L7 load balancer
      • Moving a VM to a target group in a different availability zone
        • Allowing and denying traffic transfer
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    • Viewing service resource operations
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In this article:

  • Enabling traffic transfer
  • Disabling traffic transfer
  1. Step-by-step guides
  2. L7 load balancers
  3. Availability zone management
  4. Enabling and disabling traffic transfer

Enabling and disabling traffic transfer from an availability zone

Written by
Yandex Cloud
Updated at June 11, 2025
  • Enabling traffic transfer
  • Disabling traffic transfer

If there is maintenance or issues in one of the availability zones, Yandex Cloud technicians can redirect traffic to other zones. You can test this process, to see how traffic transfer works.

Enabling traffic transferEnabling traffic transfer

CLI
API

If you do not have the Yandex Cloud CLI installed yet, install and initialize it.

By default, the CLI uses the folder specified when creating the profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also set a different folder for any specific command using the --folder-name or --folder-id parameter.

  1. See the description of the command to enable traffic transfer from an availability zone:

    yc application-load-balancer load-balancer start-zonal-shift --help
    
  2. Get a list of all L7 load balancers in the default folder:

    yc application-load-balancer load-balancer list
    

    Result:

    +----------------------+-----------------------+-------------+----------------+---------+
    |          ID          |         NAME          |  REGION ID  | LISTENER COUNT | STATUS  |
    +----------------------+-----------------------+-------------+----------------+---------+
    | ds70q425egoe******** |      my-balancer      | ru-central1 |              1 |  ACTIVE |
    | f3da23i86n2v******** |      new-balancer     | ru-central1 |              1 |  ACTIVE |
    +----------------------+-----------------------+-------------+----------------+---------+
    
  3. Enable traffic transfer:

    yc application-load-balancer load-balancer start-zonal-shift \
      <load_balancer_name_or_ID> \
      --zone <availability_zone>
    

    Result:

    id: ds70q425egoe********
    name: my-balancer
    ...
    allocation_policy:
      locations:
        - zone_id: ru-central1-b
          subnet_id: e2lptlobccu6********
        - zone_id: ru-central1-a
          subnet_id: e9bo5ir5prfi********
          zonal_shift_active: true
    ...
    

To enable traffic transfer, use the startZonalShift REST API method for the LoadBalancer resource or the LoadBalancerService/StartZonalShift gRPC API call.

Disabling traffic transferDisabling traffic transfer

CLI
API

If you do not have the Yandex Cloud CLI installed yet, install and initialize it.

By default, the CLI uses the folder specified when creating the profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also set a different folder for any specific command using the --folder-name or --folder-id parameter.

  1. See the description of the command to disable traffic transfer from an availability zone:

    yc application-load-balancer load-balancer cancel-zonal-shift --help
    
  2. Get a list of all L7 load balancers in the default folder:

    yc application-load-balancer load-balancer list
    

    Result:

    +----------------------+-----------------------+-------------+----------------+---------+
    |          ID          |         NAME          |  REGION ID  | LISTENER COUNT | STATUS  |
    +----------------------+-----------------------+-------------+----------------+---------+
    | ds70q425egoe******** |      my-balancer      | ru-central1 |              1 |  ACTIVE |
    | f3da23i86n2v******** |      new-balancer     | ru-central1 |              1 |  ACTIVE |
    +----------------------+-----------------------+-------------+----------------+---------+
    
  3. Disable traffic transfer:

    yc application-load-balancer load-balancer cancel-zonal-shift \
      <load_balancer_name_or_ID> \
      --zone <availability_zone>
    

    Result:

    id: ds70q425egoe********
    name: my-balancer
    ...
    allocation_policy:
      locations:
        - zone_id: ru-central1-b
          subnet_id: e2lptlobccu6********
        - zone_id: ru-central1-a
          subnet_id: e9bo5ir5prfi********
    ...
    

To disable traffic transfer, use the cancelZonalShift REST API method for the LoadBalancer resource or the LoadBalancerService/CancelZonalShift gRPC API call.

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Deleting an L7 load balancer
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