This topic describes how to modify the configurations of an Application Load Balancer (ALB) instance.

Change the zone where an ALB instance is deployed

You can change the zone where an ALB instance is deployed.

Note After you change the zone, the associated elastic IP addresses (EIPs) may be changed. Therefore, you may be charged an additional fee. For more information, see EIP billing.
  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.
  3. On the Instances page, find the ALB instance that you want to manage, and choose More > Modify Zone/Subnet in the Actions column.
  4. In the Modify Zone/Subnet dialog box, select a zone and a vSwitch, and then click OK.

Upgrade a basic ALB instance

You can upgrade a basic ALB instance to a standard ALB instance. However, you cannot downgrade a standard ALB instance to a basic ALB instance. For more information about the differences between basic and standard ALB instances, see Features and limits of different editions.

After a basic ALB instance is upgraded to a standard ALB instance, the billing rules for standard ALB instances are applied. For more information, see ALB billable items.

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.
  3. On the Instances page, find the ALB instance that you want to manage, and choose More > Upgrade Edition in the Actions column.
  4. In the Edition section, select Standard and click Buy Now.

Modify the maximum bandwidth value

You can associate an Internet-facing ALB instance with an EIP bandwidth plan to adjust the maximum bandwidth value of the ALB instance.
Note
  • When an ALB instance is not associated with an EIP bandwidth plan, the pay-by-data-transfer metering method is used. In this case, the maximum bandwidth value is 400 Mbit/s and bandwidth resources cannot be dynamically allocated. In addition, you cannot modify the maximum bandwidth value.
  • When an ALB instance is associated with an EIP bandwidth plan, the maximum bandwidth value of the ALB instance is determined by the maximum bandwidth value of the EIP bandwidth plan.
  • You can create an EIP bandwidth plan or modify the maximum bandwidth value of an existing EIP bandwidth plan based on your business requirements. To create an EIP bandwidth plan or modify the maximum bandwidth value of an existing EIP bandwidth plan, log on to the EIP Bandwidth Plan console.
  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.
  3. On the Instances page, find the ALB instance that you want to manage and associate the ALB instance with an EIP bandwidth plan by using one of the following methods.
    • In the EIP Bandwidth Plan column, click Associate.
    • In the Actions column, choose More > Associate with EIP Bandwidth Plan.
  4. In the Associate with EIP Bandwidth Plan dialog box, select an EIP bandwidth plan and click OK.