This topic describes how to associate one or more elastic IP addresses (EIPs) with an EIP bandwidth plan in the same region. This allows you to reuse the bandwidth in the EIP bandwidth plan.

Prerequisites

Make sure that your EIPs meet the following requirements:
  • The billing method of the EIPs is pay-as-you-go.
  • The EIPs are created in the same region as the EIP bandwidth plan.
  • The network of the EIPs must be the same as that of the EIP bandwidth plan.
For more information, see Apply for an EIP.

Background information

After an EIP is associated with an EIP bandwidth plan:
  • The Elastic Compute Service (ECS) instances, Server Load Balancer (SLB) instances, and NAT gateways that are associated with the EIPs share the EIP bandwidth plan.
  • The previous maximum bandwidth of the EIP becomes invalid. The maximum bandwidth of the EIP equals that of the associated EIP bandwidth plan.
  • The previous billing method of the EIP becomes invalid. The EIP functions as a public IP address. No data transfer is charged for the EIP.
  • The EIP is billed independently, regardless of whether the EIP is associated with an EIP bandwidth plan.
    • You can use an EIP free of charge if you associate it with an ECS instance that is connected to a Virtual Private Cloud (VPC) network.
    • You are charged for EIPs that are associated with NAT gateways, SLB instances, secondary elastic network interfaces (ENIs), or High-Availability Virtual IP Addresses (HAVIPs).
Note
  • Note: If you have associated an EIP with a NAT gateway, do not associate the EIP with an EIP bandwidth plan. Otherwise, transient connection errors occur.
  • You can associate up to 100 EIPs with each EIP bandwidth plan. To increase the quota, you can submit an application. For more information, see Manage quotas.

Procedure

  1. Log on to the EIP bandwidth plan console.
  2. On the top menu bar, select the region of the EIP bandwidth plan.
  3. On the Internet Shared Bandwidth page, find the target EIP bandwidth plan, and click Add IP in the Actions column.
  4. In the Add IP dialog box, specify an EIP based on the following information, and then click OK.
    • If you do not have available EIPs in the selected region, click Buy EIP and add to Bandwidth Package and enter the number of EIPs that you want to purchase.

      The system automatically creates a specified number of EIPs that are charged on a pay-as-you-go basis, and associates them with the EIP bandwidth plan. You can purchase up to 50 EIPs at a time.

    • If you have available EIPs in the region, click Select from EIP List, and select the and the EIPs that you want to associate.