To allow network instances in different regions to communicate with each other, you must purchase a bandwidth plan and create cross-region connections. No bandwidth plan is required if you want to connect network instances in the same region. This topic describes how to purchase a bandwidth plan.

Background information

When you purchase a bandwidth plan for a Cloud Enterprise Network (CEN) instance, you must specify the bandwidth limit and the areas to be connected. An area is a collection of regions. Each area contains one or more Alibaba Cloud regions.
The following table describes the relationship between regions and areas.
Area Region
Mainland China China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Hangzhou), China (Shanghai), and China (Chengdu)
North America US (Silicon Valley) and US (Virginia)
Asia Pacific China (Hong Kong), Singapore (Singapore), Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta), and India (Mumbai)
Europe Germany (Frankfurt) and UK (London)
Australia Australia (Sydney)

Procedure

  1. Log on to the CEN console.
  2. On the Instances page, find the CEN instance that you want to manage and click its ID.
  3. On the CEN details page, click the Bandwidth Plans tab and click Purchase Bandwidth Plan(Subscription) or Purchase Bandwidth Plan(Pay-As-You-Go).
    Note By default, you cannot purchase pay-as-you-go bandwidth plans. If you want to use pay-as-you-go bandwidth plans, submit a ticket.
  4. Set the following parameters, click Buy Now, and then complete the payment.
    Parameter Description
    CEN ID Select the CEN instance for which you want to purchase a bandwidth plan.
    Area A Select an area where you want to enable cross-region communication.
    Note You cannot change the area after the bandwidth plan is purchased.
    Area B Select the other area where you want to enable cross-region communication.
    Note You cannot change the area after the bandwidth plan is purchased.
    Billing Method Select the billing method of the bandwidth plan. Default value: By bandwidth.
    Bandwidth Select the bandwidth limit of the bandwidth plan based on your business requirements. Unit: Mbit/s.
    Name Enter a name for the bandwidth plan.
    Duration Specify a subscription duration for the bandwidth plan.

    You can select Auto-renewal to enable auto-renewal for the subscription bandwidth plan.

    Note You do not need to specify a subscription duration for a pay-as-you-go bandwidth plan.
    Note You cannot manually delete subscription bandwidth plans. To delete a subscription bandwidth plan, submit a ticket.