To connect network instances in different regions, you must purchase a Cloud Enterprise Network (CEN) bandwidth plan and configure cross-region bandwidth resources. If the network instances to be connected are deployed in the same region, you do not need to buy a CEN bandwidth plan.

Background information

When you purchase a CEN bandwidth plan, you must specify the bandwidth value and areas. An area consists of one or more Alibaba Cloud regions.
The following table lists 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 Manage in the Actions column.
  3. On the CEN page, click the Bandwidth Plans tab, and then click Purchase Bandwidth Plan(Subscription).
  4. Set the following parameters and click Buy Now.
    Parameter Description
    CEN ID Select the CEN instance that requires the bandwidth plan.
    Area-A Select the area where the network instances to be connected are deployed.
    Note The area cannot be modified after the bandwidth plan is created.
    Area-B Select the other area where the other network instances to be connected are deployed.
    Note The area cannot be modified after the bandwidth plan is created.
    Billing Method Displays the billing method of the bandwidth plan.
    Bandwidth Specify the bandwidth value based on your business requirements.
    Name Enter a name for the bandwidth plan.
    Duration Specify the subscription duration.
    Note To delete a bandwidth plan after you purchase it,submit a ticket.