This topic describes how to set the cross-region bandwidth. To connect network instances deployed in different regions by using Cloud Enterprise Network (CEN), you must purchase a bandwidth plan and set the cross-region bandwidth.

Prerequisites

All network instances to be connected are attached to a CEN instance. For more information, see Step 3: Attach network instances to a CEN instance.

Background information

Connecting network instances deployed in the same region does not require a bandwidth plan and is free of charge. A bandwidth plan is required if the network instances to be connected are deployed in different regions. You must specify the interconnected areas when you purchase a bandwidth plan. Each area contains one or more regions. After you purchase a bandwidth plan, you must set the cross-region bandwidth for cross-region communication.
The following table shows 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)

Purchase a bandwidth plan

To purchase a bandwidth plan, perform the following steps:

  1. Log on to the CEN console.
  2. On the Instances page of the CEN console, 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 Pay-as-you-go bandwidth plans are available only for testing purposes. To purchase pay-as-you-go bandwidth plans,submit an application.
  4. Set the following parameters to configure the bandwidth plan, click Buy Now, and then complete the payment.
    Parameter Description
    CEN Select the CEN instance for which you want to purchase a bandwidth plan.
    Area-A Select an area where the network instance that you want to connect is deployed.
    Note You cannot modify the area after the bandwidth plan is purchased.
    Area-B Select the other area where the other network instance that you want to connect is deployed.
    Note You cannot modify the area after the bandwidth plan is purchased.
    Billing Method Displays the billing method of the bandwidth plan.
    Bandwidth Select the maximum bandwidth of the bandwidth plan based on your business requirements. Unit: Mbit/s.
    Name Enter a name for the bandwidth plan.
    Duration Specify a duration for the subscription bandwidth plan.

    SelectAuto-renewal to enable auto renewal for the subscription bandwidth plan.

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

Set the cross-region bandwidth

After you purchase a bandwidth plan, perform the following steps to set the cross-region bandwidth plan: