To connect network instances in different regions, you must purchase a bandwidth plan and set bandwidth for cross-region connections.

Prerequisites

A bandwidth plan is purchased. For more information, see Purchase a bandwidth plan.

Background information

After you attach network instances to a Cloud Enterprise Network (CEN) instance, the system allocates 1 Kbit/s of bandwidth for cross-region connections. You can use the bandwidth to test the connectivity of IPv4 networks. To ensure that your workloads run as expected, purchase a bandwidth plan and set cross-region bandwidth.

The sum of all bandwidth values in different regions cannot exceed the bandwidth value of the bandwidth plan. For example, a CEN instance is associated with a 20 Mbit/s bandwidth plan that connects the Chinese mainland to North America. You can set bandwidth for cross-region connections between the US (Silicon Valley) region and regions in the Chinese mainland such as China (Hangzhou), China (Shanghai), and China (Shenzhen). However, the sum of these bandwidth values cannot exceed 20 Mbit/s.

Configure bandwidth for cross-region connections

  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 details page, click the Region Connections tab.
  4. Click the Region Connections tab, and then click Set Region Connection.
  5. In the Set Region Connection panel, set the following parameters and click OK.
    Parameter Description
    Bandwidth Plans Select a bandwidth plan.
    Connected Regions Select the regions that you want to connect.
    Bandwidth Enter a bandwidth value for the cross-region connection. Unit: Mbit/s.

Modify bandwidth for cross-region connections

  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 details page, click the Region Connections tab.
  4. On the Region Connections tab, find the cross-region connection that you want to manage and click Modify in the Bandwidth column.
  5. In the Set Region Connection dialog box, set a new bandwidth value for the cross-region connection and click OK.

Delete bandwidth for cross-region connections

  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 details page, click the Region Connections tab.
  4. On the Region Connections tab, find the cross-region connection that you want to delete and click Delete in the Actions column.
  5. In the Delete Region Connection message, click OK.

References