To connect networks in different regions, you must set cross-region connection bandwidth after buying a bandwidth package. The total bandwidth value set for all the connected regions of a bandwidth package cannot exceed the bandwidth value of the bandwidth package. By default, 1 Kbit/s bandwidth is provided for connected regions so that you can perform connectivity tests. To run normal business, you must buy a bandwidth package and set a proper connection bandwidth.

For example, you bought a bandwidth package of 20 Mbit/s for a CEN instance and the interconnection areas are Mainland China and North America. You can set a cross-region connection bandwidth between US (Virginia) and China (Hangzhou), China (Shanghai), China (Shenzhen), or other regions. However, the total bandwidth value set for all the interconnected regions cannot exceed 20 Mbit/s.

Set a cross-region connection bandwidth

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the target CEN instance.
  3. Click the Region Connections tab, and then click Set Region Connection.
  4. Configure the cross-region connection bandwidth, and then click OK.
    Configuration Description
    Bandwidth Package Select the bandwidth package attached to the CEN instance.
    Connected Regions Select the regions to connect.
    Bandwidth Enter the required bandwidth.

Modify a cross-region connection bandwidth

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the target instance.
  3. Click the Region Connections tab, find the target cross-region connection, and then click Modify in the Bandwidth column.
  4. In the displayed dialog box, enter a new bandwidth value, and click OK.

Delete a cross-region connection bandwidth

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the target instance.
  3. Click the Region Connections tab, find the target cross-region connection, and then click Delete in the Actions column.
  4. In the displayed dialog box, click OK.