To connect networks in different regions, you must set cross-region interconnection bandwidth after buying a bandwidth package. The total bandwidth set for all the interconnected regions of a bandwidth package cannot exceed the bandwidth of the bandwidth package. By default, 1 Kbps bandwidth is provided for connectivity test. To run normal business, you must buy a bandwidth package and set a proper interconnection bandwidth.

For example, a CEN instance is bound to a bandwidth package of 20 Mbps and  the interconnection areas are Mainland China and North America. You can set the cross-region interconnection bandwidth between US West 1 and China East 1, China East 2, China South 1, and so on. However, the total bandwidth set for all the interconnected regions cannot exceed 20  Mbps.

Set a cross-region interconnection bandwidth

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

Modify cross-region interconnection bandwidth

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

Delete a cross-region interconnection bandwidth

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the target instance.
  3. Click Region Connections, and then click Delete in the Bandwidth column of the target cross-region interconnection bandwidth.
  4. The displayed dialog box, click OK.