Cloud Enterprise Network (CEN) allows you to upgrade, downgrade, or renew a bandwidth plan. You can modify the bandwidth value or extend the subscription period of a bandwidth plan based on your business requirements. This topic describes the rules and operations.

## Resize a bandwidth plan

After you upgrade or downgrade a bandwidth plan, the new bandwidth value immediately takes effect. Take note of the following rules for upgrades and downgrades:

Upgrade fee = Cost of the upgraded plan - Cost of the original plan
• Cost of the upgraded plan = Hourly price (Monthly price of the upgraded plan/Number of calendar days in the month/24 hours) × Remaining subscription duration in hours
• Cost of the original plan = Hourly price (Monthly price of the original plan/Number of calendar days in the month/24 hours) × Remaining subscription duration in hours

Examples

On May 1, Alice purchased a subscription bandwidth plan of 2 Mbit/s for three months. The bandwidth plan enables network communication between regions inside the Chinese mainland. In the following examples, one month equals 30 days. The monthly price of the bandwidth plan is USD 68. In this case, the fee for a three-month subscription is USD 204.

One month later, Alice upgraded the bandwidth plan to 4 Mbit/s. The monthly price of a 4 Mbit/s bandwidth plan is USD 136. In this case, the upgrade fee is USD 136. The system calculates the upgrade fee based on the following formula:

Upgrade fee = Hourly price of the upgraded plan (USD 136/30 days/24 hours) × 2 months (60 days × 24 hours) - Hourly price of the original plan (USD 68/30 days/24 hours) × 2 months (60 days × 24 hours) = USD 136.

Note Before you downgrade a bandwidth plan, make sure that the sum of the maximum bandwidth values specified for the inter-region connections does not exceed the bandwidth value to which you want to downgrade the bandwidth plan. You can adjust the maximum bandwidth values of inter-region connections. For more information, see Modify bandwidth for inter-region connections.

### Procedure for resizing a bandwidth plan

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 of the CEN instance, click the Bandwidth Plans tab, find the bandwidth plan that you want to resize, and then click Downgrade or Upgrade in the Bandwidth column.

## Renew a bandwidth plan

### Renew a bandwidth plan in the CEN console

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 of the CEN instance, click the Bandwidth Plans tab, find the bandwidth plan that you want to renew, and then click Renew in the Actions column.
4. On the Renew page, set Duration.

### Renew a bandwidth plan in the Billing Management console

In the Billing Management console, you can select manual renewal, auto-renewal, or non-renewal for a bandwidth plan. Before you renew a bandwidth plan, take note of the following rules:
• Expired bandwidth plans support only manual renewal. Auto-renewal and non-renewal are not supported.
• A bandwidth plan that is about to expire within one day supports manual renewal and non-renewal. Auto-renewal is not supported.
1. Log on to the CEN console.
2. In the top navigation bar, choose Expenses > Renewal Management.
3. In the Instances section, Select CEN Bandwidth Plan.
4. On the Manual tab, find the bandwidth plan and select a renewal method.
• If you want to manually specify a subscription duration, click Renew, specify a subscription duration, select the service agreement check box, and then complete the payment.
• If you want to enable auto-renewal for a bandwidth plan, click Enable Auto Renewal. In the Enable Auto Renewal dialog box, select a subscription duration, and click Auto Renew.
Note
• After you enable auto-renewal, the auto-renewal feature takes effect the next day.
• After auto-renewal is enabled, the system automatically deducts fees from your account balance nine days before your bandwidth plan expires. Make sure that you have a sufficient balance in your payment account. Auto-renewal supports coupons.
• If you no longer want to renew a bandwidth plan, click Nonrenewal. In the Set as Nonrenewal message, click OK.
Note After you disable renewal for a bandwidth plan, you will receive only one notification before the bandwidth plan expires. When the subscription duration ends, the bandwidth plan automatically expires. You can change the renewal mode of the bandwidth plan before it expires.