You can downgrade the Internet bandwidth of subscription instances.
Prerequisites
An instance can be downgraded only when the instance meets the following conditions:
- The billing method of the instance is subscription.
- The instance is in the Running or Stopped state.
- The instance has no ongoing downgrade or renewal process.
Background information
A downgrade may result in a refund. The refund amount is the result of the following formula: Refund amount = Remaining amount of the configuration fee before the downgrade - Price of the new configurations.
You can use the bandwidth downgrade feature to perform the following operations:
- If the current bandwidth billing method is Pay-By-Bandwidth, you can:
- Lower the fixed bandwidth.
- Change the billing method to Pay-By-Traffic and set the peak bandwidth.
- If the current bandwidth billing method is Pay-By-Traffic, you can change the peak bandwidth, but you cannot change the billing method to Pay-By-Bandwidth.
Note For a VPC-type instance, when its bandwidth is lowered to 0 Mbit/s, its public IP address will be detached.
When you downgrade the bandwidth, the following limits apply:
- Whether the bandwidth of a subscription instance can be downgraded is determined by your ECS instance usage.
- You can downgrade only one subscription instance at a time.
- Each subscription instance can be downgraded a maximum of three times. Downgrade operations include instance specifications downgrades, bandwidth downgrades, and the change of the disk billing method from subscription to pay-as-you-go.
- The interval between two downgrade operations must be at least 5 minutes.
- If a VPC-type instance has an EIP bound, its configurations cannot be downgraded.