If the billing method for network usage of an Elastic Compute Service (ECS) instance that uses a public IP address does not suit your business requirements, you can change the billing method.
Prerequisites
Before you change the billing method for network usage of a subscription instance
from pay-by-bandwidth to pay-by-traffic, make sure that your account has been granted
the privilege to perform configuration downgrades.
Note You can click Privileges on the Overview page in the ECS console to go to the Privileges and Quotas page and check whether
your account has been granted the privilege to perform configuration downgrades.
Background information
The billing methods available for network usage are pay-by-bandwidth and pay-by-traffic.
You can change the billing method for network usage based on your business requirements.
- Pay-by-bandwidth: You are charged based on the specified bandwidth. The actual outbound bandwidth does not exceed the specified bandwidth.
- Pay-by-traffic: You are charged based on the actual volume of traffic. You can configure
a peak bandwidth for outbound traffic to prevent unexpected high fees caused by traffic
bursts.
Notice When the pay-by-traffic billing method is used for network usage, the peak inbound and outbound bandwidth values are used as traffic limits instead of guaranteed performance specifications. If you need guaranteed bandwidths for your instances, use the pay-by-bandwidth billing method.
This topic describes how to change the billing method for network usage of an instance.
For information about how to change the bandwidth value, see the following topics:
This topic describes how to change the billing method for network usage of an instance that uses a public IP address. For more information about how to change the billing method for network usage of an instance that uses an elastic IP address (EIP), see Modify the bandwidth of an EIP.