If the public bandwidth configurations of a pay-as-you-go instance that uses a public IP address are not suitable for your business requirements, you can modify the public bandwidth configurations.
Background information
You can perform the following operations to modify the bandwidth configurations of
pay-as-you-go instances. You can modify the bandwidth configurations of instances
multiple times, but the interval between consecutive modifications must be at least
5 minutes.
- Change the billing method for network usage. You can select Pay-By-Bandwidth or Pay-By-Traffic.
Note
- Pay-By-Bandwidth: For an instance that uses the pay-by-bandwidth billing method for network usage, you must specify an outbound public bandwidth in Mbit/s. This specified bandwidth is called a fxied bandwidth. Example: 10 Mbit/s. Compared with pay-by-traffic, pay-by-bandwidth is suitable for scenarios that require stable low-cost bandwidth.
- Pay-By-Traffic: You are charged for the actual volume of outbound traffic to the Internet. Pay-by-traffic is suitable for scenarios that have highly variable bandwidth needs, such as those which have low traffic usage with occasional traffic spikes. To prevent out-of-control fees caused by bursts in traffic, specify a peak bandwidth for the instance to limit the maximum amount of public bandwidth that an instance can have when it uses the pay-by-traffic billing method for network usage.
- Modify the fixed or peak bandwidth of an instance based on its billing method for
network usage.
Note If you change the public bandwidth of an instance in the classic network to 0 Mbit/s, the public IP address of the instance is retained. If you change the public bandwidth of an instance in a virtual private cloud (VPC) to 0 Mbit/s, the public IP address of the instance is released.
This topic describes how to modify the bandwidth configurations of pay-as-you-go instances that use public IP addresses. For more information about how to modify the bandwidth configurations of a pay-as-you-go instance that uses an elastic IP address (EIP), see Modify the bandwidth of an EIP.