Alibaba Cloud currently uses the post-paid payment option for ECS instance Internet bandwidth and collects the fees on an hourly basis according to actual traffic usage, regardless of ECS instance payment options and network types. Network bandwidth prices vary among regions. For detailed prices, refer to pricing of Elastic Cloud Server.
Alibaba Cloud charges no fees on intranet traffic usage.
The following table lists Internet bandwidth types and related information for ECS instances.
|Internet bandwidth types||Definition||Bandwidth limit||Increase bandwidth limit|
|Outbound bandwidth||The bandwidth for outbound traffic from ECS instances. For example, your ECS instances provide external access or you need to download internal resources from the ECS instances by using a FTP client or other tools.||The maximum speed is 100 Mbit/s.||Open a ticket to increase the bandwidth limit to 200 Mbit/s.|
|Inbound bandwidth||The bandwidth for inbound traffic to ECS instances. For example, you need to download resources for external networks from inside the ECS instance, or you need to upload resources to ECS instances by using a FTP client or other tools.||The maximum speed is 200 Mbit/s.||The limit cannot be increased.|
Alibaba Cloud only charges fees for outbound traffic usage. The fee is calculated on an hourly basis and the billing unit is USD/GB. To prevent high charges from sudden traffic spikes, you can set a peak value for outbound bandwidth when creating an instance
Note: Traffic arising from interaction between ECS instances on the same LAN is free of charge.
You can use different methods to purchase Internet bandwidth for different Internet access modes:
If each ECS instance needs to access the Internet with its own Internet IP address, you need to purchase Internet bandwidth when creating the instance.
How to purchase: When you are creating an ECS instance, in the Choose Network Type section, set Network Bandwidth Peak to a non-zero value.
If your ECS instance is in a VPC network and you want to use an EIP (Elastic IP address) to access the Internet, you only need to purchase the EIP service. For more information about EIP service, refer to EIP address related documentation in VPC.
If your ECS instances access the Internet through EIP, you must set Network Bandwidth Peak to 0 Mbit/s when creating the ECS instance.
You can pay for Internet bandwidth in any of the following methods:
Use a credit card or PayPal account bound to your account.
Purchase a Data Transfer Plan and deduct the traffic usage from the plan. For more information about Data Transfer Plan, refer to General Package Terms & Conditions.
Suppose that the average bandwidth of your ECS instance in an hour is 0.5 Mbit/s and the bandwidth price is 0.081 USD/GB. You need to pay the following sum for the hourly traffic:
[(0.5 * 60 * 60) /1024/8] GB * 0.081 USD/GB = 0.018 USD
Note: For calculation convenience, we use the average Internet bandwidth value for calculation and suppose there is 0.5 Mbit of outbound traffic every second from the ECS instance. For the actual outbound Internet traffic from the ECS instance, you can go to Billing Management > Usage Record to download the usage history of Elastic Compute Service (ECS) - Pay-As-You-Go.