Overview

VPN supports the pay-per-use billing mode. To quickly learn about pricing of the VPN service, see VPN Pricing Details.

S2C Classic VPN supports the pay-per-use billing mode.

The billing modes available for a region are subject to those displayed on the page.

Pay-per-use is a postpaid billing mode. You pay for the amount of time you use VPN resources or for the amount of traffic you generate. This allows you to adjust resource usage easily. You neither need to prepare for resources in advance, nor end up with excess or insufficient preset resources. This billing mode is a good option for scenarios where there are traffic bursts.

Table 1 lists the differences between the two billing modes.

**Table 1** Billing modes of S2C Classic VPN
Billing Mode	Pay-per-use (billed by bandwidth)	Pay-per-use (billed by traffic)
Payment	Postpaid Billed based on your specified EIP bandwidth and usage duration (there is no limit on how much traffic you can use.)	Postpaid Billed based on your specified EIP type and your total amount of traffic leaving the cloud
Billing Cycle	Billed by the second and settled every hour	Billed by the second and settled every hour
Billing Item	VPN connection: You need to pay for VPN connections in a selected period of time. You can purchase connections (sold in units of 1) as required. Bandwidth: You are charged for the outbound bandwidth, that is, bandwidth for traffic sent from a VPC on the cloud to a customer gateway in your on-premises data center. If the purchased bandwidth is 10 Mbit/s or less, the inbound bandwidth is limited to 10 Mbit/s. If the purchased bandwidth is greater than 10 Mbit/s, the inbound bandwidth is the same as the purchased bandwidth.	VPN connection: You need to pay for VPN connections in a selected period of time. You can purchase connection groups (sold in units of 1) as required. Traffic: You are charged for the traffic generated in every hour, with the billing unit being 1 GB. If less than 1 GB is generated, the fee is calculated based on the actually generated traffic volume. Adjusting the bandwidth does not change the traffic price per GB. Only traffic leaving the cloud is billed.
Changing the Billing Mode	The billing mode cannot be changed.
Changing the Quotas	The public network bandwidth can be increased or decreased.	The public network bandwidth can be increased or decreased. NOTE: The bandwidth is used only for rate limiting, so the bandwidth setting does not affect the fee incurred.
Application Scenarios	Recommended for scenarios with heavy or stable traffic Fluctuating demand for resources	Recommended for scenarios with light or sharply fluctuating traffic Fluctuating demand for resources