tencent cloud

All product documents
NAT Gateway
DocumentationNAT GatewayPurchase GuidePrivate NAT Gateway Operation Guide
Private NAT Gateway Operation Guide
Download PDF
Last updated: 2024-11-12 16:42:19
Private NAT Gateway Operation Guide
Last updated: 2024-11-12 16:42:19
Download PDF
Note:
Private NAT Gateway is in beta testing and currently supports Beijing, Shanghai, Guangzhou, Chengdu, Chongqing, Hong Kong (China), Singapore, Tokyo, and Virginia. If you need to use it, please submit a ticket for request.

Billing Price

The private NAT gateways incur gateway fees. Gateway fee = Instance fee + CU (Capacity Unit) fee. Both the instance fee and CU fee are postpaid and billed hourly.
Instance fee = Instance price (USD/hour) x Usage duration (hours)
CU fee = CU price (USD/unit/hour) x Number of CUs (units) x Usage duration (hours). The number of CUs is calculated based on the maximum number of CUs consumed per hour:
Number of CUs = MAX[number of CUs for hourly active connections, number of CUs for hourly new connections, number of CUs for hourly traffic processed]
Gateway Fee
Region
Unit Price (USD/unit/hour)
Transaction Unit Price for New Purchase (USD/unit/hour)
Instance fee/CU fee
Guangzhou/Beijing/Shanghai/Chengdu/Chongqing/Hong Kong (China)
0.034
0.0289
Tokyo/Singapore/Virginia
0.043
0.03655
CU is a performance capacity unit calculated based on the actual performance metrics consumed by the gateway per hour. It is used to measure various metrics involved in traffic processing by the private NAT gateway. The CU performance metrics are shown in the table below:
Metric Name
CU Coefficient
Description
Calculation Formula for the Number of CUs per Hour
Active connections (conns)
10,000
The number of active connections accommodated simultaneously. During a billing cycle, the system records the number of active connections per minute for the NAT gateway, and then divides the maximum number of active connections per minute by the CU coefficient to obtain the number of CUs for hourly active connections.
Number of CUs for hourly active connections = Maximum number of active connections/CU coefficient
New connections (cps)
1,000
The number of new connections per second. During a billing cycle, the system records the number of new connections per second for the NAT gateway, and then divides the maximum number of new connections per second by the CU coefficient to obtain the number of CUs for hourly new connections.
Number of CUs for hourly new connections = Maximum number of new connections/CU coefficient
Traffic processed (bytes)
1 GB
The quantity of the bytes processed by the NAT gateway, including outbound and inbound traffic (measured in GB). During a billing cycle, the system records the total traffic (outbound and inbound) processed by the NAT gateway, and then divides the total traffic by the CU coefficient to obtain the number of CUs for hourly processed traffic.
Number of CUs for hourly processed traffic = Total processed traffic/CU coefficient.
Note:
The following policies became effective from 00:00:00 on June 1, 2023:
Newly purchased private NAT gateways: The transaction unit prices for instance fees and CU fees on the official website are all reduced by 15%.
Existing private NAT gateways: The price remains unchanged.
This price reduction is valid for a long term. Any subsequent changes will be announced in advance.

Billing Example

For example, you purchased a private NAT gateway instance in the Guangzhou region at 07:00:00 on January 1, 2024 and deleted the instance at 07:59:59 on January 1, 2024. During the period from 07:00:00 to 07:59:59, the instance had an average of 15,000 active connections per minute and 3,000 new connections per second, and the NAT gateway processed a total of 10 GB data for requests and responses per hour. Then the fees incurred at 08:00:00 are as follows:
Instance fee = 0.034 USD/instance/hour x 1 hour x 1 instance = 0.034 USD
CU fee = 0.034 USD/unit/hour x 1 hour x 10 units = 0.34 USD
Metric Name
Calculation for the Number of CUs per Hour
Active connections
15,000/10,000=1.5
New connections
3,000/1,000=3
Traffic processed
10/1=10
MAX[number of CUs for hourly active connections, number of CUs for hourly new connections, number of CUs for hourly traffic processed]
10
Total fee = Instance fee + CU fee = 0.034 USD + 0.34 USD = 0.374 USD

Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No

Feedback

Contact Us

Contact our sales team or business advisors to help your business.

Contact Us
Technical Support

Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

Submit a Ticket
7x24 Phone Support
Hong Kong, China
+852 800 906 020 (Toll Free)
United States
+1 844 606 0804 (Toll Free)
United Kingdom
+44 808 196 4551 (Toll Free)
Canada
+1 888 605 7930 (Toll Free)
Australia
+61 1300 986 386 (Toll Free)
EdgeOne hotline
+852 300 80699
More local hotlines coming soon