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Overview
What is Cloud Data Transfer
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What is Cloud Data Transfer
Cloud Data Transfer (CDT)​ is a product designed to provide unified metering and billing for cloud network transmission services. CDT offers flexible and cost-effective billing options, including a free quota, pay-as-you-go, and tiered pricing, effectively helping users reduce cloud networking costs.​
Benefits​
CDT consolidates billing for multiple cloud services in scenarios where metering and billing are typically fragmented, comprehensively optimizing cloud network cost management. By offering a free quota and tiered pricing, it establishes a flexible and efficient billing system, reducing data transfer costs.​
  • Upgraded traffic benefits:​ Offers a public BGP (multi-line) free quota of 220 GB/month, allocated separately for usage within China Mainland (20GB/month) and outside China Mainland (200 GB/month), further lowering your network costs.​
  • Flexible and cost-effective billing:​ Public traffic is billed using a tiered cumulative pricing model with a pay-as-you-go basis. You pay only for what you use, and the unit price decreases as your usage increases, helping to avoid bandwidth waste.​
  • Unified governance:​ Provides unified traffic billing and tag-based cost allocation across multiple cloud services, improving collaboration efficiency and enhancing financial controllability and predictability.​​
Terms​
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Term​
Description​
Public traffic​
Data transfer between cloud resources and the public network, including outbound and inbound traffic.​ CDT employs different metering methods for public traffic across cloud products. For details, see Billing methods.​
Cross-region traffic​
Data transfer between cloud resources in different geographic regions.​​
Tiered cumulative pricing​
A multi-tier pricing model where the total cost is the sum of charges across all applicable tiers. The larger your business scale, the more you save.​
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Supported products and billing methods​
CDT offers unified billing only for VolcanoEngine network products and does not incur separate charges. Currently, CDT supports the products listed below. For more details, see Billing.​
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Supported product​
Traffic type​
Metering method​
Cross-border public acceleration of ArkClaw Enterprise​
Cross-region traffic​
Pay-by-outbound-traffic​
Elastic IP Address​
Public traffic​
Pay-by-outbound-traffic​
Bandwidth Package​
Public traffic​
Pay-by-main-traffic​
Transit Router​
Cross-region traffic​
Pay-by-outbound-traffic​
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Last updated: 2026.09.08 10:43:46