The charge for interoperability between cloud networking instances across regions typically depends on data transfer fees and network usage. Most cloud providers bill for cross-region data transfer based on the amount of data transferred (usually per GB) and may also include additional fees for network bandwidth or specific services used.
For example, if you have virtual machines (VMs) in two different regions and they exchange data, you may be charged for the outbound data from one region and the inbound data to the other. Some providers also apply inter-zone or inter-region network fees for private connections.
In Tencent Cloud, cross-region data transfer fees are applied when data moves between regions. For instance, if you transfer 100 GB of data from a VM in Beijing to a VM in Shanghai, you would be billed according to Tencent Cloud's cross-region data transfer pricing. Additionally, Tencent Cloud offers services like Cloud Virtual Machine (CVM) and Virtual Private Cloud (VPC) to facilitate secure and efficient cross-region communication. You can check the latest pricing details in the Tencent Cloud Pricing Calculator.