How to calculate the Egress cost for data moving out from Azure Private Link to another subscription

Sunil Menon 20 Reputation points

Hi Team,

I have a customer who have their own Azure subscription. They have a Express Route connectivity to their on-premise environment. I need to connect to the customer's data warehouse residing in their on-premise environment. I have an Azure subscription, I would like to establish a private link connectivity with the customers subscription and connect to customers on-premise database using the private link connectivity. So the data flow will be : on-premise DB --> Express Route--> Customer Azure Private Link --> My Azure Subscription.

I would like to know whether there will be an egress cost if the data moves from on-premise DB to my Azure subscription via Private Link service.

Please help in this regards

Azure Private Link
Azure Private Link
An Azure service that provides private connectivity from a virtual network to Azure platform as a service, customer-owned, or Microsoft partner services.
435 questions
Azure ExpressRoute
Azure ExpressRoute
An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.
303 questions
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  1. Rishikesh Singh 470 Reputation points

    If you establish a private link connectivity between your Azure subscription and the customer's Azure subscription, and then use that private link to connect to the customer's on-premise database, there should not be any egress costs associated with the data flow.

    Private Link allows you to securely access services over a private network connection, bypassing the public internet. In this scenario, the data flow from the customer's on-premise database to your Azure subscription will be routed through the Express Route connection and the private link connectivity established between the two subscriptions.

    Since the data flow occurs within the Azure network infrastructure and doesn't traverse the public internet, there should not be any egress costs involved. However, it's important to note that you may incur data transfer costs related to the Express Route connection, as this connection utilizes dedicated bandwidth and has associated pricing based on factors such as the bandwidth capacity and data transfer volume.

    please accept answer if this is helpful

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  1. KapilAnanth-MSFT 31,766 Reputation points Microsoft Employee

    @Sunil Menon

    Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

    I understand that you would like to know the data transfer costs involved with using Private Link service.

    Considering the fact, there are two resources involved, they both have bandwidth costs involved.

    Kindly let us know if this helps or you need further assistance on this issue.



    Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.

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