Load balancing On Premises Layer 4 ports(smtp) with Azure VM

BUDHADITYA BANERJEE 91 Reputation points
2023-03-09T08:30:32.67+00:00

Load Balancing On Premises Layer 4 ports(smtp) with Azure VM

We do have On Prem exchange environment which we want to replicate to Azure VM using Azure Site recovery. During initial timeframe, I need to do run Exchange with Hybrid mode(Active Active On-prem with Azure VM). I am aware of Layer 7 solutions of Application Gateway or Frontdoor or Traffic Manager but unable to find any Layer 4 solution with Azure.

Please note that i dont want to use Exchange Active manager as my DNS will route the traffic to the Global Load Balancer or any other FrontEnd appropriate load balancing solution in Azure which will route the traffic to On Prem or Azure VM backend as per the load balancing strategy.

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Exchange | Hybrid management
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  1. msrini-MSFT 9,291 Reputation points Microsoft Employee
    2023-03-10T19:35:14.9133333+00:00

    Hi,

    You cannot use the On-Prem Server as backend pool of Azure Load balancer (layer 4)as of today.

    You will need to go with Application Gateway or Azure Frontdoor.

    Regards,

    Karthik Srinivas


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