Azure Application Gateway Downgrade Request & 502 Bad Gateway Error

Question

I am currently using Azure Application Gateway Standard_v2, but due to cost considerations, I want to downgrade it to Standard. However, I could not find a clear option to perform this downgrade in the Azure Portal.

Is it possible to downgrade Azure Application Gateway from Standard_v2 to Standard?

Are there any risks or limitations when switching from Standard_v2 to Standard that I should be aware?

What is the best way to minimize downtime if I need to recreate the Application Gateway?

Would appreciate any guidance.

Thanks in advance!

Answer 1

Hello Sriranjan Pachika

I understand that you are looking to downgrade the application gateway from Standard V2 to Standard V1. Unfortunately, it is not possible to downgrade from Standard V2 to V1; only upgrades are supported.

Additionally, deploying a new Standard V1 application gateway is not an option as the V1 SKU is being retired. You will need to use the V2 SKU.

Application Gateway v2 is available in two SKUs:

• Basic (preview): This SKU is intended for applications with lower traffic and SLA needs, and that do not require advanced traffic management features. To register for the public preview of the Basic SKU, see Register for the preview.
• Standard_v2 SKU: This SKU is meant for production workloads and high traffic. It includes autoscaling, which automatically adjusts the number of instances based on your traffic requirements.

Check the below document for more understanding:

https://learn.microsoft.com/en-us/azure/application-gateway/overview-v2?source=recommendations#sku-types

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