upgrading the ExpressRoute gateway to a zone-redundant SKU and the public IP to a Standard SKU

Question

upgrading the ExpressRoute gateway to a zone-redundant SKU and the public IP to a Standard SKU

RAVI KUMAR 5

Hello Team,

We have gone through with shared reference documents, and we could see that during switch traffic from old gateway to new one will take up to 15 minutes .

Could you please let us know if there is any alternate option/solution where the impact will be very less ??

Migrate: Switch traffic from the old gateway to the new one. This step can take up to 15 minutes and may cause brief connectivity interruptions.

Reference

- Azure Update: Basic SKU Public IP retirement

[https://azure.microsoft.com/en-gb/updates?id=upgrade-to-standard-sku-public-ip-addresses-in-azure-by-30-september-2025-basic-sku-will-be-retired](https://azure.microsoft.com/en-gb/updates?id=upgrade-to-standard-sku-public-ip-addresses-in-azure-by-30-september-2025-basic-sku-will-be-retired"Original URL: https://azure.microsoft.com/en-gb/updates?id=upgrade-to-standard-sku-public-ip-addresses-in-azure-by-30-september-2025-basic-sku-will-be-retired. Click or tap if you trust this link.")

- About ExpressRoute Gateway Migration

[About migrating to an availability zone-enabled ExpressRoute virtual network gateway - Azure ExpressRoute | Microsoft Learn](https://learn.microsoft.com/en-us/azure/expressroute/gateway-migration"Original URL: https://learn.microsoft.com/en-us/azure/expressroute/gateway-migration. Click or tap if you trust this link.")

- ExpressRoute Gateway Migration Playbook

[https://techcommunity.microsoft.com/blog/azurenetworkingblog/expressroute-gateway-migration-playbook/4398933](https://techcommunity.microsoft.com/blog/azurenetworkingblog/expressroute-gateway-migration-playbook/4398933"Original URL: https://techcommunity.microsoft.com/blog/azurenetworkingblog/expressroute-gateway-migration-playbook/4398933. Click or tap if you trust this link.")

Regards

Ravi Kumar

Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-23T08:34:38.3433333+00:00

Hello RAVI KUMAR

Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
RAVI KUMAR 5 Reputation points

2025-06-23T09:50:03.04+00:00

Hello Ganesh ,

Thanks for the update ..! it will be helpful.!
Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-23T10:22:29.28+00:00
Hello RAVI KUMAR

Thanks for the reply!

I have converted the comment into an answer.

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

1 answer

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Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-23T08:34:38.3433333+00:00

Hello RAVI KUMAR

Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
RAVI KUMAR 5 Reputation points

2025-06-23T09:50:03.04+00:00

Hello Ganesh ,

Thanks for the update ..! it will be helpful.!
Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-23T10:22:29.28+00:00

Hello RAVI KUMAR

Thanks for the reply!

I have converted the comment into an answer.

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

Answer 1

Ganesh Patapati 8,760 Microsoft External Staff Moderator

Hello RAVI KUMAR

The simplest way to minimize user impact is to Schedule During Off-Peak Hours.

Even if the switch takes a few minutes, fewer users will notice.

Pre-Stage the New Gateway: Use the Prepare phase to fully configure and validate the new gateway before switching traffic. This includes testing routes, peering, and connectivity using a test VNet or subnet.

Automate and Script the Migration: Using PowerShell or Azure CLI can help streamline the transition and reduce human error, which can cause delays.

Communicate a Maintenance Window: Even if the actual downtime is minimal, proactively informing stakeholders of a 15-minute window helps manage expectations and reduces escalations.

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

Accepted answer

Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-23T09:55:53.4233333+00:00
Hello RAVI KUMAR

Thanks for the reply!

I have converted the comment into an answer.

Please don’t forget to close the thread by clicking "Accept the answer" and “Up-vote" wherever the information provided helps you, as this can be beneficial to other community members.
Ganesh Patapati 8,760 Reputation points Microsoft External Staff Moderator

2025-06-24T19:15:11.63+00:00
Hello RAVI KUMAR

Thanks for the reply!

I have converted the comment into an answer.

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

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upgrading the ExpressRoute gateway to a zone-redundant SKU and the public IP to a Standard SKU

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