can anyone explain the difference between ErGw3AZ vs Ultraperformance SKU? One of the microsoft document i referred ultraperformance SKU for NON-AZ and ERGW3AZ for AZ?

Hello @prabhudoss jayakumar Welcome to Microsoft Q&A Platform, The difference is that ErGw3AZ is zone redundant whereas Ultraperformance is not: https://github.com/MicrosoftDocs/azure-docs/issues/27933 Apart from this there are no differences in terms of performance: https://video2.skills-academy.com/en-us/azure/expressroute/expressroute-about-virtual-network-gateways#ultra-performanceergw3az I hope this helps! ---------- Please don’t forget to " Accept the answer " and “ up-vote ” wherever the information provided helps you, this can be beneficial to other community members.

what's the difference between ErGw3AZ vs Ultraperformance SKU

Accepted answer

Luis Rodriguez 6,201 Reputation points Microsoft Employee

2022-06-10T18:53:46.37+00:00

Hello @prabhudoss jayakumar

Welcome to Microsoft Q&A Platform,

The difference is that ErGw3AZ is zone redundant whereas Ultraperformance is not:

https://github.com/MicrosoftDocs/azure-docs/issues/27933

Apart from this there are no differences in terms of performance:

https://video2.skills-academy.com/en-us/azure/expressroute/expressroute-about-virtual-network-gateways#ultra-performanceergw3az

I hope this helps!

----------

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1 person found this answer helpful.
prabhudoss jayakumar 26 Reputation points

2022-06-12T03:25:49.303+00:00

Thank you. Can i downgrade the expressroute Gateway SKU from "Ultraperformance to Highperformance"?
and upgrade to Highperformance to ERGw3Az?

GitaraniSharma-MSFT 49,591 Reputation points Microsoft Employee

2022-06-13T10:30:09.723+00:00

Hello @prabhudoss jayakumar ,

You cannot downgrade the ExpressRoute Gateway SKU from "Ultraperformance to Highperformance" or upgrade from Highperformance to ERGw3Az. These are not supported. For these scenarios, you will need to delete and recreate the gateway. Recreating a gateway incurs downtime.
To see the list of supported upgrades and downgrades, please refer : https://video2.skills-academy.com/en-us/azure/expressroute/expressroute-about-virtual-network-gateways#gwsku

Regards,
Gita
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