How many flows FrontDoor can support

Question

How many flows FrontDoor can support

Matthew Jung 105

Hello.

Now I'm using AFD as load balancing proxy of my web app.

Here is my structure. 리디렉션플로우.drawio

I almost finished tests kind of domains, SSL/TLS, APIs.

But I wondering how many flows FrontDoor can support?

Our structure of load balancing is all of datas through AFD to Users. I can see all of reqeusts are going to 13.107.246.**. It's AFD IP not Origin servers. I wanna keep domain name not redirect user to specific VM's domain or IP. So that's why I built this structure. So Is this all of data flows are going through AFD? Isn't it bottle neck?

Thank you.

GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-28T11:28:15.1366667+00:00

Hello @Matthew Jung ,

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

I understand that you would like how many flows an Azure Front Door can support.

May I know what are you referring as "flows"?

Is it the number of concurrent connections on Azure Front Door or maximum requests per sec or something else?

We don't officially publish these limits.

Azure Front Door has a very high limit, so connections are not a bottleneck. But if we see too many requests coming from same customer, we throttle it, as it might be an attack.

So, if you want higher limits, then you need to create a support request for same, and the support team can engage the AFD backend team to increase these limits.

Coming to the point where you mentioned "I can see all of requests are going to 13.107.246.**."

Azure Front Door uses Anycast IPs, so the IP addresses are the same globally. Traffic routed to the Azure Front Door edge locations uses Anycast for both DNS (Domain Name System) and HTTP (Hypertext Transfer Protocol) traffic.

Anycast is a network addressing and routing methodology in which a single destination IP address is shared by devices (generally servers) in multiple locations.

Refer: https://learn.microsoft.com/en-us/azure/frontdoor/front-door-traffic-acceleration?pivots=front-door-standard-premium

https://learn.microsoft.com/en-us/azure/frontdoor/front-door-faq#can-the-anycast-ip-change-over-the-lifetime-of-my-front-door-

Also, sharing the best practices for Azure Front Door for your reference:

https://learn.microsoft.com/en-us/azure/frontdoor/best-practices

Regards,

Gita
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-29T08:42:05.8733333+00:00

@Matthew Jung , could you please provide an update on this post and share the requested details for further discussion on this issue?
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-30T14:38:34.3133333+00:00

@Matthew Jung , could you please provide an update on this post?
Matthew Jung 105 Reputation points

2023-08-31T01:56:12.7466667+00:00

Thank you for your response.

I understood about your comment, so there is no other issues about it.

So if you change your comment to answer, I’m gonna check it to finish this thread.

Thank you.
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-31T05:58:22.6566667+00:00

Thank you for the update, @Matthew Jung . I've added the answer below for visibility. 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.

Accepted answer

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Your answer

GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-28T11:28:15.1366667+00:00

Hello @Matthew Jung ,

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

I understand that you would like how many flows an Azure Front Door can support.

May I know what are you referring as "flows"?

Is it the number of concurrent connections on Azure Front Door or maximum requests per sec or something else?

We don't officially publish these limits.

Azure Front Door has a very high limit, so connections are not a bottleneck. But if we see too many requests coming from same customer, we throttle it, as it might be an attack.

So, if you want higher limits, then you need to create a support request for same, and the support team can engage the AFD backend team to increase these limits.

Coming to the point where you mentioned "I can see all of requests are going to 13.107.246.**."

Azure Front Door uses Anycast IPs, so the IP addresses are the same globally. Traffic routed to the Azure Front Door edge locations uses Anycast for both DNS (Domain Name System) and HTTP (Hypertext Transfer Protocol) traffic.

Anycast is a network addressing and routing methodology in which a single destination IP address is shared by devices (generally servers) in multiple locations.

Refer: https://learn.microsoft.com/en-us/azure/frontdoor/front-door-traffic-acceleration?pivots=front-door-standard-premium

https://learn.microsoft.com/en-us/azure/frontdoor/front-door-faq#can-the-anycast-ip-change-over-the-lifetime-of-my-front-door-

Also, sharing the best practices for Azure Front Door for your reference:

https://learn.microsoft.com/en-us/azure/frontdoor/best-practices

Regards,

Gita
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-29T08:42:05.8733333+00:00

@Matthew Jung , could you please provide an update on this post and share the requested details for further discussion on this issue?
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-30T14:38:34.3133333+00:00

@Matthew Jung , could you please provide an update on this post?
Matthew Jung 105 Reputation points

2023-08-31T01:56:12.7466667+00:00

Thank you for your response.

I understood about your comment, so there is no other issues about it.

So if you change your comment to answer, I’m gonna check it to finish this thread.

Thank you.
GitaraniSharma-MSFT 50,096 Reputation points Microsoft Employee Moderator

2023-08-31T05:58:22.6566667+00:00

Thank you for the update, @Matthew Jung . I've added the answer below for visibility. 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.

Answer 1

Hello @Matthew Jung

I understand that you would like to know how many flows an Azure Front Door can support.

May I know what are you referring as "flows"?

Is it the number of concurrent connections on Azure Front Door or maximum requests per sec or something else?

We don't officially publish these limits.

Azure Front Door has a very high limit, so connections are not a bottleneck. But if we see too many requests coming from same customer, we throttle it, as it might be an attack.

So, if you want higher limits, then you need to create a support request for same, and the support team can engage the AFD backend team to increase these limits.

Coming to the point where you mentioned "I can see all of requests are going to 13.107.246.**."

Azure Front Door uses Anycast IPs, so the IP addresses are the same globally. Traffic routed to the Azure Front Door edge locations uses Anycast for both DNS (Domain Name System) and HTTP (Hypertext Transfer Protocol) traffic.

Anycast is a network addressing and routing methodology in which a single destination IP address is shared by devices (generally servers) in multiple locations.

Refer: https://learn.microsoft.com/en-us/azure/frontdoor/front-door-traffic-acceleration?pivots=front-door-standard-premium

https://learn.microsoft.com/en-us/azure/frontdoor/front-door-faq#can-the-anycast-ip-change-over-the-lifetime-of-my-front-door-

Also, sharing the best practices for Azure Front Door for your reference:

https://learn.microsoft.com/en-us/azure/frontdoor/best-practices

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

Please "Accept the answer" if the information helped you. This will help us and others in the community as well.

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How many flows FrontDoor can support

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