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anilkumar-3187 asked anilkumar-3187 answered

Questions on route tables in Azure

Hello,

Could you please help me finding answers for below questions?

  1. Why the scope of route table is regional not global ? I meant why RT needs to be created for each region. Latency could be one reason, any other reason you can think of?

  2. If RT scope is regional by design, why there is no option to clone a RT? May be we can create ARM template and then reuse it ? Any other options in your knowledge.


Appreciate your insightful response, thank you !!




azure-virtual-networkazure-firewallazure-traffic-manager
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suvasara-MSFT answered

@anilkumar-3187, Sorry I missed to add the region limitation over there. Yes, you can associate any number of subnets to a route table if corresponding VNETs and route table are under same region.
Actually what I was asking why there isn't a easy way recreate a route table into another region --> As of today we have only few Azure services to move across regions and our team is actively working on them to extend. For now, we have only two moving options on RT (i.e.) across Subscriptions or Resource groups.


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anilkumar-3187 answered

Could anyone please respond to my questions, if possible ?

Thank you !!

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suvasara-MSFT answered anilkumar-3187 commented

@anilkumar-3187, Apologies for the inconvenience caused. From the ask it looks like you are looking for a feature update on route table where you should be able to assign a common single RT to multiple subnets at a time. This is not possible today. If there are ten subnets, then you should create 10 RT separately. Your valuable feedback has been passed to the product team and they are actively looking into it. And yes, RT's are confined to regions to minimize the latency.



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Thank you @suvasara-MSFT for your response !!

"it looks like you are looking for a feature update on route table where you should be able to assign a common single RT to multiple subnets at a time. This is not possible today. If there are ten subnets, then you should create 10 RT separately." - I think you can associate any number of subnets to a route table as long as corresponding Vnets and route table are in same region. Actually what I was asking why there isn't a easy way recreate a route table into another region. Pls correct me, if I misunderstood something.

Appreciate your response. Thank you.

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anilkumar-3187 answered

Thank you @suvasara-MSFT for taking time to help - Glad to accept your response as answer !!

StayBlessednHappy

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