Transit gateway

Question

Hello,

I need to attach Transit gateway to below AWS services within MUMBAI region

> two VPC across two AZs
> two direct connect ports attached to direct connect gateway
> One IPsec VPN Tunnel

Questions

>  Will above be treated as  attachments (2 VPC + 1 Direct connect+1 IPsec )
>  Will there be data transfer charges for inter VPC traffic across AZs as I understand data transfer is now free across AZs
https://aws.amazon.com/about-aws/whats-new/2022/04/aws-data-transfer-price-reduction-privatelink-transit-gateway-client-vpn-services/
> So , will the data processing charges for transit gateway only be applicable for IN OUT traffic flowing from Direct connect towards VPC?

Answer

Hello,

Yes, It will be 4 different attachments as you mentioned.
Yes, the cross-AZ traffic would be free of charge as mentioned in the link above. 
For pricing, you will be charged, AWS Transit Gateway hourly charge & Transit Gateway data processing charge.

Refer to https://aws.amazon.com/transit-gateway/pricing/ to be exactly sure of the pricing.

Hope this answers your question. for any detailed queries regarding Pricing, please contact AWS Support.

Transit gateway

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