Vpc Peering Transit Gateway
Lower cost with vpc peering you only pay for data transfer charges.
Vpc peering transit gateway. The baseline costs for a site to site vpn connect are 36 00 per month. Your data is automatically encrypted and never travels over the public internet. Traffic costs are the same for vpc peering and transit gateway.
This simplifies your network and puts an end to complex peering relationships. When all vpcs connect to the transit gateway they could potentially access each other if their routing rules and security groups allow it. Transit gateway solves the complexity involved with creating and managing multiple vpc peering connections at scale.
In this architecture all vpcs connect to a central router called a transit gateway. While this makes tgw a good default for most network architectures vpc peering is still a valid choice due to the following advantages it has over tgw. The same is valid for attaching a vpc to a transit gateway.
A new vpc feature called transit gateways tgw.