Cost of VPC Peering

What is AWS Transit Gateway?

AWS Transit Gateway is an AWS service that helps us to establish the connectivity between Amazon Virtual Private Clouds (VPCs), on-premises networks, and remote networks. It acts as a central hub that allows communication between connected networks. It works as a virtual router to connect the AWS Virtual Private Clouds and VPN connections. Transit Gateway is scalable, which means that it can accommodate a large number of requests easily. In other words, it simplifies the networking architecture and enables efficient traffic routing between different environments....

What is VPC Peering?

Before understanding the VPC Peering let us understand what VPC is. VPC (Virtual Private Cloud) is the virtual network that is allocated to your AWS account. It remains isolated from the other virtual networks. Also, we can launch the AWS resources in our VPC....

AWS Transit Gateway vs VPC Peering: Key Differences

Feature AWS Transit Gateway VPC Peering Network Scope Centralized hub connecting multiple VPCs, on-premises networks, and remote networks Direct connection between two VPCs Hub-and-Spoke Model Follows a hub-and-spoke model, simplifying network architecture and management Creates a direct connection between two VPCs, forming a mesh network if needed Transitive Routing Supports transitive routing, enabling communication between VPCs even if not directly peered Requires manual configuration for transitive routing between more than two VPCs Cross-Region Connectivity Enables cross-region connectivity, allowing VPCs in different regions to connect Limited to VPCs within the same or different regions Management Simplification Simplifies network management, especially for organizations with multiple VPCs Suitable for simpler scenarios with fewer VPCs Integration with VPN and Direct Connect Integrates seamlessly with VPN and AWS Direct Connect for hybrid cloud setups Direct connection between VPCs without integration with VPN or Direct Connect...

Advantages of AWS Transit Gateway

It simplifies the architecture: The architecture is such that Transit Gateway acts as a central hub for connecting multiple VPCs and external networks. This centralized model simplifies network architecture and management. It allows us to implement the transitive routing: There are many cases in which the networks are not directly peered. In that case, we can implement transitive routing to communicate with different components over the network. It supports the on-demand bandwidth: We can easily expand our network by extending the bandwidth. This helps us to share large amounts of data across the network. Hence, we can easily scale our Transit Gateway configuration....

Advantages of VPC Peering

It maintains the network isolation: VPC Peering maintains separate IP address space and security groups. Hence, one VPC does not affect another so, the communication process becomes controlled. It allows us to create a mesh network: It allows the creation of a mesh network by establishing direct connections between multiple VPCs. This flexibility is useful for resource sharing and collaboration. It promotes resource sharing: It helps in reliable resource sharing and collaboration between peered VPCs, fostering a scenario where resources can be used across connected VPCs....

When should I choose AWS Transit Gateway?

Following are points that tell us about the use cases of AWS Transit Gateway:...

When should I choose VPC Peering?

Now, let us see the scenarios in which the VPC Peering is appropriate as shown below:...

Cost of AWS Transit Gateway

Since it is part of the AWS Service, it follows the cloud-based pricing plan in which the price is charged on an hourly basis. It mainly depends on the number of requests to Transit Gateway per hour and the amount of traffic that flows through AWS Transit Gateway. The pricing of the Transit Gateway depends on the geographical location. More specifically, you can visit the official website at “https://aws.amazon.com/transit-gateway/pricing/” to request the pricing....

Cost of VPC Peering

The pricing of the AWS VPC depends on the features and capabilities used by the application. Generally, the pricing depends on various resources such as NAT Gateway Hourly Charge, NAT Gateway Data Processing Charge, and Data Transfer Charge. You visit the official site at “https://aws.amazon.com/vpc/pricing/” to request a price quote....

Conclusion

In conclusion, AWS Transit Gateway and VPC Peering are powerful networking solutions catering to different use cases. Transit Gateway excels in complex architectures requiring scalable hub-and-spoke models, transitive routing, and cross-region connectivity. On the other hand, VPC Peering is suitable simpler scenarios with direct connections between specific VPC pairs, facilitating resource sharing and collaboration. After gaining complete insights into what these services are, we can easily choose the right tool for the project....

AWS Transit Gateway VS VPC Peering – FAQ’s

What Are The Alternatives For The AWS Transit Gateway?...