AWS VPC peering is a networking connection between two Amazon Virtual Private Clouds (VPCs) that enables you to route traffic between them using private IP addresses. This means you can make resources in one VPC available to resources in another VPC without having to use an internet gateway, VPN connection, network address translation (NAT), or firewall proxy. With VPC peering you can share resources, such as data and applications, securely over private IP networks.
By setting up a cross-VPC connection between two the VPCs, all the associated resources within each can become accessible to each other, allowing users to manage all their resources and workloads through one interface. This reduces both cost and complexity by eliminating the need for multiple gateways or NATs between the two networks.
VPC peering provides several key benefits. First, it allows you to centrally manage your cloud resources, with all the associated tasks being handled from a single VPC. This simplifies the management of multiple VPCs, reducing the time and effort needed to administer them.
Second, it eliminates the need for a public external facing IP address, which eliminates the risk of attack from outside sources. By connecting two networks in a private manner, you get the benefit of added security and privacy.
Third, VPC peering also significantly reduces the bandwidth and latency associated with traditional networking. This makes it ideal for applications and services that require low latency and high performance.
Finally, VPC peering helps reduce costs, as there is no need to deploy and maintain separate gateways or NATs between the two networks. Additionally, the traffic sent between the two networks remains private, so you don’t have to pay the associated costs of using a public internet connection.
Overall, VPC peering is an efficient and secure way to connect two separate Amazon VPCs and make their associated resources available to each other. It provides flexibility, scalability, and improved performance compared to traditional networking models. As such, it should be considered as an option for businesses looking to maximize the efficiency of their cloud infrastructure.
