Final answer:
AWS provides several products and features for VPC connectivity, including Site-to-Site VPN, Transit Gateway, Direct Connect, and VPC Peering. Each offers different capabilities depending on the networking requirements, such as extending a network into the cloud or connecting multiple VPCs.
Step-by-step explanation:
Network Connectivity Between VPCs
The following AWS products and features allow for network connectivity between two or more Virtual Private Clouds (VPCs):
- Site-to-Site VPN: This service establishes a secure connection between your on-premises network and your VPCs, effectively extending your network to the cloud.
- Transit Gateway: As a network transit hub, this allows you to connect multiple VPCs and on-premises networks through a single gateway, streamlining your network architecture.
- Direct Connect: Utilizes dedicated private connectivity from your premises to AWS, which can be used to link your VPCs with a private network more consistently and with potentially greater bandwidth than internet-based connections.
- VPC Peering: This feature directly connects two VPCs so that they can share resources as if they were within the same network while maintaining separate account and network isolation.
- Gateway Endpoint: While mainly used to connect VPCs to AWS services such as S3 and DynamoDB, it is not utilized for VPC to VPC connectivity but is worth mentioning for its role within a VPC network structure.
Each of these solutions offers different capabilities based on the use case, such as extending an existing network to the cloud (Site-to-Site VPN, Direct Connect), connecting multiple VPCs (Transit Gateway, VPC Peering), or securely accessing AWS services within VPCs (Gateway Endpoint).