VPC Peering Limitations & Rules
VPC Peering mechanism used in cloud for connecting multiple VPCs within same or different regions on the network. Even though it is a powerful tool, It is also comes up with some limitations. The following are the limitations of VPC Peering:
- No Transitive Peering: One of the primary limitations of VPC peering is not supporting temporary peering. Each Peering connection must be established individually to provide communication i.e., If VPC A is peered with VPC B and VPC is peered with VPC , VPC A cannot communicated directly with VPC C through VPC peering connection between A and B.
- CIDR Block Overlapping: For Establishing VPC Peering we have to ensure to maintain non-overlapping CIDR blocks to the VPCs. If CIDR overlaps then peering connection is not possible to establish.
- Limited Support For Transitive Routing: Transitive routing is not crucial for native VPC peering even though several cloud providers have developed features providing limited support on using through transit gateways or shared services.
- Cross Region Limitations: Usually VPC peering is limited to the same cloud Area. You might need to look at alternate options including VPN connection or cloud provider’s inter-region peering services, if you need to link VPCs in various areas. This limitation can impact organizations with distributed or globally scattered infrastructure.
Amazon VPC – Concept of VPC Peering
Amazon peering provides an effective way of linking Virtual Private Clouds ( VPCs ) and offers strong networking capabilities inside AWS. In this Article, the complexities of VPC peering are addressed with an effective way of explanation. This Article clarifies how to establish smooth communication across different cloud environments in AWS.