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Using VPC Peering in addition to Transit Gateway for cost optimization

0

A Customer is planning to migrate to Amazon EKS, but will be operating their clusters in parallel for a while. They will be leveraging Transit Gateway (TGW) to connect to other VPCs, where database and auxiliary services live.

The question is if it is worth it to use VPC Peering in addition to connecting the two cluster VPCs with each other instead of using the TGW for that traffic, as that might be more cost effective.

Topics
Networking & Content DeliveryContainers
Tags
Amazon VPCAmazon Elastic Kubernetes ServiceAWS Transit Gateway
Language
English
AWS-User-6336697
asked 3 years ago461 views
1 Answer
0
Accepted Answer

It's (always) a trade off between cost and complexity, so it depends.

In this case the additional cost arises just from the TGW attachment cost, which (depending on the use-case) can be marginal. Customer should do a calculation to understand the financial advantage and factor in the added complexity as well.

Then, it will be up to them to decide whether or not the financial advantage justifies the added complexity or not.

AWS
nico_aws
answered 3 years ago

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