How to seamlessly migrate traffic between Direct Connect gateways

This article explains a method for seamlessly migrating traffic between Direct Connect gateways while maintaining end-to-end connectivity. It describes a scenario where Goldman Sachs wanted to transfer ownership of network components between teams without disrupting business operations.

Specifically, the article covers:

• Context and background on AWS hybrid networking components like Direct Connect, Transit Gateway, and Virtual Private Gateways
• Overview of the solution approach involving setting up temporary infrastructure and rerouting traffic through it
• Detailed step-by-step walkthrough of the migration process, including diagrams illustrating each step
• Key considerations and best practices for implementing this migration approach
• Conclusion summarizing the benefits and recommending validation in non-production environments before production deployment