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Best practices and considerations to migrate from VPC Peering to AWS Transit Gateway

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This article provides a comprehensive guide for migrating from VPC Peering to AWS Transit Gateway, highlighting key considerations and best practices for network migration.

  • Discusses challenges with VPC Peering as networks scale, recommending Transit Gateway as a more scalable solution
  • Explores three migration scenarios across different network configurations
  • Emphasizes critical MTU (Maximum Transmission Unit) considerations during migration
  • Recommends using tools like iPerf3 and VPC Reachability Analyzer for testing network migrations
  • Warns about potential packet drops and connection disruptions during asymmetric routing

The key takeaway is that careful planning, understanding network topology differences, and thorough testing are essential when migrating from VPC Peering to Transit Gateway to ensure seamless network connectivity.



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