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Configure AWS VPC Traffic Mirroring to troubleshoot replication errors in AWS MGN and AWS DRS

Migration and Modernization Blog



This article provides a detailed guide on using AWS VPC Traffic Mirroring to troubleshoot replication errors in AWS Application Migration Service (MGN) and AWS Elastic Disaster Recovery (DRS).

  • Traffic Mirroring helps capture and analyze network traffic between source and replication servers
  • Key components include mirror source, target, filter, and session
  • Can help identify issues like SSL interception, MTU/MSS mismatches, firewall interference, and security software blocking
  • Process involves identifying replication server, setting up a mirror target instance, configuring filters and sessions
  • Uses tcpdump and Wireshark for detailed network traffic analysis

The solution provides deeper visibility into network communication, enabling faster troubleshooting of replication errors without disrupting the migration or recovery process.



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