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AWS Solutions Architect Associate (SAA-C02)

Reachability Analyzer

  • A network diagnostics tool that troubleshoots network connectivity between two endpoints in your VPC
  • It builds a model of the network configuration, then checks the reachability based on these configurations (doesn’t send packets, just tests the configurations)
  • When the destination is:
    • Reachable - it produces hop-by-hop details of the virtual network path
    • Not reachable - it identifies the blocking components (eg. configuration issues In SGs, NACLs, Route Tables, etc.)
  • Use cases:
    • Troubleshoot connectivity issues
    • Ensure network configuration is as intended

Last updated: 2022-05-12