Skip to Content

ANS-C01: AWS Route Analyzer Guide Troubleshooting Transit Gateway Routes

Discover how AWS Transit Gateway Network Manager’s Route Analyzer tool helps swiftly identify and resolve misconfigured routes between transit gateways across regions, ensuring seamless connectivity for multi-region operations.

Table of Contents


A company has business operations in the United States and in Europe. The company’s public applications are running on AWS and use three transit gateways. The transit gateways are located in the us-west-2, us-east-1, and eu-central-1 Regions. All the transit gateways are connected to each other in a full mesh configuration.

The company accidentally removes the route to the eu-central-1 VPCs from the us-west-2 transit gateway route table. The company also accidentally removes the route to the us-west-2 VPCs from the eu-central-1 transit gateway route table.

How can a network engineer identify the misconfiguration with the LEAST operational overhead?

A. Use the Route Analyzer feature for AWS Transit Gateway Network Manager.
B. Use the AWSSupport-SetupIPMonitoringFromVPC AWS Systems Manager Automation runbook. Push network telemetry data to Amazon CloudWatch Logs for analysis.
C. Use VPC flow logs in eu-central-1 and us-west-2 to analyze the missing routes.
D. Use Amazon VPC Traffic Mirroring in eu-central-1 or us-west-2 to take packet captures and troubleshoot the connectivity issues.


A. Use the Route Analyzer feature for AWS Transit Gateway Network Manager.


To identify the misconfiguration between transit gateways with minimal operational overhead:

Option A: Use the Route Analyzer feature for AWS Transit Gateway Network Manager. This tool offers an efficient way to analyze and troubleshoot route propagation issues between transit gateways in different regions, providing insights into missing routes and connectivity problems.

The Route Analyzer feature within AWS Transit Gateway Network Manager allows a comprehensive analysis of route configurations and helps pinpoint missing or incorrect routes between transit gateways in disparate regions. It offers an overview of route propagation, aiding in swift identification and resolution of the misconfiguration.

AWS Certified Advanced Networking – Specialty ANS-C01 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the AWS Certified Advanced Networking – Specialty ANS-C01 exam and earn AWS Certified Advanced Networking – Specialty ANS-C01 certification.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

    Ads Blocker Image Powered by Code Help Pro

    Your Support Matters...

    We run an independent site that is committed to delivering valuable content, but it comes with its challenges. Many of our readers use ad blockers, causing our advertising revenue to decline. Unlike some websites, we have not implemented paywalls to restrict access. Your support can make a significant difference. If you find this website useful and choose to support us, it would greatly secure our future. We appreciate your help. If you are currently using an ad blocker, please consider disabling it for our site. Thank you for your understanding and support.