Accelerating AWS Network Firewall troubleshooting with AWS DevOps Agent

This article demonstrates how AWS DevOps Agent accelerates troubleshooting for AWS Network Firewall connectivity issues by correlating logs, metrics, and configuration changes.

• DevOps Agent receives CloudWatch alarms via webhook and investigates root causes by reading firewall configuration, logs, and CloudTrail API calls
• Scenario 1: Domain deny list blocking legitimate traffic—agent identifies the rule change and recommends removal or exception
• Scenario 2: Stateless rule priority misconfiguration—agent detects inverted priorities causing drops and recommends restoring correct order
• Scenario 3: Asymmetric cross-AZ routing—agent identifies route table changes breaking symmetric flow requirements and recommends restoration
• Sample CDK deployment provides reproducible test environment with status page and alarm pipeline connecting CloudWatch to DevOps Agent
• Agent presents mitigation plans for review before application, not automatic changes, enabling informed decision-making

DevOps Agent reduces Network Firewall troubleshooting from hours to minutes by automating root cause analysis across multiple data sources and investigation paths.