IronByte Consulting and Training

Azure Networking – Troubleshooting & Ops

Training Info

This training focuses on the operational health of Azure networking, equipping engineers to diagnose, troubleshoot, and resolve complex connectivity and routing issues in production environments. The curriculum emphasizes a structured approach to root-cause analysis, moving beyond basic tool usage to understand the underlying platform behavior, SKU-specific performance limits, and real-world failure patterns in hybrid and cloud-native setups.

Delivery & Duration

Two primary formats are available to align with team expertise and operational requirements. Both are delivered online (live) or in-person.

  • The 1-Day Fast-Track: Optimized for operations teams needing a rapid overview of Azure-native diagnostic tools, effective routing verification, and common platform “gotchas.”
  • The Multi-Day Implementation Intensive: Includes deep-dive “break-fix” scenarios, hands-on packet capture analysis, and collaborative troubleshooting of simulated hybrid connectivity failures.
  • Modular Delivery: Options exist to split sessions into 4-hour blocks to maintain operational coverage during the training period.

Program Curriculum

Module 1: Understanding Traffic Flow in Azure

  • Azure networking platform behavior and underlying software-defined logic.
  • System routes, effective routing, and the “Longest Prefix Match” rule.
  • Inbound, outbound, and east-west traffic path verification.
  • Default vs. custom networking behavior and platform overrides.
  • Performance Throttling: Understanding how VM sizes and Gateway SKUs impact throughput.

Module 2: Diagnosing Connectivity & Routing

  • Structured approach to troubleshooting inbound and outbound flows.
  • Diagnosing VNet peering, transitive routing, and gateway bottlenecks.
  • SKU-Based Bottlenecks: Identifying limits on concurrent flows and PPS (Packets Per Second).
  • Identifying hidden NSG, UDR, and Firewall misconfigurations.
  • Troubleshooting Private Endpoint and Private Link connectivity “black holes.”

Module 3: Monitoring & Operational Visibility

  • Advanced Network Watcher capabilities: IP Flow Verify and Next Hop.
  • Connection Monitor: Usage, limitations, and alerting strategies for latency tracking.
  • Traffic Analytics and Flow Logs for security and compliance auditing.
  • Utilizing diagnostic settings and Log Analytics for deep-dive historical analysis.
  • Operational considerations for maintaining visibility in high-churn environments.

Module 4: Real-World Failure Scenarios

  • Detailed analysis of common Azure networking outage patterns and platform alerts.
  • Asymmetric Traffic Failures: Detection and remediation in NVA-heavy environments.
  • Hybrid VPN and ExpressRoute failover, performance degradation, and BGP flapping.
  • Security-related connectivity issues and rule-processing conflicts.
  • Operational best practices and “Post-Mortem” lessons learned from the field.

Key Takeaways

Participants will be equipped to:

  • Systematically Isolate Issues: Apply a proven methodology to separate network issues from application or platform-level throttling.
  • Identify Performance Caps: Recognize when an issue is a configuration error versus reaching the physical limits of a chosen SKU.
  • Validate Traffic Paths: Confidently verify real traffic paths and identify where packets are being dropped or misrouted.
  • Master Diagnostic Tools: Leverage the full suite of Azure-native monitoring and troubleshooting utilities to reduce Mean Time to Resolution (MTTR).

Next Steps

Technical leads are available to adjust the depth of these modules based on current production challenges and team requirements.

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