Training Network Diagram & Troubleshooting Methods


Solid network documentation in the form of diagrams is tremendously valuable for teams operating and enhancing networks, and this course equips you to build the major types of network diagrams, including Ladder/Interactivity, VLAN Diagrams, Subnet Diagrams, Physical Diagrams, and Functional-Flow (Application Protocol) block diagrams. Beyond building diagrams, this course equips you with essential and advanced troubleshooting skills to help you understand and isolate problems rapidly. Graded Quizzes. Certificate Provided. 1 class session / 2 PDH.

In-Person Training

On-site training at your location


Read and Produce VLAN/Subnet Diagrams

Read and Produce Ladder Diagrams

Read Physical Diagrams

Read Functional Flow Block Diagrams

Read Dependency Graphs

Knowledge of common / recurring issues in Voice/Video networks

Consistent Troubleshooting Process


Course Content

Diagram Formats - Useful for different purposes

Intro to Five Diagram Languages and how to read them

  • Ladder Diagram
    • SIP
    • Combining SS7 and SIP
    • Generating with Wireshark
  • Functional Flow Block Diagram
    • Example with DNS
  • Subnet Diagram
    • VLANs and Subnets
    • IP Address Assignments
    • Virtualized Devices (such as those with HSRP / VRRP)
  • Functional Block Diagram
  • Physical Network Diagrams
  • Dependency Graphs

Troubleshooting Common Issues

  • Recurring Problems
    • One Way Audio
    • Audio Garbled
    • Audio Quality
    • Echo
    • Faxing
    • Inconsistent SIP Signaling Delivery
    • Busy Lamp Field / Line State / Shared Lines
  • Litt Troubleshooting Process
    • Cutting Edge Technology
    • Product Improvement via Troubleshooting Feedback
    • Preparation ion Voice & Video NEwtorks
    • Clear and Accurate Symptom Descriptions
    • Reproducing the Problem
    • Narrowing Down the Problems
    • Dependencies and Inference
    • Rapid Remediations vs Permanent Corrections
    • Be Proud of Your Achievement
    • Prepare for the Future