Course Outline
- Introduction to network troubleshooting
- Defining network troubleshooting
- Essential troubleshooting tools
- Established troubleshooting methodologies
- Overview of Wireshark
- How Wireshark functions
- Capturing packets,
- Understanding capture and display filters
- Configuring Global Preferences
- Navigation and colorization techniques
- Utilizing time values and summaries
- Examining basic trace file statistics
- Saving, exporting, and printing data
- Capture and display filters
- Capture filters – fundamentals and filter syntax
- Display filters – fundamentals and filter syntax
- Recommended useful filters
- Lab exercises and case studies
- Utilizing time values and summaries
- Configuring default time column settings and precision
- Analyzing time intervals between packets
- Setting a time reference and viewing capture timestamps
- Troubleshooting timing-related issues
- Lab exercises and case studies
- Leveraging Statistics Tools
- Creating I/O graphs
- Generating TCP Time-Sequence graphs
- Analyzing flow graphs
- Evaluating service response times
- Creating Round-Trip-Time graphs
- Analyzing TCP/IP flows
- Analyzing application flows
- Lab exercises and case studies
- Fundamentals of the Expert System
- Normal versus abnormal network communications
- Root causes of performance issues
- Packet loss, excessively long ACKs, and retransmissions
- Lab and case studies
- Bandwidth issues
- Measuring bandwidth
- Calculating user/flow throughput
- Calculating application throughput
- Addressing bandwidth and throughput problems
- Lab exercises and case studies
- Latency issues
- Key points in calculating latency
- Plotting periods of high latency
- Utilizing free latency calculators
- Applying the frame.time_delta filter
- Lab exercises and case studies
- Packet loss and retransmissions
- Packet loss mechanisms and recovery in UDP and TCP
- Scenarios involving previously lost segments and out-of-order events
- Duplicate ACKs and Fast Retransmissions
- TCP retransmissions
- Zero window conditions, window changes, and other window-related issues
- Lab exercises and case studies
Requirements
Participants should possess fundamental networking knowledge and an understanding of the TCP/IP protocol stack. Attendees must bring laptops pre-installed with Wireshark software, which is available for free download at www.wireshark.org.
Custom Corporate Training
Training solutions designed exclusively for businesses.
- Customized Content: We adapt the syllabus and practical exercises to the real goals and needs of your project.
- Flexible Schedule: Dates and times adapted to your team's agenda.
- Format: Online (live), In-company (at your offices), or Hybrid.
Price per private group, online live training, starting from 4800 € + VAT*
Contact us for an exact quote and to hear our latest promotions
Testimonials (7)
practical case studies
Kamil - P4 Sp. z o.o.
Course - Basic Network Troubleshooting Using Wireshark
Knowlage and patience
Mariusz
Course - Basic Network Troubleshooting Using Wireshark
...and everything :) This was probably the best training I was a part of.
Maciej
Course - Basic Network Troubleshooting Using Wireshark
It is clear Nima is comfortable using Wireshark. He showed us the basic features and tools available to use.
Jonathan - Utility
Course - Basic Network Troubleshooting Using Wireshark
Trainer very engaging and knowledgeable
Effendy Bin Ahmad sata - SBS transit
Course - Basic Network Troubleshooting Using Wireshark
The case studies are really helpful in refreshing my knowledge of wireshark as well as lots of good tips from the trainer based on his experience.
Kai Xiang - SBS transit
Course - Basic Network Troubleshooting Using Wireshark
Trainer is well prepared and dedicated in making us understand. Well done.
