Course Outline
- Introduction to network troubleshooting
- Understanding network troubleshooting
- Tools for troubleshooting
- Methodologies for troubleshooting
- Introduction to Wireshark
- How Wireshark operates
- 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 – basics and filter language
- Display filters – basics and filter language
- Useful filters
- Lab exercises and case studies
- Utilizing time values and summaries
- Configuring default time column settings and precision
- Utilizing time between packets
- Setting a time reference and viewing capture times
- Troubleshooting timing-related problems
- Lab exercises and case studies
- Utilizing statistical tools
- Creating I/O graphs
- Creating 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 and abnormal network communications
- Causes of performance issues
- Packet losses, excessive ACKs, and retransmissions
- Labs and case studies
- Bandwidth issues
- Measuring bandwidth
- User/flow throughput calculations
- Application throughput calculations
- Bandwidth and throughput problems
- Lab exercises and case studies
- Latency issues
- Key points in calculating latency
- Plotting periods of high latency
- Accessing free latency calculators
- Utilizing the frame.time_delta filter
- Lab exercises and case studies
- Packet loss and retransmissions
- Packet loss and recovery mechanisms for UDP and TCP
- Previous segment loss and out-of-order segments
- Duplicate ACKs and fast retransmissions
- TCP retransmissions
- Zero window, window changes, and other window-related problems
- Lab exercises and case studies
Requirements
Participants must possess basic networking knowledge and an understanding of the TCP/IP protocol stack. Each attendee is required to bring a laptop with Wireshark installed, which can be downloaded free of charge from 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 3900 € + 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.
