This session: 12 - 16 Jul 2027
This Advanced Network Troubleshooting with Wireshark and NetFlow session in London (UK) runs from Monday 12 July to Friday 16 July 2027 (week 28, Q3 2027). It is the 3rd of 3 dates in London (UK) in 2027, at a fee of £6,100, the same for each of them. Registration is open for this date. It is held in person.
| Dates | Monday 12 Jul – Friday 16 Jul 2027 |
|---|---|
| Week | 28 of 2027 |
| Duration | One week |
| Fee | £6,100 |
| Status | Open for registration |
| Format | In person |
Introduction
Modern organizations rely heavily on digital networks as the backbone of their operations. As these networks become more complex and interconnected, troubleshooting and maintaining optimal performance have become mission-critical tasks.
Tools like Wireshark and NetFlow have emerged as indispensable for diagnosing issues, analyzing data traffic, and identifying bottlenecks within enterprise networks.
This course provides participants with advanced knowledge and hands-on skills in network diagnostics using professional-grade tools. It focuses on deep packet inspection, flow analysis, and advanced techniques for identifying the root causes of performance degradation and connectivity problems.
Course Objectives
By the end of this course, participants will be able to:
- Understand advanced concepts of network troubleshooting and diagnostics.
- Use Wireshark to capture, filter, and analyze network traffic.
- Apply NetFlow for traffic flow monitoring and performance evaluation.
- Identify and resolve latency, congestion, and packet loss issues.
- Correlate packet-level data with flow-level analytics.
- Create detailed performance and troubleshooting reports.
- Implement best practices for proactive network monitoring.
- Strengthen operational reliability through effective troubleshooting strategies.
Course Outlines
Day 1: Advanced Principles of Network Troubleshooting
- Overview of network troubleshooting methodologies.
- Common causes of network failures and connectivity issues.
- The structured approach to root-cause analysis.
- Overview of essential diagnostic tools and their use cases.
- Understanding how configuration and architecture affect performance.
- Practical exercise: identifying connectivity issues using traffic analysis.
Day 2: Deep Packet Analysis with Wireshark
- Introduction to Wireshark’s interface and key functionalities.
- Techniques for capturing, filtering, and saving network packets.
- Understanding communication protocols and packet structures.
- Detecting errors, retransmissions, and delays within sessions.
- Case studies of real-world troubleshooting scenarios using Wireshark.
- Practical lab: analyzing live packet captures for issue identification.
Day 3: Network Flow Analysis with NetFlow
- Introduction to NetFlow concepts and data flow architecture.
- Collecting and analyzing flow data for network visibility.
- Identifying top talkers, bandwidth hogs, and congestion points.
- Comparing flow-based vs. packet-based monitoring techniques.
- Using NetFlow data to measure performance and detect anomalies.
- Hands-on lab: analyzing multi-flow data and building performance insights.
Day 4: Combining Wireshark and NetFlow for Comprehensive Analysis
- Integrating packet-level and flow-level data for full visibility.
- Correlating traffic patterns to pinpoint root causes of network issues.
- Advanced session correlation across multiple systems.
- Performance optimization through data-driven analysis.
- Identifying abnormal activities and potential security incidents.
- Workshop: combined analysis using both Wireshark and NetFlow tools.
Day 5: Applied Troubleshooting and Reporting
- Developing a structured troubleshooting workflow.
- Creating detailed technical and management-level reports.
- Measuring pre- and post-resolution performance metrics.
- Implementing proactive monitoring for early issue detection.
- Review of key learnings and best practices.
- Final assessment: simulated troubleshooting project.
Why Attend this Course: Wins & Losses!
- Master advanced techniques for identifying and resolving network issues.
- Gain hands-on experience using Wireshark and NetFlow for real analysis.
- Understand both packet-level and flow-level monitoring for better insight.
- Improve network uptime and reduce mean time to resolution (MTTR).
- Enhance service quality and infrastructure stability.
- Strengthen your ability to produce actionable analytical reports.
- Build proactive monitoring systems for ongoing optimization.
- Boost your technical competence and troubleshooting efficiency.
Conclusion
Advanced Network Troubleshooting with Wireshark and NetFlow is a vital skill set for professionals aiming to maintain robust and high-performing network environments.
By combining packet-level and flow-level analysis, this course enables participants to uncover hidden issues, enhance operational visibility, and implement data-driven optimization strategies.
Through practical labs and structured methodologies, participants will gain the expertise to handle complex troubleshooting scenarios with confidence — ensuring network reliability, performance, and efficiency.
Good to know
How long is the course, and what are the daily hours?
This date lasts one week: 12 - 16 Jul 2027. A one-week course is 20 hours over 5 days: 4 hours each training day (9am – 1pm). Timing and duration can be customised to your needs.
From the FAQ: What is my daily training agenda?
Which language is the course taught in?
Courses are offered in English and Arabic. The course language is officially English; on request, it can be delivered in Arabic while keeping the English terms.
From the FAQ: In which language do you offer your training courses?
Will I receive a certificate?
Yes. At the end of the course you receive the course certificate issued by BlackBird Training, with an online QR code to verify it.
From the FAQ: Do I receive the certificate at the end of the course?
How do I book, and when do I pay?
Choose Apply now and fill in the form; we guide you through the rest. The acceptance letter is sent within 24 hours of your registration. Payment is due at least 10 days before the course starts, online by credit card or by bank transfer.
From the FAQ: How can I register for a training course in BlackBird?, When do I get my Acceptance Letter?, When do I need to pay?, How can I pay for the course?
Can I cancel or send a colleague instead?
You can send a replacement delegate if you tell us one week before the course starts. Cancellation and refund terms are set out in the cancellation policy.
From the FAQ: Can I send a replacement delegate?
Enquire about this date
Advanced Network Troubleshooting with Wireshark and NetFlow, London (UK), 12 - 16 Jul 2027