Chapter 6. Troubleshooting and Performance Analysis

In this chapter, we will discuss the use of Wireshark for its primary purpose—troubleshooting network and application connectivity, functionality, and performance issues.

The topics that will be covered include:

• Troubleshooting methodology
• Troubleshooting connectivity issues
• Troubleshooting functional issues
• Performance analysis methodology
• Top five reasons for poor application performance
• Detecting and prioritizing delays
• Server processing time events
• Application turn's delay
• Network path latency
• Bandwidth congestion
• Data transport issues

These topics cover the majority of problems you'll come across in your analysis efforts.