The courses listed below are dedicated to utilizing the Wireshark software product. The instructors we employ for these courses have a long history with Wireshark and know the platform very very well. These classes are largely hands-on and are some of the best material we have seen on the topic.
Troubleshooting TCP/IP Networks with Wireshark
Deep Dive Into Wireshark
Network Analysis & Surveillance: Open-Source Tools & Techniques
Locate the Source of Application and Network Problems with Wireshark
Wireless IP Network Analysis Using Wireshark