How TCP Works - MTU vs MSS

Hey packet people!

There is a big difference between the Maximum Transmission Unit (MTU) on an ethernet connection or IP interface and the Maximum Segment Size in TCP. In this video we will take a look at how and where each is set, how it impacts the encompassed data, and how the network can adjust these settings.

These core concepts will help when troubleshooting broken or slow connections due to MTU or MSS.

Hope it helps in troubleshooting with Wireshark!

Got network problems? Get in touch!

Author Profile - Chris Greer is a Packet Head for Packet Pioneer LLC and a Certified Wireshark Network Analyst. Chris regularly assists companies in tracking down the source of network and application performance problems using a variety of protocol analysis and monitoring tools including Wireshark. Chris also delivers training and develops technical content for several analysis vendors.