This David Papkin page is about Networks and Internet Concepts
How TCP Three-way handshake works (SYN, SYN-ACK, ACK)
Why does TCP even need a 3-way handshake?
Download Packetracer (must register)
Network Diagram tools
Visual Paradigm Online (VP Online) Free Edition
Diagram Designer 1.29.5 FreeWare
Five free apps for diagramming your network
End of David Papkin page about Networks and Internet Concepts