TCP Window Scaling
[Congestion Control](https://texonom.com/congestion-control-1b5b6761042c4199ac20fd1d3c4395c2) 


the window size field is of size 16 bits





> [What is TCP Window Scaling? - GeeksforGeeks](https://www.geeksforgeeks.org/what-is-tcp-window-scaling/)





