# Transmission vs Propagation Delay

This animation illustrates the difference between transmission and propagation delay.

You can set the length of the link, the packet size, the transmission speed, the propagation speed of the link; The animation shows the packet being sent from sender to receiver Note that for many combinations, the head of the packet reaches the receiver before transmission is finished at the sender.

## configuration

### length

sets the distance between sender and receiver in km

### rate

sets the data rate

### propagation

sets the propagation speed

### size

sets the size of the data

### start

starts or restarts the simulation

coded by Johannes Kessler 2012 based on the applet by David Grangier