It is a basic quantitative property of networks. Delay is a calculate how long it takes for a bit of data to cross across the network from one end to the other. It is calculated in seconds or fractions of seconds.
TYPES OF DELAY:
There are following kinds of delay:
It described as the time to travel across medium.
It is the time needed for network element to forward data.
It is the time needed to get control of phase.
It is the time required in packet switches.