Processing delay | Time needed to perform an integrity check, lookup packet information in a local table and move the packet from an input link to an output link in a router. |
Queueing delay | Time spent waiting in packet buffers for link transmission. |
Transmission delay | Time spent transmitting packets bits into the link. |
Propagation delay | Time need for bits to physically propagate through the transmission medium from end one of a link to the other. |