Transport vs Network Layer

responsbile to send entire message from a host to a destination

responsible to send packets from a host to a destination

process-to-process communication or port-to-port communication

host-to-host communication

used inside of same networks and different networks

used when hosts are in different networks

uses port address to ensure the communication

uses logical address to ensure for communication

implemented on host machine

implemented on networking devices (routers, switches)

provides better flow control and error control

flow control and error control is not good as transport layer