What are the data units at different layers of the TCP / IP protocol suite?
Data at application layer is called message
The data unit created at the application layer is called a message, at the transport layer the data unit created is called either a segment or an user datagram, at the network layer the data unit created is called the datagram, at the data link layer the datagram is encapsulated in to a frame and finally transmitted as signals along the transmission media.
Filed Under: Networking
Job Role: Network Engineer