The two most common transport layer protocols are the transmission control protocol (TCP) and the user datagram protocol (UDP). One of the main differences between the two protocols is reliability.
In some cases, applications can be based upon industry-accepted standards, as shown in Figure 10-27. For example, for devices that need to be able to connect to other devices to transfer data or to ...
Layers 7 through 4 are geared more to the application than the lower layers, which are designed to move packets from one place to another no matter what they contain. This top layer defines the ...