The host-to-host layer/transport layer

The main purpose of the Transport layer is to shield the upper-layer applications from the complexities of the network. In this layer, we will discuss the following topics:

• TCP
• UDP
• Key concepts to remember
• Port numbers

The Transmission Control Protocol is a connection-oriented protocol, meaning it makes sure that your data will get to the other side, using a series of checks and balances. TCP has in its arsenal things such as sequencing, windowing, acknowledgement, and negative acknowledgement.

Transmission Control Protocol (TCP)

TCP creates a virtual circuit or connection-oriented connection with the devices' TCP stacks to see whether they are ready to receive information. Once...