Networks and protocols in the TCP/IP Model

The network and Protocol transport layers in the TCP/IP model define two end-to-end protocols: TCP and UDP. TCP (Transmission Control Protocol) Transmission Control Protocol, which divides the input byte stream into packet segments and sends them to the Internet layer. TCP also needs to process traffic control to prevent the receiver from being unable to process too many packets sent to the low-speed receiver. Www.2cto.com UDP (User datainprotocol) User Datagram Protocol, which is an unreliable and connectionless Protocol, it is used for applications that do not require TCP sorting and traffic control capabilities but complete these functions by themselves. High-level protocol: TELNET (virtual terminal Protocol): allows users on a machine to log on to a remote machine and perform work. FTP (file transfer protocol): provides effective methods to move data from one machine to another. SMTP (email Protocol): Send E-MAIL. Www.2cto.com DNS (Domain Name System Service): used to map the host name to the network address. HTTP (Hypertext Transfer Protocol): used to obtain the home page on the World Wide Web.