Overview of TCP/IP Protocol Suite
TCP/IP model was created by the U.S. Department of Defense (DoD). The TCP/IP protocol suite forms the foundation of the Internet. The main protocols in this suite are the TCP and IP protocols that are described below, along with the UDP protocol.
IP - Internet Protocol
- It is the most basic underlying protocol for communication over the Internet.
- It provides "Addressing" over the Internet. Just like a postman needs house address to deliver mail.
- Internet needs IP address to deliver data (packets) to your computer.
TCP - Transmission Control Protocol
TCP provides connection-oriented reliable transmission of data over a network. It ensures that information that is sent to a destination, reaches the destination. Incase some parts of the information are lost along the way due to network congestion or losses, TCP detects missing parts and re-transmits them.
UDP- User Datagram Protocol
UDP is another important protocol in the TCP/IP protocol suite. It offers best effort (unreliable) delivery of data but has less transmission overhead than TCP.
