TCP (Transmission Control Protocol)

TCP (Transmission Control Protocol) is the most important Transport Layer Protocol. It is also one of the important Protocols of network world. TCP is used in many cases in the computer networks. Here, we will focus on an overview of this important Protocol.

First of all, TCP is a Connection Oriented Transport Protocol. A TCP session must be established to use TCP. This TCP Session is established with a Three-way Handshake mechanims. And it can be terminated with a Four-way Handshake mechanism.

Three-way Handshake mechanism consist of three messages as its name implies. These Messages are :



Four-Way Handshake mechanism consist of two messages sent fom both ends, in total 4 message is sent. These messages are :



TCP is a Secure and Reliable Protocol. TCP guarantees the Transport of the data. It controls the bits with ACK mechanism and if are there any missing bits it Retransmits these missing bits. So, it prevent data loose. TCP is for the applications that require high reliability.


We're Sorry!

Full Access is for only IPCisco Crew...

With IPCisco Membership, You Can Access:

• All Certification Courses (Cisco, Juniper, Nokia and Huawei),
• Thousands of Questions (Lesson Quizes and Special Quiz Section),
• Carieer Consultancy, CV/Resume Check, Career Advice Meeting,
• Cheat Sheets, Job Interview Trainings, Network Tools,
You will be Member of a Big IPCisco Community,
You will Learn Network Lessons with Always,
New And Different Learning Styles!
We are waiting for you!

Lesson tags: tcp
Back to: CCIE > TCP