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Lesson 2 TCP/IP protocol suite
ObjectiveDefine the components of TCP/IP protocol suite.

TCP/IP Protocol Suite

TCP/IP operates on a wide variety of physical networks and can be scaled to suit small to large networks. IP is the protocol used for communications on public networks such as the Internet. If your business plans to be connected to the Internet, it must use TCP/IP as its LAN protocol. TCP/IP has become the LAN protocol of choice for businesses large and small because virtually all businesses need to be connected to the Internet.
In order to effectively design a TCP/IP network infrastructure, you need to consider the following:
  1. The components of the TCP/IP protocol suite
  2. The design decisions influencing a TCP/IP solution
  3. The features and functionality provided by TCP/IP in Windows® 2000

This lesson will examine the TCP/IP protocol suite. Forthcoming lessons will look at the other essential aspects to designing with TCP/IP.

TCP/IP Protocol Suite

The TCP/IP suite of protocols allows the design of a logical peer network by using an underlying physical network infrastructure. These vendor-independent protocols can be used to implement IP networks ranging from small local area networks (LANs) to large enterprise networks.
The following MouseOver shows the mapping of the Open Systems Interconnection (OSI) seven-layer model to the TCP/IP four-layer model, and the major components of the TCP/IP suite. We assume the OSI layer one and two infrastructure is in place for any design considerations in this module.
Open Systems Interconnection (OSI): A framework designed by the International Standards Organization for which new network protocols to based themselves.


(IETF) Internet Engineering Task Force

Tcp Ip Protocol Suite
The (IETF) Internet Engineering Task Force continues to revise and improve the TCP/IP suite of protocols. Microsoft continuously updates the TCP/IP implementation to comply with the latest IETF standards.
The next lesson provides a global view of the considerations for designing a TCP/IP solution.