TCP / IP protocol stack - reference map

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The Defense Advance Research Projects Agency (DARPA) originally developed Transmission Control Protocol / Internet Protocol (TCP / IP) as a mechanism for connecting different networks in the U.S. Department of Defense (DoD) in a way that communication can 'survive' in any conditions. Internet, international, very widespread international network (WAN) using TCP / IP protocol into an environment of institutional and government institutions worldwide. This protocol suite is widely distributed in commercial and private networks. In the following picture in the list that follows lists all the protocols used by TCP / IP connected environment.

Graph that follows is compiled content TCP / IP model and the OSI model. The part that covers the TCP / IP has four groups of similar colors and their names are written in red-yellow letters on the middle of the picture, and some layers of the OSI model, separated by a space, and their names are written on the left side of the image with brown letters. Regarding intelligibility descriptions that follow, it is useful to remember the displayed image next image 'packages' contents from a higher to a lower layer (encapsulation) when sending data, or wrapping the new header content in the lower layer, and 'unpacking' contents from a lower layer to a higher when receiving data (decapsulation), as shown in Figure 7.4.6 animation - comparison of the OSI model and the TCP / IP model. Next image is mapped; label with the name of the protocol in each of the geometric shapes coupling according to the associated description.

		Protocols according to layers of OSI and TCP / IP models: Data Link Layer   Network Layer   Transport Layer   Session Layer   Application Layer   Routing   Tunneling   Security Basic TCP / IP protocol suite: TCP - Transmission Control Protocol   IP - Internet Protocol version 4   IPv6 - Internet Protocol version 6   UDP - User Datagram Protocol
TCP / IP protocol suite inside OSI model.

OSI model is essentially by the functionality divided into two groups:

• Media Layers - layers are responsible for medium access and identification of destinations
  ( L1-Physical / L2-Data Link / L3-Network )
  
  
• Host Layers - layers are responsible for the exchange of data, their use and display
  ( L4-Transport / L5-Session / L6-Presentation / L7-Application )

Network devices for connecting computers basically serve the first three layers. Computers that have the role to interpret what needs to be sent or received using the all displayed layers and therefore the upper four layers are connected to him because all of the user's host computer program support, including worms and viruses with them all over. If the L4 group moved into the upper layer, layers are then divided into:

• Transport Layers - layers are responsible for media access, access to the destination and the exchange of data
  ( L1-Physical / L2-Data Link / L3-Network / L4-Transport )
  
  
• Application Layers - layers are responsible for the use of data and their presentation on screen of monitor
  ( L5-Session / L6-Presentation / L7-Application )

For fast retrieval of the contents that belong to different layers of the OSI model, or certain functions in the network are used for couplings of the image below and that are links in the table at this page, and the couplings that are the basic of TCP / IP protocol suite are links to the next page. For each protocol, according to its abbreviated name, made as coupling in the following table which leads to available pages and the place where is protocol briefly described.

Descriptions on this website are taken from the content quality web-site ' PROTOCOLS.COM ', which, among other things, a detailed description of the TCP / IP Suite of protocols. Descriptions on this pages are shortened and simplified, as picture books, concerning the acquisition of a general picture of the TCP / IP suite of protocols and serve as a quick reference. Therefore represent a very small part of a much more comprehensive contents of that site, which includes a description of other families of protocols (AppleTalk, ATM ...) and much more. To achieve complete insight into the possibilities of these protocols must be visited pointed web-site. Should not complain about time browsing ' PROTOCOLS.COM ' site because the original contents are really of very good quality. But the appearance that the contents of site have been moved elsewhere.

For quick retrieval of particular pages of this site serves, a small menu is set at the top and bottom of each page.

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