Jumat, 23 Juli 2010
Transmission Control Protocol/Internet Protocol
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Devanda Anggi Mahardikaraga
TCP / IP was developed in the late 1970s to the early 1980s as a standard protocol for connecting computers and networks to form an extensive network (WAN). TCP / IP is an open network standard that is independent of physical network transport mechanism that is used, so it can be used anywhere. This protocol uses a simple scheme called the IP address (IP Address), which allows up to several hundred million computers to be able to talk to each other on the Internet. This protocol is routable, which means the protocol is suitable for connecting different systems (such as Microsoft Windows and UNIX family) to form a heterogeneous network.
TCP / IP has always evolved over time, given the increasing demand for computer network and the Internet. The development was carried out by several agencies, such as the Internet Society (ISOC), the Internet Architecture Board (IAB) and the Internet Engineering Task Force (IETF). Various kinds of protocols running on top of TCP / IP addressing scheme, and the concept of TCP / IP defined in documents called Request for Comments (RFC) issued by the IETF.
How does the architecture of TCP / IP?
Because TCP / IP is a suite of protocols where each protocol do most of the entire network communication task, it is certainly not free implementation of the network architecture itself. Architecture of the protocol TCP / IP defines the various ways that TCP / IP can be mutually adjust.
Because TCP / IP is a protocol layer of the OSI model, meaning that the hierarchy of the TCP / IP refers to the seven layers of the OSI. Three top layer is commonly known as the "upper level protocol" while the bottom four layers are known as the "lower level protocol". Each layer stand alone but the function of each layer depends on the successful operation of the previous layer. A layer of the sender only needs to relate to the same layer in the receiver (so for example the data link receiver only with the data link layer sender) in addition to a layer above or below it (such as network layer associated with the transport layer on top of it or the data layer link below).
Models using this layer is an important concept for a complex function related to communication can be broken down into a number of smaller units. Each layer in charge of providing certain services to the layer above and also protects the layers above it from the details of how the provision of these services. Each layer must be transparent so that the modifications made to it will not cause changes in the lining of the other. Layer to perform its role in the transfer of data to follow the rules for him and only communicates with the layer level. As a result, a single layer on a particular system will only relate to the same layer of the system. This process is known as Peer process. In this state there is actually no data is transferred directly between the layers of the same from these two different systems. The top layer will provide data and control to the underlying layer to the lowest layer achieved. Between two adjacent layers are interfaces (interface). This interface defines the operations and services provided by it to the upper layers. Each layer should perform a set of specific functions perfectly understandable. The set of layers and protocols known as "network architecture".
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- Devanda Anggi Mahardikaraga
- Just a simple | a guy who is strong, firm, uncompromissing, compassionate | #sixgaza | @devamost | STMIK Amikom Yogyakarta 2012 | Amikom English Club | @amikomenglish | #GGMU | INDONESIA
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