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DATA LINK CONTROL PROTOCOLS
Because of the possibility of transmission errors, and because the receiver of data may need to regulate the rate at which data arrive, synchronization and interfacing techniques are insufficient by themselves. It is necessary to impose a layer of control in each communicating device that provides functions such as flow control, error detection, and error control.This layer of control is known as a data link control protocol.
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Flow control is a technique for assuring that a transmitting entity does not overwhelm a receiving entity with data. The receiving entity typically allocates a data buffer of some maximum length for a transfer. When data are received, the receiver must do a certain amount of processing before passing the data to the higher-level software. In the absence of flow control, the receiverΓÇÖs buffer may fill up and overflow while it is processing old data.
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To make efficient use of high-speed telecommunications lines, some form of multiplexing is used. Multiplexing allows several transmission sources to share a larger transmission capacity. The two common forms of multiplexing are frequency division multiplexing (FDM) and time division multiplexing (TDM).
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Siswa harusTandai selesaiAddress Resolution Protocol merupakan sebuah protokol yang bertanggung jawab mencari tahu Mac Address atau alamat hardware dari suatu Host yang tergabung dalam sebuah jaringan LAN dengan memanfaatkan atau berdasarkan IP Address yang terkonfigurasi pada Host yang bersangkutan. Dalam OSI layer, protokol ini bekerja antara Layer 2 dan Layer 3.
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Packet tracer
Packet tracer adalah sebuah simulator protocol jaringan dapat mensimulasikan berbagai macam protocol yang digunakan pada jaringan baik secara realtime maupun dengan mode simulasi. Perangkat ini dkembangkan oleh CISCO Sytem, Inc.
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