'Data link control' diaporamas de présentation

S-72.1130 Telecommunication Systems

S-72.1130 Telecommunication Systems. Wireless Local Area Networks. Outline. LAN basics Structure/properties of LANs WLANs Link layer services Media access layer frames and headers CSMA/CA Physical layer frames modulation Frequency hopping Direct sequence Infrared Installation

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Linux+ Guide to Linux Certification, Third Edition

Linux+ Guide to Linux Certification, Third Edition. Chapter 12 Network Configuration. Objectives. Describe the purpose and types of networks, protocols, and media access methods Explain the basic configuration of TCP/IP Configure a Network interface to use TCP/IP

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Multiplexing

Multiplexing. Multiplexing: Combining multiple data (voice) channels for transmission on a common medium. Multiple devices sharing one physical link. Demultiplexing: Recovering the original separate channels from a multiplexed signal.

1.82k views • 57 slides

Data Communications

Data Communications. Multiplexing. Multiplexing. Frequency Division Multiplexing. FDM Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency Carrier frequencies separated so signals do not overlap (guard bands)

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Computer Networks

Computer Networks. Chapter 1 - Fundamentals. Computer Networks. Need to share Information Resources Communication vs. Storage Transmission across: Space (communication) Time (storage). Virtuality. Architecture Layered Hierarchical Algorithms Information hiding, ADTs, objects

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William Stallings Data and Computer Communications

William Stallings Data and Computer Communications. Chapter 8 Multiplexing. Multiplexing. Frequency Division Multiplexing. FDM Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency

464 views • 38 slides

William Stallings Data and Computer Communications

William Stallings Data and Computer Communications. Chapter 8 Multiplexing. Multiplexing. Frequency Division Multiplexing. FDM Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency

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10 ? . ??? ?? ?? (Data Link Control)

10 ? . ??? ?? ?? (Data Link Control). 10.1 Line Discipline 10.2 ?? ?? (Flow Control) 10.3 ?? ?? (Error Control) 10.4 ??. ??? ?? ?? (Data Link Control). Data Link Layer. ??? ?? ?? (Data Link Control). Data Link Layer functions. 10.1 Line Discipline.

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Data and Computer Communications

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Data Link Control

Data Link Control. Line Discipline Flow Control Error Control. Figure 10-1. Functions of Data Link Layer. Figure 10-2. Figure 10-3. Figure 10-4. ENQ/ACK. Figure 10-5. ENQ/ACK. Figure 10-6. Multipoint Discipline. Figure 10-7. Select. Figure 10-8. Poll. Figure 10-9.

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11-6 HDLC

High-level Data Link Control (HDLC) is a bit-oriented protocol for communication over point-to-point and multipoint links. It implements the ARQ mechanisms. 11-6 HDLC. Configuration and Transfer Modes. Figure 11.25 Normal response mode. Figure 11.26 Asynchronous balanced mode.

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Data Link Control

Data Link Control. Physical layer is only responsible for data transmission Data link control is responsible for converting transmission to communication Line Discipline: Who should send now? Flow Control: How much data may be sent?

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High-level Data Link Control

High-level Data Link Control. HDLC Station ?? Primary Station Link ? ?? ??? ?? Command Secondary Station Response Combined Station Command/Response. High-level Data Link Control. HDLC ? ??. Unbalanced Primary Station ? Secondary Station ? Control. Symmetrical

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Data Link Control

Data Link Control. We want to minimize the amount of error correcting and detecting we need to do. Framing. The primary purpose of the data link layer is to ensure data moves from one end of a link to the other accurately.

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Data Link Control

Data Link Control. We want to minimize the amount of error correcting and detecting we need to do. Framing. The primary purpose of the data link layer is to ensure data moves from one end of a link to the other accurately.

177 views • 16 slides

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Data Link Control

Data Link Control. For effective data communication. Frame synchronization Flow control Error control Addressing Control and data on same link Link Management. Flow Control. Necessary when data is being sent faster than it can be processed by receiver

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Data Communication and Networks

Data Communication and Networks. Lecture 0 Administrivia September 4, 2003 Joseph Conron Computer Science Department New York University jconron@cs.nyu.edu. Adminstrivia. You must be registered in G22-2262-001 to receive a grade How to reach me: jconron@cs.nyu.edu

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COE 341: Data and Computer Communications (3-0-3)

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EE 766 Computer Interfacing and Protocols

EE 766 Computer Interfacing and Protocols. Winter 2006 Dr. Charles Klein. Introduction Basic Network Concepts OSI Model Encoding and Modulation Transmission Media* Grounding and Shielding* Transmission Lines Error Detection and Correction. Asynchronous* Communications

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