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Data Link Layer Issues

Dec 31, 2012

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Types of Networks. Network hardware can be categorized into:Circuit-switched (e.g. telephone)Prior to communication, the hardware establishes a dedicated end-to-end connectionSince there is a dedicated connection, a continuous stream of bytes can be sentFrequency or time-division multiplexing ca

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Data Link Layer Issues

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Data Link Layer

Data Link Layer Introduction. The data link layer sits between the physical layer and the network layer.The data link layer accepts messages from the network layer and controls the hardware that actually transmits them.Both the sender and receiver have to agree on the rules or protocols that gove

1.3k views • 67 slides

Data Link Layer

PART III. Data Link Layer. Position of the data-link layer. Data link layer duties. LLC and MAC sublayers. IEEE standards for LANs. Chapters. Chapter 10 Error Detection and Correction. Chapter 11 Data Link Control and Protocols. Chapter 12 Point-To-Point Access.

849 views • 48 slides

Data Link Layer

Data Link Layer. Sliding window. Think the frames the sender has to send as a continuous stream. The window contains the current frame being sent and is not acked yet. Every ack (Expc) moves the window forward one frame. Correctness Part is Done!.

548 views • 32 slides

Data Link Layer

Data Link Layer. Reasons for error :. Due to low power supply. Due to low or high temperature. Cross talk from adjacent signal can corrupt the signal. Reactance , inductance and capacitance can tends the signal weak in wire. Data Link Layer.

636 views • 42 slides

Data-link Layer

Data-link Layer. Computer Networks. Where are we?. The Data Link Interface. The Local Area Network. Popular (most data links are LANs) High Throughput Low Cost Short Distances Often shared medium access Most new installations usually &quot;switched&quot;. Shared Medium Access.

664 views • 48 slides

Data Link Layer

Data Link Layer. B. Konkoth. PDU. Protocol Data Unit A unit of data which is specified in a protocol of a given layer Layer 5, 6, 7 – Data Layer 4 – Segment Layer 3 – Packet Layer 2 – Frame Layer 1 - Bit. Data Link Layer.

359 views • 17 slides

Data/Link Layer Issues

Data/Link Layer Issues. Protocol &amp; Services Topology Error Detection &amp; Recovery. Topology vs Geography. Physical Layout How the signal actually travels. Logical Layout &quot;How devices talk to each other&quot; -or- &quot;How devices hear each other&quot;. Topologies. BUS.

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Data Link Layer

Data Link Layer. Two sublayer: Medium access sublayer (MAC) Logical link control (LLC). Data Link Layer. LANs -- Referred to as: Multiaccess channels Random access channels LANs Characterized by: Data rate of at least several Mbps Low error rates

1.17k views • 90 slides

Data Link Layer

Data Link Layer. Shivkumar Kalyanaraman Rensselaer Polytechnic Institute shivkuma@ecse.rpi.edu http://www.ecse.rpi.edu/Homepages/shivkuma Based in part upon the slides of Prof. Raj Jain (OSU). The data link layer problem Error detection and correction

701 views • 54 slides

Data Link Layer

Data Link Layer. Concerned with the tranmission of “frames” between two directly connected IMP’s. We follow [Tannenbaum]. Note that (prove for ec) -&gt; +5 IMP=interface message processor (nod or station). IMP. IMP. IMP. Host. IMP. Host. HOST. HOST. IMP. IMP. HOST. Host.

646 views • 41 slides

Data Link Layer

Data Link Layer. Part I: Encoding. Network Architecture. message. segment. packet. frame. signal. What is a Data Link?. The Sine Wave. f(t) = Asin(B*t + C). A – amplitude B – frequency C – phase shift. Non-Zero Return Encoding Sender Sends:. Non-Zero Return Encoding Receiver Gets:.

253 views • 10 slides

Data Link Layer

Data Link Layer. Objective: to achieve reliable and efficient communication between 2 adjacent machines Data link layer design issues services provided to the network layer unacknowledged connectionless service acknowledged connectionless service acknowledged connection-oriented service

455 views • 14 slides

Data Link Layer

581 views • 48 slides

Data Link Layer

Data Link Layer. Dr. K.Raghava Rao Professor, Dept. of ECM raghavarao@kluniversity.in. Data link Layer Design Issues. Providing a well-defined service interface to the network layer. Dealing with transmission errors.( Error Control )

1.19k views • 105 slides

Data Link Layer Issues

Data Link Layer Issues. Dealing with Different Types of Networks. Types of Networks. Network hardware can be categorized into: Circuit-switched (e.g. telephone) Prior to communication, the hardware establishes a dedicated end-to-end connection

179 views • 12 slides

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