The mac sub layer but, different media have different constraints about multiple nodes accessing the medium 118. Tcpip combines the osi data link and physical layers into one layer. The data link layer provides services to the network layer. Mar 06, 2017 this feature is not available right now. This layer is one of the most complicated layers and has complex functionalities and liabilities. Ppt the data link layer powerpoint presentation, free download. Jan 12, 2009 the mac sub layer data link layer provides packet sendreceive service to network layer 116. The data link layer is the protocol layer in a program that handles the moving of data in and out across a physical link in a network. Download our 100% free layers templates to help you create killer powerpoint presentations that will blow your audience away. The data link layer transforms the logical communication channel. Content osi model data link layer sub layers functions of data link layer devices and.
Chapter 5 peertopeer protocols and data link layer powerpoint ppt presentation. Ppt layer 2 data link layer powerpoint presentation, free. Datalink layer powerpoint presentation free to download id. Displaying powerpoint presentation on lecture2 physical and data link layer tel aviv university available to view or download. Framing in the data link layer separates a message from one source to a destination, or from other messages to other destinations, by adding a sender address and a destination address. The data link layer divides the stream of bits received from the network layer into data units called frames. A free powerpoint ppt presentation displayed as a flash slide show on id. Ppt the data link layer powerpoint presentation, free. Compare the functions of logical topologies and physical topologies. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed data driven chart and editable diagram s guaranteed to impress any audience.
Providing service interface to network layer dealing with transmission errors. Sebelum diteruskan kenetwork layer, data link layer melaksanakan tugas ini dengan memungkinkan pengirim memecagmecah data input menjadi sejumlah data frame biasanya berjumlah ratusan atau ribuan byte. Insert dle before accidental dle in data remove stuffed character at destination fig 34 8 the ohio state university raj jain bit stuffing delimit with special bit pattern bit flags stuff bits if pattern appears in data remove stuffed bits at destination fig 35. Data link layer 6 host a host b layer 4 node 2 node 1 layer 4 layer 2 frame data link layer model assume host has infinite supply of messages. Logical link control llc and media access control mac.
The data link layer provides a means for exchanging data over a common local media, hop to hop delivery. Aug 01, 20 download data link layer presentation transcript. Symmetric encryption can be applied at different layers of the communication stack such as the data link layer e. Ppt data link layer powerpoint presentation free to download id. Presentation layer of osi reference model takes care that the data is sent in such a way that the receiver will understand the information data and will be able to use the data. The data link layer is used for the encoding, decoding and logical organization of data bits. Download multilayer powerpoint templates and diagrams with stacked layers that you can use to represent different business concepts or describe a multilayered relationship in powerpoint presentations. Download lecture2 physical and data link layer tel aviv university ppt for free. Determines how the bits of the physical layer are grouped into frames framing. Node constructs frame from a single packet message.
This layer is the protocol layer that transfers data between adjacent network nodes in a wide area network wan or between nodes on the same local area network lan segment. This presentation covers the design issues of dll, error correction and detection techniques, sliding window protocols. Ppt data link layer powerpoint presentation free to. The media access control mac the logical link control llc. With power map, you can plot geographic and temporal data on a 3d globe or custom map, show it over time, and create visual tours you can share with other people. Regulating the flow of data so that slow receivers are not swamped by fast senders 4 for this, the data link layer takes the packets it gets from the network layer and encapsulates them into frames for transmission. Ppt data link layer powerpoint presentation, free download id.
In this lesson we examine the data link layer its services, the principles underlying its operation, and a number of important data link layer protocols. The physical layer must wait until this event is completed and the data link layer goes back to its sleeping state. Data link control application presentation session transport network data link control network network dlc dlc dlc dlc physical link virtual bit pipe. Data link layer of osi reference model studytonight. Data networks lecture 1 introduction eytan modiano eytan modiano. Data link layers hides the details of underlying hardware and represents itself to upper layer as the medium to communicate. It provides network services to the users applications.
The data link layers first sublayer is the media access control mac layer. Data link layer, data link control, design issue youtube. The three major types of services offered by data link layer are. Data networks lecture 1 introduction mit opencourseware. Advanced computer architecture lecture notes free download computer graphics c version hearn and baker free. You can see some data link protocols powerpoint presentation, computer network sample questions with examples at the bottom of this page. Data link layer is second layer of osi layered model. Services provided to the network layer framing error control flow control. Data link layer article about data link layer by the free. The data link layer, or layer 2, is the second layer of the seven layer osi model of computer networking. The data link layer also determines how devices recover from collisions that may occur when nodes attempt to send frames at the same time. Some traffic regulation mechanism is often needed to let the transmitter know how much buffer space the receiver has at the moment. Typically, the network layer adds its own header to the packets received from the transport layer. A link isthe communication channels that connect two adjacent hosts or routers.
The data link layer accepts messages from the network layer and controls the hardware that actually transmits them. Layer 1 involves media physical, wireless digital data bit streams that travel on media, slideshow 5925 by anikabrowning. Protocols are developed in increasing complexity to help understand the data link layer issues. We learn that the basic service of the data link layer is to move a network layer datagram from one node host or router to an adjacent node. Describe the basic characteristics of media access control methods on wan topologies. The issue that arises in the data link layer and most of the higher layers as well is how to keep a fast transmitter from drowning a slow receiver in data.
Let us discuss services provided by the data link layer. The mac sub layer but, different media have different constraints. Checksum is automatically appended in the hardware. Layer 6, the presentation layer, is responsible for how an application formats the data to. Map data plot more than a million rows of data visually on bing maps in 3d format from an excel table or data model in excel. Find powerpoint presentations and slides using the power of, find free presentations research about tanenbaum computer networks ppt. Data packets are framed and addressed by this layer, which has two sublayers. Ppt chapter 5 peertopeer protocols and data link layer powerpoint presentation free to download id. Data link layer layer 2 page 1 of 2 the secondlowest layer layer 2 in the osi reference model stack is the data link layer, often abbreviated dll though that abbreviation has other meanings as well in the computer world.
The mac sub layer data link layer provides packet sendreceive service to network layer 116. Physical layer and its limitations issues with shared media. Both the sender and receiver have to agree on the rules or protocols that govern how their data link layers will communicate with each other. Download data link layer in lan presentation transcript. Chapter 5 peertopeer protocols and data link layer data link operates over wirelike, directlyconnected systems. If frames are to be distributed to different systems on the network, the data link layer adds a header to the frame to define the physical address of the sender source address andor receiver destination. Ppt layer 2 data link layer powerpoint presentation. Examples of linklayer protocols include ethernet, token ring, fddi, and ppp. The data link layer is connected to the media in one of two ways. We have shown a vertical line to indicate the delay. Aug 01, 20 download data link layer in lan presentation transcript. Data link layer protocols free download as powerpoint presentation. Download multi layer powerpoint templates and diagrams with stacked layers that you can use to represent different business concepts or describe a multilayered relationship in.
The adobe flash plugin is needed to view this content. Presentation layer of osi reference model studytonight. After data transfer, the user then terminates the data link connection, which is acknowledged by the system. Data link protocols powerpoint presentation, computer network summary and exercise are very important for perfect preparation. Content osi model data link layer sublayers functions of data link layer devices and.
The data link layer needs to pack bits into frames, so that each frame is distinguishable from another. The section then lists and briefly describes the services provided by the datalink layer. View data link layer ppts online, safely and virusfree. Nov 05, 2012 cisco ccna 01 chapter 07 data link layer. Data link layer error detection and correction osi model. The data link layer is layer 2 in the open systems interconnect osi model for a set of telecommunication protocols. Ppt osi model powerpoint presentation free to view. It differs from the other layers in that it does not provide services to any other osi layer, but rather, only to applications outside the osi. Chapter 9 introduction to datalink layer ppt download. In ethernet and wifi networks, the data link layer is split into two sublayers.
Application layer the application layer is the osi layer that is closest to the user. This header provides the information needed for routing e. Application presentation session transport network data link physical application presentation session transport network data link physical middle layer higher layer application to application application to application application to application process to process lower layer hop to hop switch hop to hop physical medium hub and repeater router. Of course the user or the system could have chosen to terminate the network layer ipcp and keep the data link layer running if it wanted to run another ncp protocol. Computer networking and management lesson 5 the data link layer. Ppt chapter 5 peertopeer protocols and data link layer. Download cbse notes, neet notes, engineering notes, mba notes and a lot more from our website and app. Chapter 5 the data link layer data link layer has responsibility of transferring frames from one node to adjacent node over a link. Data link layer design issues providing a welldefined service interface to the network layer. The data link layer sits between the physical layer and the network layer.
Data link protocols powerpoint presentation, computer. Ppt on data link layer in lan powerpoint presentations. The most popular multipoint data link protocol is ethernet. But the actual path is network layer data link layer physical layer on source machine, then to physical media and thereafter physical layer data link layer network layer on destination machine. It starts with defining the concept of links and nodes. As a frame is being built at the data link layer and that frame is destined to leave its home network for some other far off network as a packet, something must tell the upper layers, above the frame level, what protocol will be used to carry this packet far, far away. The mac sub layer physical layer provides binary sendreceive to data link layer 117. Data link layer protocols transmission control protocol. Kemudian data link layer mentransmisikan frame tersebut secara berurutan, dan memproses acknowledgement frame yang dikirim kembali oleh penerima. The physical layer of the osi model defines connector and interface. This is the official web site of tcpdump, a powerful commandline packet analyzer.
Data link layer hides the details of underlying hardware and represents itself to upper layer as the medium to communicate. Datalink layer introduction data link layer is second layer of osi layered model. View and download powerpoint presentations on tanenbaum computer networks ppt. Provides a welldefined service interface to the network layer.
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