PPT-Overview of the Link Layer

CSE 461 University of Washington 2 Where we are in the Course Moving on to the Link Layer Physical Link Network Transport Application CSE 461 University of Washington 3 Scope of the Link Layer. Chapter 3. Data Link Layer Design Issues. Network layer services. Framing. Error control. Flow control. Data Link Layer. Algorithms for achieving:. Reliable, +. Efficient, . communication of a whole units – frames (as opposed to bits – Physical Layer) between two machines.. 3-. 1. Chapter 3. Transport Layer. Computer Networking: A Top Down Approach . 6. th. edition . Jim Kurose, Keith Ross. Addison-Wesley. March 2012. All material copyright 1996-2012. J.F Kurose and K.W. Ross, All Rights Reserved. 3-. 1. Transport Layer. Our goals:. . understand principles behind transport layer services:. multiplexing/demultiplexing. reliable data transfer. flow control. congestion control. learn about transport layer protocols in the Internet:. CS. 3516 – Computer Networks. Chapter 4: Network Layer. Chapter goals:. . Understand . principles behind network layer services:. network layer service models. forwarding versus routing. how a router works. Chapter 3. CN5E by Tanenbaum & Wetherall, © Pearson Education-Prentice Hall and D. Wetherall, 2011. Data Link Layer Design Issues. Error Detection and Correction. Elementary Data Link Protocols. Data Link Layer Design Issues. Error Detection and Correction. Elementary Data Link Protocols. Sliding Window Protocols. Example Data Link Protocols. The Data Link Layer. Responsible for delivering frames of information over a single link. Journal TitleISSN OnlineJournal Link 3D Research 2092-6731 http://link.springer.com/journal/13319 2 4OR 1614-2411 http://link.springer.com/journal/10288 3 AAPS PharmSciTech 1530-9932 http://link.sprin The two main functions of the data link layer are data link control and media . access control. . . The . first, data link control, deals with the design and procedures for . communication between . two adjacent nodes: node-to-node communication. 5-. 1. . Review of . MAC protocols. channel partitioning,. by time, frequency or code. Time Division, Frequency Division. random access . (dynamic), . ALOHA, S-ALOHA, CSMA, CSMA/CD. carrier sensing: easy in some technologies (wire), hard in others (wireless). 6. th. edition . Jim Kurose, Keith Ross. Addison-Wesley. March 2012. A note on the use of these . ppt. slides:. We. ’. re making these slides freely available to all (faculty, students, readers). They. Approach . 7. th. edition . Jim Kurose, Keith Ross. Pearson/Addison Wesley. April 2016. Chapter . 6. The Link Layer . and LANs. 6. -. 1. Link Layer and LANs. A note on . these slides. :. The slides used in this class were derived from ones provided by Jim Kurose and Keith Ross, authors of the textbook for the course.. 4. 1 Introduction. 4.2 Virtual circuit and datagram networks. 4.3 What’s inside a router. 4.4 IP: Internet Protocol. Datagram format. IPv4 addressing. ICMP. IPv6. 4.5 Routing algorithms. Link state. . Error-detection and -correction Techniques. Multiple Access Links and Protocols. Switched Local Area Networks . Link Virtualization: a Network as a Link Layer . Data Center Networking . Retrospective: A Day in the Life of a Web Page Request. Medium Access Control. COS . 463. : Wireless . Networks. Lecture. . 4. Kyle Jamieson. Enables exchange of atomic messages (frames) between end hosts on the same network. Functions in L2:. Determine start and end of bits and frames (.