PPT-Ethernet and Token Ring LAN Networks

Local Area Network local area network LAN is a computer network that is designed for a limited geographic area such as a building or a campus The three upper layers are common to all LANs The LANs differ in the 2 lower layers . In applications with a great number of sensor nodes and a wide area of monitored environment it is not always feasible to replace the battery In some cases even the lo cation of the sensor node is unknown In order to achieve a long lifetime of the s Helsinki University-Aalto University. Miniconference.  . Thursday. 27.11.2014. Ken Pennington & . Jan-Mikael Rybicki, . 14.00-14.. 30. Background. :. Aalto . University’s. . goal. . is to . and. Gigabit Ethernet . Advanced Computer Networks. D. 12. Fast/Gigabit Ethernet Outline. Fast Ethernet. 100 BASE T4. 8B/6T encoding. 100 BASE TX. 100 BASE FX. Collision domains. Gigabit Ethernet. 1000 BASE SX. :. Redes Locales. Rogelio . Montañana. Esta obra está bajo una . Licencia . Creative. . Commons. Atribución-. NoComercial. -. CompartirIgual. 4.0 Internacional. . . Sumario. Tipos de redes. Relación del modelo OSI con los estándares IEEE 802.x y ANSI X3Tx. Developed in the mid-1970s by researchers at the Xerox Palo Alto Research Centers (PARC).. Uses CSMA/CD technology. Carrier Sense Multiple Access with Collision Detection.. A set of nodes send and receive frames over a shared link.. Instructor: Mikko H . Lipasti. Fall 2010. University of . Wisconsin-Madison. Optional lecture – just for “fun”. Good News. Technology advances at astounding rate. 19. th. century: attempts to build mechanical computers. this chapter you . will . learn-. W. hat . a . network . does. C. omponents . of a wired . network. To use . a . network. to share resources. Wired Networks. Networks. . come in . many sizes and vary widely . Chapter 5 . : Objectives. In this chapter, you will learn to:. Describe the operation of the . Ethernet . sublayers. .. Identify the major . fields of the Ethernet frame. .. Describe the purpose and characteristics of the Ethernet . Chapter 6 : . Objectives. In this chapter, you will learn to. :. Describe the operation of the Ethernet . sublayers. .. Identify the major fields of the Ethernet frame.. Describe the purpose and characteristics of the Ethernet MAC address.. The Basics. Primary Function of a LAN. File serving – large storage disk drive acts as a central storage repository. Print serving – Providing authorization to access a particular printer, accept and queue print jobs, and user access to print queue to perform administrative duties. At the end of this lesson, the students will become familiar with the following concepts: . Explain the basic characteristics of LANs . Explain the operation of IEEE 802 LANs . 802.3 - CSMA/CD-based (Ethernet) . 1. Local Area Networks. Aloha. Slotted Aloha. CSMA (non-persistent, 1-persistent, . p-persistent). CSMA/CD. Ethernet. Token Ring. Networks: Local Area Networks. 2. Data Link. Layer. 802.3. The Basics. Primary Function of a LAN. File serving – large storage disk drive acts as a central storage repository. Print serving – Providing authorization to access a particular printer, accept and queue print jobs, and user access to print queue to perform administrative duties. Keith T. Weber, GISP. GIS Director. ISU-GIS Training and Research Center. Once Data is Created (saved). Someone will want a copy (sharing). BTW, this entire refrigerator-sized memory bank stored 4KB of data.