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PERSONAL INFORMATION :-

PERSONAL INFORMATION :-. SHEIKH MOHSIN JAMEEL (1421-311070) WASEEM AKHTER (1421-1111111) MASUD (1421-1111111) SHUJAT (1421-1111111). PRESTON UNIVERSITY ISLAMABAD. CHAPTER 4 :. ETHERNET. ETHERNET :-. Definition Connetion of number of system. Background 1972 Robert Metcalf

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PERSONAL INFORMATION :-

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  1. PERSONAL INFORMATION:- • SHEIKH MOHSIN JAMEEL • (1421-311070) • WASEEM AKHTER • (1421-1111111) • MASUD • (1421-1111111) • SHUJAT • (1421-1111111) PRESTON UNIVERSITY ISLAMABAD.

  2. CHAPTER 4: ETHERNET

  3. ETHERNET:- • Definition • Connetion of number of system. • Background • 1972 Robert Metcalf • David Boffs at Xeror PRODUCTION OF ETHERNET: • First Ethernet Specification • 100 computers at 3 Mbps • 1990 Ethernet Specification • IEEE 802.3 specification at 10 Mbps

  4. HOW ETHERNET WORKS: • Ethernet access: • CSMA/CD • Example: • Old party-line telephone system.

  5. ETHERNET CABLING SYSTEM: • 10 Mbps Ethernet: • 10base5 or thicknet • 10base2 or thinnet • 10baseT or twisted pair • 10baseFL or fiber optics • 100 Mbps Ethernet: • 100VG-Any LAN • 100BaseT Ethernet

  6. 10Mbps Ethernet: 10base5 Ethernet: • Specifications: • Disadvantages: • Large size • High cost • Connection method

  7. 10BASE2 ETHERNET: • Specifications: • Disadvantages: • Network gets failure by any single broken node • High cost compared to UTP cable • Network unreliable due to BUS configuration

  8. 10BASET ETHERNET: • Specifications:

  9. 10BASEFL ETHERNET: • Specifications:

  10. 100Mbps Ethernet: 100VG-AnyLAN Ethernet: • Specifications: • 100VG-AnyLAN • 100baseVG • VG • AnyLAN • Advantages: • It is faster • It supports both Ethernet and Token Ring packets • It uses a demand priority access method that allows for two priority levels • Hubs can filter individually addressed frames for enhanced privacy • Note: • Categories 3,4 and 5 twisted pair and fiber optics can be use. • Uses Star topology and defines how child hubs can be connected • The length of any two segments must not exceed 250 meters

  11. 100baseT Ethernet: • Specifications: • 100baseT4 (categories 3,4 or 5 UTP or STP) • 100baseTX (category 5 UTP or STP) • 100baseFX (fiber-optic cable) • Note: • 100baseX has the same advantages and drawbacks as 10baseT.

  12. Token Ring: • Definition: • IEEE 802.5 standard • Topology physically like a star • Logically a ring topology • Background: • Developed by IBM as a robust • Highly reliable network • Complex than Ethernet • Self-healing and properties

  13. TOKEN RING: HUBS: • Categories: • MAU(Multi-station Access Unit) • MSAU(Multi-station Smart Access Unit) • SMAU(Smart Multi-station Access unit) • Card Addressing and Settings: • Unique address • maximum two cards installation in single workstation • Uses DIP switch settings • cable connects 9-pin female connector • 4 wires are required to make the connection to each card as UTP cable connection

  14. Token Ring: • Specifications:

  15. How token ring works:- • Token passing • NAUN(nearest active up-neighbour) • NADN(nearest active down-neighbour) • Active monitors • Standby Monitors • Beaconing Advantages:- • reliable under heavy load • built-in diagnostic and recovery mechanisms • connecting a LAN to an IBM mainframe easier • fault-tolerance features through ring wrap Disadvantages:- • token ring cards and equipments are expensive • very difficult to troubleshoot and requires expertise

  16. FDDI(FIBER DISTRIBUSTED DATA INTERFACE): • DEFINITION: • Ring-based network • Implemented without hubs • Uses devices called concentrators • Uses fiber optics to implement very fast, reliable network How FDDI works:- • Token passing scheme • FDDI token passing • Transmitting frames • Synchronous frames • Multi-frame dialogs • Dual counter- rotating rings

  17. ATM(Asynchronous Transfer Mode): • Definition: • Standard switching techniques • Uses asynchronous time-division multi-plexing • Types of Network traffic: • Audio(Voice telephone over short and long distances) • Video (Cable television) • Data (Computer communications in LAN and WAN enviroments)

  18. How ATM works:- • ATM communicates with cells • 53 octets long each cell • Indicates the path the data will flow through • Small cells are used to minimize the latency and make it easy to process Two types of ATM network:- • Permanent Virtual Circuit(PVC) • set-up once • allows communication between two devices • Switching d Virtual Circuit (SVC) • temporarily set-up • just for duration of communication

  19. Classes of service for ATM: • Circuit emulation with constant bit rate • Audio and/or video with a variable bit rate • Connection-oriented service for data transmission • Connectionless service for data transmission

  20. Data transmission speed for ATM:

  21. Apple Talk: • Definition: • Networking architecture • Built into every Macintosh computer • Introduced in 1983 Types of AppleTalk: • LocalTalk • EtherTalkand TokenTalk • Appleshare • Zones

  22. ARCNET: • Definition: • Widely-installed local area network • Managing line sharing among the workstations ARC net Environment: • Classified as a local area network or LAN • Introduced as an office automation LAN by Data point Corporation

  23. How ARC net works:- • ArcNet uses a token-passing access method • Star-bus topology passing data at 2.5 Mbps • Supports data transmission rates of 20 Mbps • ArcNet is a token-passing architecture

  24. THANKYOU

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