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CHAPTER AppleTalk an ArcNet Networks

CHAPTER AppleTalk an ArcNet Networks. Chapter Objectives. Discuss two other types of LANs that are not in the mainstream of networking Provide a basic understanding of networking Apple computers Familiarize oneself with Apple networking terms Describe the functional features of ArcNet.

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CHAPTER AppleTalk an ArcNet Networks

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  1. CHAPTER AppleTalk an ArcNet Networks

  2. Chapter Objectives • Discuss two other types of LANs that are not in the mainstream of networking • Provide a basic understanding of networking Apple computers • Familiarize oneself with Apple networking terms • Describe the functional features of ArcNet

  3. Chapter Modules • An Overview of Apple Networks • Apple Network Implementations • ArcNet

  4. MODULE An Overview of Apple Networks © N. Ganesan, All rights reserved.

  5. Module Objectives • Define AppleTalk • AppleTalk communication process • Terms used in Apple networking

  6. AppleTalk Defined • Introduced by Apple for Macintosh connectivity • Built-in Networking • NIC built-into Macintosh hardware • Apple OS has built-in networking features • Supports other computers as well

  7. AppleTalk Communication • Uses CSMA/CA • Collision Avoidance is the main difference from CSMA/CD • Basic operation • A workstation chooses an address from a list • Checks for availability • If available, assigns and uses the address for communication

  8. Apple Network Terminology • AppleTalk • LocalTalk • AppleShare • EtherTalk • TokenTalk

  9. AppleTalk • Refers to the Apple network architecture • Overall reference to Apple networking • Variations in the implementation exist

  10. END OF MODULE

  11. MODULE Apple Network Implementations © N. Ganesan, All rights reserved.

  12. Module Objectives • Define LocalTalk • Present a network configured based on LocalTalk • Define AppleShare and show an example of AppleShare implementation • Explain EtherTalk and TokenTalk and discuss their respective implementation requirements

  13. LocalTalk • Refers to the process of Apple Networking in terms of its components • LocalTalk components • Cables and cable extenders • Connector modules • NIC hardware is built-into Macintosh hardware

  14. A Sample LocalTalk Implementation Computer Computer Connector Module 8-pin Plug 8-pin plug. Plugs into built-in socket. Printer

  15. AppleShare • File server on the AppleTalk network • A print server is also available for functioning with the file server

  16. AppleShare Implementation Zone 3 Zone 2 Zone 1 Server Server Server

  17. EtherTalk • Designed to facilitate AppleShare connectivity over Ethernet • IEEE 802.3 compliance enforced • Enables AppleShare protcols to be carried over Ethernet cabling

  18. EtherTalk Implementation Requirements • EtherTalk NB card • EtherTalk (AppleTalk Phase 2 compatible) software • Cables, Connectors etc. • As applicable to Ethernet networks

  19. TokenTalk • Designed to facilitate AppleShare connectivity over Token Ring • IEEE 802.5compliance enforced • Enables AppleShare protcols to be carried over Token Ring cabling

  20. TokenTalk Implementation Requirements • TokenTalk NB card • TokenTalk (AppleTalk Phase 2 compatible) software • Cables, Connectors etc. • As applicable to Token Ring networks

  21. END OF MODULE

  22. MODULE ArcNet © N. Ganesan, All rights reserved.

  23. Module Objectives • Define ArcNet and indicate its topology • Discuss the access method and speed • Show an ArcNet implementation structure and its functioning • Discuss the implementation rules

  24. ArcNet Defined • A simple and inexpensive network developed by Datapoint Corporation in 1977 • Uses a token-passing access method over a star-bus topology

  25. Topology • Logical • Bus • Physical • Star

  26. Access Method and Speed • Baseband access • Token rotation • Combination of the Ethernet and Token Ring access mechanisms • Loose compliance with IEEE 802.4 • Speed • 2.5 Mbps, 20 M bps (ArcNet Plus)

  27. ArcNet Implementation Server Client Hub Client Client

  28. Token Rotation 2 Server Client 1 3 Hub 4 Client Client Note: Token rotation can be in the order 1 3 4 2 as well.

  29. Rules Pertaining to Cable Length • 2000’ coaxial cable, star topology • 1000’ coaxial cable, bus topology • 800’ for twisted pair

  30. Other Implementation Rules • Maximum number of computers in a segment • Depends on the cable • Minimum length between computers • Depends on the cable • Multiple segment network is not supported • Segments cannot be linked with ease

  31. Cables Used • Coaxial • 93 Ohm • Twisted-pair • Optical fiber

  32. END OF MODULE END OF CHAPTER

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