AppleTalk and ArcNet Architectures

AppleTalk is the Apple network architecture and is included in the Macinstosh operating system software. This means that network capabilities are built into every Macintosh.  AppleTalk Phase2 is a later, enhanced release of AppleTalk. The architecture is a collection of protocols that correspond to the OSI model. AppleTalk networks are commonly referred to as LocalTalk networks. LocalTalk uses CSMA/CA as an access method in a bus or tree topology with STP, but will also accept UTP and fiber-optic cable. The features of Appletalk are: AppleShare, EtherTalk, and TokenTalk. The components of AppleTalk networks are cables, Connector modules, and Cable Extenders. ArcNet uses a token-passing access method in a star bus topology passing data at 2.5 Mbps. A successor to the original ArcNet, ArcNet Plus, supports data transmission rates of 20 Mbps. Because ArcNet is a token-passing arhictecture, a computer in an ArcNet must have the token in order to transmit data.  The token moves from one computer to the next according to their numerical order regardless of how they are placed on the network. The standard ArcNet packet contains: A destination address, A source address, and Data (up to 508 bytes).  Using UTO with either RJ-11 or RJ-45 connectors, there is a maximum cable distance of 244 meters between devices on both star and bus topologies.

Network Introduction Network Cabling Wireless Network Network Interface Card OSI Model Protocols Ethernet - Network architecture Token Ring - Network architecture AppleTalk and ArcNet - Network architectures Repeaters, Bridges, Routers, and Gateways E-mail Standards Modem & Async Comm. T1, T3, and Switched 56 Digital Connectivities Packet-Switching Network,Frame Relay and ATM ISDN & FDDI

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