Network Protocols: Signature Edition (Mcgraw-Hill Signature by Matthew G. Naugle

By Matthew G. Naugle

The one community protocol reference of its style, this instruction manual information the most typical protocols at the moment in use by way of such a lot networked websites. utilizing a different one-chapter-per-protocol layout, the instruction manual covers delivery keep watch over Protocol/Internet Protocol (TCP/IP), Xerox community approach (XNS), net Packet Exchange/Sequence Packet trade (IPX/SPX), DECnet part IV/Local region shipping (LAT), IEEE 802.2, and Open structures Interconnection (OS/GOSIP). Explaining how those protocols function, the e-book is helping community managers, directors, and MIS staff/systems analysts totally comprehend the theories and practicalities for community protocol stacks.

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Additional info for Network Protocols: Signature Edition (Mcgraw-Hill Signature Series)

Example text

Only the first three cable types will be discussed here. The fiber standard for Ethernet will not be discussed here. Despite the changes in wiring, the access method defined for Ethernet remains unchanged; that is, the method defined in layer 2 of the OSI model has not been revised. The only thing that changes is the wiring methodology (layer 1 of the OSI model). This is a perfect example of why data communications systems rely on the OSI model for architecture. We can replace the physical layer of the model with something different and the remainder of the layers remain unchanged.

For distant sites, the user would mail the diskette. This was affectionately known as sneakernet. The LAN was introduced commercially in 1980, enhancing the capabilities of the personal computer (PC). A PC can connect to a LAN to enable the user to communicate with other PC users connected to the same LAN. Originally, a mainframe computer provided the connection to a LAN, and this created two logical connections for the user: mainframe access and the ability to communicate with other PC users directly on the LAN.

Next page > < previous page page_14 next page > Page 14 A network attachment is accomplished through the use of a transceiver cable and a transceiver (see Fig. 1-7). The Ethernet controller (the controller is the integral hardware device that allows a device to attach to and work on the network) cannot attach to the cable plant without the use of these devices. A transceiver (transmitter-receiver) is the intermediate device that transmits and receives the data from the Ethernet controller onto or from the cable plant.

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