Sieci Komputerowe - Ksi™ga Eksperta

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Cz 1 Podstawy sieci .............................................................................................................................................................................8 Rozdzia 1 ABC sieci...........................................................................................................................................................................8 1.1.1 Ewolucja sieci ...........................................................................................................................................................................8 1.1.2 Organizacje ustanawiajce standardy ........................................................................................................................................9 1.1.2.1 ANSI.............................................................................................................................................................................10 1.1.2.2 IEEE .............................................................................................................................................................................10 1.1.2.3 ISO................................................................................................................................................................................10 1.1.2.4 IEC................................................................................................................................................................................10 1.1.2.5 IAB ...............................................................................................................................................................................10 1.1.3 Model referencyjny OSI ..........................................................................................................................................................10 1.1.3.1 Warstwa 1: warstwa fizyczna .......................................................................................................................................11 1.1.3.2 Warstwa 2: warstwa cza danych ................................................................................................................................12 1.1.3.3 Warstwa 3: warstwa sieci..............................................................................................................................................12 1.1.3.4 Warstwa 4: warstwa transportu.....................................................................................................................................12 1.1.3.5 Warstwa 5: warstwa sesji..............................................................................................................................................12 1.1.3.6 Warstwa 6: warstwa prezentacji ...................................................................................................................................12 1.1.3.7 Warstwa 7: warstwa aplikacji .......................................................................................................................................12 1.1.3.8 Zastosowania modelu ...................................................................................................................................................13 1.1.4 Podstawy sieci .........................................................................................................................................................................13 1.1.4.1 Sprztowe elementy skadowe ......................................................................................................................................14 1.1.4.1.1 Urzdzenia dostpu..................................................................................................................................................14 1.1.4.1.2 Wzmacniaki.............................................................................................................................................................14 1.1.4.2 Programowe elementy skadowe ..................................................................................................................................15 1.1.4.2.1 Sterowniki urzdze ................................................................................................................................................15 1.1.4.2.2 Oprogramowanie komunikacyjne............................................................................................................................15 1.1.4.2.3 Skadanie elementw w sie....................................................................................................................................16 1.1.4.2.4 Sieci LAN bez wzmacniakw..................................................................................................................................16 1.1.4.2.5 Sieci oparte na koncentratorze (koncentratorowe)...................................................................................................16 1.1.5 Podsumowanie ........................................................................................................................................................................18 1.2 Rozdzia 2 Typy i topologie sieci LAN .............................................................................................................................................18 1.2.1 Urzdzenia przyczane do sieci LAN ....................................................................................................................................18 1.2.2 Typy serwerw........................................................................................................................................................................18 1.2.2.1 Serwery wydrukw .......................................................................................................................................................19 1.2.2.2 Serwery aplikacji ..........................................................................................................................................................20 1.2.3 Typy sieci ................................................................................................................................................................................21 1.2.3.1 Sieci rwnorzdne (kady-z-kadym)...........................................................................................................................21 1.2.3.2 Sieci oparte na serwerach (klient-serwer) .....................................................................................................................22 1.2.3.3 Sieci mieszane ..............................................................................................................................................................24 1.2.4 Topologie sieci lokalnych........................................................................................................................................................24 1.2.4.1 Topologia magistrali .....................................................................................................................................................24 1.2.4.2 Topologia piercienia....................................................................................................................................................25 1.2.4.3 Topologia gwiazdy .......................................................................................................................................................26 1.2.4.4 Topologia przeczana ..................................................................................................................................................27 1.2.4.5 Topologie zoone.........................................................................................................................................................28 1.2.4.5.1 acuchy .................................................................................................................................................................28 1.2.4.5.2 Hierarchie ................................................................................................................................................................29 1.2.5 Obwary funkcjonalne sieci LAN.............................................................................................................................................31 1.2.5.1 Przyczanie stacji.........................................................................................................................................................31 1.2.5.2 Przyczanie serwera.....................................................................................................................................................31 1.2.6 Przyczanie do sieci WAN.....................................................................................................................................................31 1.2.7 Przyczanie do szkieletu ........................................................................................................................................................33 1.2.7.1 Szkielet segmentowy ....................................................................................................................................................34 1.2.7.2 Szkielet rwnolegy ......................................................................................................................................................35 1.2.8 Podsumowanie ........................................................................................................................................................................36 1.3 Rozdzia 3 Warstwa fizyczna.............................................................................................................................................................37 1.3.1 Warstwa 1: warstwa fizyczna .......................................