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Ethernet

Network Fundamentals – Chapter 9

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Physical and Data Link Features of Ethernet

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Repeaters

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Characteristics of Network Media used in Ethernet

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mini HUB

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Characteristics of Network Media used in Ethernet

CSMA/CD (ang. Carrier Sense Multiple Access / with Collision Detect)

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Bridges

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Tryby przekazywania ramek

� cut-through – najmniejsze opóźnienie, przesyła ramki bezzwłocznie bez sprawdzania ich poprawności

� store and forward – największe opóźnienie, przed przesłaniem sprawdza sumy kontrolne nadesłanych ramek

� fragment free – rozwiązanie pośrednie, sprawdza wyłącznie poprawność nagłówka ramki (po 64 Bajcie)

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

Żeby osiągnąć cel, Ethernetowe przełączniki LAN wykonują pięć podstawowych operacji:

� Uczenie się (ang. Learning)

� Starzenie się (ang. Aging)

� Zalewanie (ang. Flooding)

� Selektywne przekazywanie

� Filtrowanie

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Physical and Data Link Features of Ethernet

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Explain the Address Resolution Protocol (ARP) process.

Protokół ARP dostarcza dwóch podstawowych funkcji:•Odwzorowanie adresów IPv4 na adresy MAC•Utrzymywanie podręcznej pamięci odwzorowania

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Explain the Address Resolution Protocol (ARP) process.

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Explain the Address Resolution Protocol (ARP) process.

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Explain the Address Resolution Protocol (ARP) process.

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Explain the Address Resolution Protocol (ARP) process.

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Explain the Address Resolution Protocol (ARP) process.

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Explain the Address Resolution Protocol (ARP) process.

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