Exploration Network Chapter 9 - PLD...
Transcript of Exploration Network Chapter 9 - PLD...
© 2007 Cisco Systems, Inc. All rights reserved. Cisco PublicITE PC v4.0Chapter 1 1
Ethernet
Network Fundamentals – Chapter 9
ITE PC v4.0Chapter 1 2© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
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
ITE PC v4.0Chapter 1 27© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
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.
ITE PC v4.0Chapter 1 40© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Explain the Address Resolution Protocol (ARP) process.
ITE PC v4.0Chapter 1 41© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Explain the Address Resolution Protocol (ARP) process.
ITE PC v4.0Chapter 1 42© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Explain the Address Resolution Protocol (ARP) process.
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