osi transport layer - pld linuxcarme.pld-linux.org/.../pdf/ch04_presentation_en-pl.pdf ·...
TRANSCRIPT
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OSI Transport Layer
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1Version 4.0
Network Fundamentals – Chapter 4
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OSI Transport Layer
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2Version 4.0
Network Fundamentals – Rozdział 4
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Objectives� Explain the role of Transport Layer protocols and
services in supporting communications across data networks.
� Analyze the application and operation of TCP mechanisms that support reliability.
3© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
� Analyze the application and operation of TCP mechanisms that support reassembly and manage data loss.
� Analyze the operation of UDP to support communicate between two processes on end devices.
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Cele� Wyjaśnij rolę protokołów i usług warstwy
transportowej jakie pełnią w procesie komunikacji w sieciach danych.
� Przeanalizuj mechanizmy TCP, które zapewniają jego rzetelność działania.
4© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
� Przeanalizuj mechanizmy TCP, które obsługują odtworzenie odpowiedniej kolejności segmentów oraz utratę danych.
� Przeanalizuj mechanizmy UDP, które zapewniają komunikację między dwoma procesami na hostach.
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Transport Layer Role and Services� Explain the purpose of the Transport layer
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Zadania i usługi warstwy transportowej� Wyjaśnij rolę warstwy transportowej
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Transport Layer Role and Services� Major functions of the transport layer and the role it
plays in data networks
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Zadania i usługi warstwy transportowej� Główne funkcje warstwy transportowej i zadania jakie
spełnia w sieciach danych
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Transport Layer Role and Services� Supporting Reliable Communication
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Zadania i usługi warstwy transportowej� Zapewnienie niezawodnej komunikacji
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Transport Layer Role and Services� Identify the basic characteristics of the UDP and TCP
protocols
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Zadania i usługi warstwy transportowej� Zauważ podstawowe cechy protokołów UDP and TCP
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Transport Layer Role and Services� Identify how a port number is represented and describe
the role port numbers play in the TCP and UDP protocols
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Zadania i usługi warstwy transportowej� Opisz rolę segmentów w warstwie transportowej i dwa
podstawowe sposoby znakowania ich w celu odtworzenia kolejności ich wysyłania
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Application and Operation of TCP Mechanisms� Trace the steps that show how the TCP reliability
mechanism works as part of a session
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Implementacja i działanie mechanizmów TCP� Prześledź kroki które pokazują jak działa mechanizm
rzetelności TCP jako składnik sesji połączeniowej
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Application and Operation of TCP Mechanisms� Describe the role of port numbers in establishing TCP
sessions and directing segments to server process
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Implementacja i działanie mechanizmów TCP� Opisz rolę numerów portów w ustanawianiu sesji TCP i
kierowaniu segmentów do procesów serwera
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Application and Operation of TCP Mechanisms� Trace the steps in the handshake in the establishment
of TCP sessions
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Implementacja i działanie mechanizmów TCP� Prześledź etapy w inicjowaniu połączenia sesji TCP
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Application and Operation of TCP Mechanisms� Trace the steps in the handshake in the termination of
TCP sessions
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Application and Operation of TCP Mechanisms� Prześledź etapy w zamykaniu połączenia sesji TCP
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Managing TCP Sessions� Describe how TCP sequence numbers are used to
reconstruct the data stream with segments placed in the correct order
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Zarządzanie sesjami TCP� Opisz w jaki sposób używane są numery sekwencyjne
w celu rekonstrukcji strumienia danych z segmentów ustawionych we właściwej kolejności
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Managing TCP Sessions� Trace the steps used by the TCP protocol in which
sequence numbers and acknowledgement numbers are used to manage exchanges in a conversation
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Zarządzanie sesjami TCP� Prześledź etapy komunikacji protokołu TCP w których
używane są numery sekwencyjne i potwierdzenia do zarządzania wymianą danych w konwersacjach
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Managing TCP Sessions� Describe the retransmission remedy for lost data
employed by TCP
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Zarządzanie sesjami TCP� Opisz sytuację retransmisji dla utraconych danych
stosowaną przez TCP/IP
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Managing TCP Sessions� Describe the mechanisms in TCP that manage the
interrelationship between window size, data loss and congestion during a session
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Zarządzanie sesjami TCP� Opisz mechanizm TCP, który pokazuje powiązanie
między rozmiarem okna, utratą danych oraz przeciążeniem w sesji
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UDP Protocol� Describe the characteristics of the UDP protocol and
the types of communication for which it is best suited
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Protokół UDP� Opisz cechy charakterystyczne protokołu UDP i rodzaje
komunikacji dla których jest najbardziej odpowiedni
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UDP Protocol� Describe in detail the process specified by the UDP
protocol to reassemble PDUs at the destination device
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UDP Protocol� Opisz szczegółowo sposób w jaki protokół UDP
odtwarza kolejność PDUs na docelowym urządzeniu
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Protokół UDP� Describe how servers use port numbers to identify a
specified application layer process and direct segments to the proper service or application
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UDP Protocol� Opisz serwery używają numerów portów w celu
identyfikacji procesu w warstwie aplikacji do którego mają przekazać segmenty
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UDP Protocol� Trace the steps as the UDP protocol and port numbers
are utilized in client-server communication
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Protokół UDP� Prześledź etapy używania przez protokół UDP
numerów portu w komunikacji typu klient-serwer
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Summary
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Podsumowanie
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41© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public