OSI Data Link Layer - PLD...

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OSI Data Link Layer © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Version 4.0 Network Fundamentals – Chapter 7

Transcript of OSI Data Link Layer - PLD...

Page 1: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

OSI Data Link Layer

© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1Version 4.0

Network Fundamentals – Chapter 7

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Warstwa Łącza danych modelu OSI

© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2Version 4.0

danych modelu OSI

Network Fundamentals – Rozdział 7

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Objectives� Explain the role of Data Link layer protocols in data transmission.

� Describe how the Data Link layer prepares data for transmission on network media.

� Describe the different types of media access control methods.

� Identify several common logical network topologies and describe how the logical topology determines the media access control

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how the logical topology determines the media access control method for that network.

� Explain the purpose of encapsulating packets into frames to facilitate media access.

� Describe the Layer 2 frame structure and identify generic fields.

� Explain the role of key frame header and trailer fields including addressing, QoS, type of protocol and Frame Check Sequence.

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Cele� Wyjaśnij rolę protokołów warstwy Łącza danych w transmisji.

� Opisz jak warstwa Łącza danych przygotowuje dane do wysyłki.

� Opisz różne metody dostępu do mediów.

� Zademonstruj kilka rodzajów topologii logicznych i opisz jak topologia logiczna wpływa na metodę dostępu do mediów.

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� Wyjaśnij przyczynę enkapsulacji pakietów w ramki jako ułatwienie dostępu do mediów.

� Opisz budowę ramki warstwy drugiej z uwzględnieniem wzorcowych pól.

� Wyjaśnij rolę kluczowych pól nagłówka i zakończenia ramki, a w szczególności pól adresów, QoS, typu protokołów oraz FCS.

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Data Link Layer – Accessing the Media� Describe the service the Data Link Layer provides as it

prepares communication for transmission on specific media

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Warstwa Ł ącza danych – dost ęp do mediów� Wyjaśnij zadanie warstwy Łącza danych poprzez

przygotowanie transmisji w określonych mediach

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Data Link Layer – Accessing the Media� Describe why Data Link layer protocols are required to

control media access

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� Wyjaśnij dlaczego protokoły warstwy Łącza danych są potrzebne do kontroli dostępu do mediów

Warstwa Ł ącza danych – dost ęp do mediów

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Page 9: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Data Link Layer – Accessing the Media� Describe the role of framing in preparing a packet for

transmission on a given media

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Warstwa Ł ącza danych – dost ęp do mediów� Opisz rolę dzielenia pakietu na ramki w celu transmisji

w określonym medium

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Data Link Layer – Accessing the Media� Describe the role the Data Link layer plays in linking the

software and hardware layers

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Warstwa Ł ącza danych – dost ęp do mediów� Opisz rolę warstw Łącza danych jako spoiwa między

warstwami programowymi a sprzętowymi

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Data Link Layer – Accessing the Media� Identify several sources for the protocols and standards

used by the Data Link layer

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Warstwa Ł ącza danych – dost ęp do mediów� Podaj klika źródeł powstawania standardów dla

protokołów warstwy Łącza danych

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Page 15: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Explain the necessity for controlling access to the

media

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Metody dost ępu do mediów� Wyjaśnij potrzebę kontroli dostępu do mediów

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Media Access Control Techniques� Identify two media access control methods for shared

media and the basic characteristics of each

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Page 18: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Metody dost ępu do mediów� Podaj i scharakteryzuj dwie metody dostępu do

współdzielonego medium

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Media Access Control Techniques� Define Full Duplex and Half Duplex as it relates to

Media Access Control for non-shared media

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Page 20: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Metody dost ępu do mediów� Zdefiniuj full-duplex i half-duplex jako dostęp do nie-

współdzielonych mediów

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Page 21: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Describe the purpose of a logical topology and identify

several common logical topologies

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Metody dost ępu do mediów� Opisz cel stworzenia topologii logicznych i wymień ich

kilka rodzajów

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Page 23: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Contrast logical and physical topologies

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Metody kontroli dost ępu do mediów� Porównaj technologie logiczne i fizyczne

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Page 25: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Identify the characteristics of point-to-point topology

and describe the implications for media access when using this topology

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Metody kontroli dost ępu do mediów� Scharakteryzuj topologię punkt – punkt i opisz

konsekwencje jej stosowania

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Page 27: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Identify the characteristics of multi-access topology and

describe the implications for media access when using this topology

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Page 28: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Metody kontroli dost ępu do mediów� Scharakteryzuj topologię wielodostępową i opisz

konsekwencje jej stosowania

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Page 29: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Techniques� Identify the characteristics of ring topology and describe

the implications for media access when using this topology

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Page 30: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Metody kontroli dost ępu do mediów� Scharakteryzuj topologię pierścienia i opisz

konsekwencje jej stosowania

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Page 31: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Addressing and Framing Data� Describe the purpose of encapsulating packets into

frames to facilitate the entry and exit of data on media

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Page 32: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Opisz cel enkapsulacji pakietów w ramki jako ułatwienie

umieszczenia i odczytania danych z medium

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Page 33: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Addressing and Framing Data� Describe the role of the frame header in the Data Link

layer and identify the fields commonly found in protocols specifying the header structure

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Page 34: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Opisz rolę nagłówka ramki w warstwie Łącza danych i

opisz standardowe pola, które się w nim znajdują

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Page 35: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Addressing and Framing Data� Describe the role of addressing in the Data Link layer

and identify cases where addresses are needed and cases where addresses are not needed

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Page 36: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Opisz rolę adresów w warstwie Łącza danych i wskaż

przypadki kiedy adres jest konieczny a kiedy zbędny

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Page 37: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Media Access Control Addressing and Framing Data� Describe the importance of the trailer in the Data Link

layer and its implications for use on Ethernet, a "non-reliable" media

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Page 38: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Opisz wagę końca ramki warstwy Łącza danych i skutki

jego użycia w mediach „non-reliable” jak np. Ethernet

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Page 39: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Dodatkowe:

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Page 40: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Adresacja i „ramkowanie” warstwy Ł ącza danych� Dodatkowe:

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Adresacja i „ramkowanie” warstwy Ł ącza danych� Dodatkowe:

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Page 42: OSI Data Link Layer - PLD Linuxcarme.pld-linux.org/.../presentations/pdf/Ch07_presentation_en-pl.pdf · Objectives Explain the role of Data Link layer protocols in data transmission.

Summary

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Podsumowanie

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