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מודל osi

מודל osi. או : איך המידע עובר באינטרנט?. OSI Model. OSI Model. אושר רוצה לשלוח לתומר הודעה במסנג'ר. אושר. תומר. 7. Application. Layer 7: The Application Layer The application layer is the OSI layer that is closest to the user It provides network services to the user's applications.

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מודל osi

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  1. מודל osi או : איך המידע עובר באינטרנט?

  2. OSI Model

  3. OSI Model

  4. אושר רוצה לשלוח לתומר הודעה במסנג'ר אושר תומר

  5. 7 Application • Layer 7: The Application Layer • The application layer is the OSI layer that is closest to the user • It provides network services to the user's applications. • It differs from the other layers in that it does not provide services to any other OSI layer, but rather, only to applications outside the OSI model.

  6. Layer 6: The Presentation Layer • The presentation layer ensures that the information that the application layer of one system sends out is readable by the application layer of another system. • Responsible for compression and encryption 6 Presentation מה נשמע תומר איך הייתה בחינת פרק 2? DATA FORMAT Encryption\ Data Format Change גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?

  7. מה נשמע תומר איך הייתה בחינת פרק 2? (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) session עם משה session עם מוטי session עם תומר • Layer 5: The Session Layer • the session layer establishes, manages, and terminates sessions between two communicating hosts. Session 5 DIALOGUES

  8. שיחה עם תומר פרק 2? הייתה בחינת תומר איך מה נשמע (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) Segmentation 4 3 2 1 Transport • Layer 4: The Transport Layer • The transport layer segments data from the sending host's system. • Reassembles the data into a data stream on the receiving host's system. • Provides Reliability 4 QUALITY OF SERVICE RELIABILITY

  9. 3 הייתה בחינת To IP From IP 192.168.13.176 192.168.13.191 Send to internet IP uses in WAN traffic Network 3 ADDRESSING • Layer 3: The Network Layer • provides connectivity and path selection between two host systems that may be located on geographically separated networks. PATH SELECTION

  10. To Mac From Mac To IP From IP 1 192.168.13.176 192.168.13.191 מה נשמע 11-2D-34-56-F1-B2-33 C2-B1-44-11-23-A5-67 Send to LAN FRAMES • Layer 2: The Data Link Layer • The data link layer provides reliable transmit of data across a physical link. • The data link layer is concerned with physical (as opposed to logical). Frame (packet) MEDIA ACCESS CONTROL Data Link 2

  11. To Mac From Mac To IP From IP 1 C2-B1-44 192.168.13.176 192.168.13.191 מה נשמע F1-B2-33 Send to Media SIGNALS 010011010100100 • Layer 1: The Physical Layer • The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating, maintaining, and deactivating the physical link between end systems. 01001001 MEDIA Physical 1

  12. Send to NIC 010011010100100 SIGNALS From Mac To Mac To IP From IP 1 F1-B2-33 C2-B1-44 192.168.13.176 192.168.13.191 מה נשמע 192.168.13.176 F1-B2-33 01001001 1 Physical MEDIA

  13. From Mac To Mac To IP 1 From IP F1-B2-33 192.168.13.176 מה נשמע 192.168.13.191 C2-B1-44 Deencapsulation 192.168.13.176 F1-B2-33 Data Link 2 MEDIA ACCESS CONTROL

  14. To IP From IP 1 192.168.13.176 192.168.13.191 מה נשמע Deencapsulation Network 3 ADDRESSING PATH SELECTION

  15. 2 1 3 4 תומר איך מה נשמע הייתה בחינת פרק 2? Organizing segment מה נשמע תומר איך הייתה בחינת פרק 2? (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) QUALITY OF SERVICE Transport 4 RELIABILITY

  16. מה נשמע תומר איך הייתה בחינת פרק 2? (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) session עם רמי session עם אכרם session עם אושר Session 5 DIALOGUES

  17. 6 Presentation DATA FORMAT גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()? decryption\ Data Format Change מה נשמע תומר איך הייתה בחינת פרק 2?

  18. 7 Application

  19. תומר מחזיר תשובה לאושר במסנג'ר Layers 7-4 Layer 1 Layers 7-4 Layer 2 אושר Layer 2 תומר Layer 3 Layer 1

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