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397121
Chapter 2-OSI Model
Description
Mind Map on Chapter 2-OSI Model, created by Joshua Snider on 28/11/2013.
Mind Map by
Joshua Snider
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Joshua Snider
over 10 years ago
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Resource summary
Chapter 2-OSI Model
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
The actual "wire". Data called bits
DEVICES: ethernet cable, IR signals, hubs, extenders
Media Access Control
Gives the physical MAC addresses
Logical Link Control
ID's network layer protocols and encapsulating
DEVICES: Bridges, Switches. Data called frames
IP/network addressing. Data called packets
DEVICES: Routers
Chooses TCP or UDP and responsible for reliable delivery of UDP. Data called Segments
Syn, Syn/Ack, Ack
Flow Control
Windowing
Acknowledgements
Sets up the conversation between the two hosts. Responsible for keeping different applications' data separate. Data called PDU
Prepares data to be properly formatted for presentation. Also, compression and encryption. Data called PDU
Evaluates if resources are available and allocates if they are. Data called Protocol Data Unit (PDU)
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