Please enable JavaScript.
Coggle requires JavaScript to display documents.
OSI (Open System Interconnection) MODEL (4. Transport (Layer 4) (Provides…
OSI (Open System Interconnection) MODEL
4. Transport (Layer 4)
Provides transparent transfer of data
Protocol used TCP and UDP
End-to-end connections
Reliability
Flow control
Datagrams are called Segments
7. Physical (Layer 1)
Cable, connectors, hubs, repeater
Data is called Bits
Describes electrical and physical specification for devices
6. Data Link (Layer 2)
Provides connections between hosts on the same network
Datagrams are called Frames
Protocols used Ethernet and MAC Addresses
1. Application (Layer 7)
Netwrork application
File Transfer
Management
Web
Remote connection
Mail
User authentication
Human-Machine Interface
Protocol used HTTP, TELNET, FTP
Datagrams are called Upper Layer Data
2. Presentation (Layer 6)
Provide context for communication between layers (ASCII Characters)
Encryption and decryption
Part of Operating System
Compression
Protocol used SSL, TSL
Datagrams are called Upper Layer Data
3. Session (Layer 5)
Controls the dialogs between computers
Also controls duplexing, termination, and restarts
End-to-end encryption
Protocols used netbios and PPTP
Datagrams are called Upper Layer Data
5. Network (Layer 3)
Routing of packets
Provides connections between hosts on different networks
Datagrams are called Packets