Network models

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OSI

It stands for Open System Interconnection
It is related and logical layout that defines network communication used by systems open to interconnection and communication with other system

Application  - High-level including resource sharing, remote file access
                     - Interact with the network, end users view the  message or information
Protocol       - HTTP, FTP, SMTP
                    - Data

Presentation - Translation of data between a networking services and an application
                     - to check what data is being send
Protocol       - JPEG, GIF, MPEG
                     - Data

Session        - Managing communication sessions
                    - To make sure each sender and receive agree.
                    - Manages and terminate connection
Protocol      - AppleTalk, Socket
                   - Data

Transport     - Reliable transmission of data segments between points on a network
                     - To make sure there is no error and all message is being receive
Protocol       - TCP, ICMP, SPX
                     - Segments

Network      - Structuring and managing a multi-node network, including addressing, routing and        traffic control
                     - The layer to check if the message being receive
                     - Responsible for routing packets
Protocol      - IP Address
                    - Packets

Data link    - Reliable transmission(sending) of data frames between two nodes connected by a physical layer
                   - Example make sure your message is being send and receive
Protocol     - Mac address
                  - Frames (Mac)

Physical     - Transmission and reception of raw bit streams over a physical
                   - Convert message to binary
Protocol     - Ethernet, Token Ring
                   - Bits



Please do not throw Sambal Pusu away from bawah
All people seem to need data processing from atas


TCP/IP

It stands for Transmission Control Protocol
It separates network into 4 layers. Each layer performs a specific function for communication to take place over the network.


Application   - Represents data to the user and controls dialogue
                      - It is the user interact with the network
Protocol        - Http, ftttp, telent, NTP, DHCP, PING
                     - Data

Transport      - Supports communication between diverse devices across diverse network
                     - Provides end to end data delivery services
Protocol        - TCP,UDP
                     - Segments

Internet         - Determines the best path through the network
                      - It contains the IP address of the sender and IP address of receiver and the message
Protocol        - IP, ARP, ICMP, IGMP
                      - Packets

Host- to- network layer - Controls the hardware devices and media that make up the network
                       - To add the message into the cable and making sure to get back the message
Protocol         - Ethernet
                       - Bits




OSI is different in local area network and for TCP/IP if it is connect to internet



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