differences osi layer and internet layer

OSI REFERENCE MODEL LAYERIn the OSI reference model there are seven layers, where each layer has a different network functions:Layer 7. ApplicationLayer 6. PresentationLayer 5. SessionLayer 4. TransportLayer 3. NetworkLayer 2. Data linkLayer 1. Physical
Application layer FUNCTION
Application layer (OSI Layer 7) is the OSI layer closest to the user; provide network services to user applications. In contrast to the other layer, Layer 7 does not provide a service for other OSI layers. Examples of these applications are spreadsheet programs, word processing, and bank terminal. Layer 7 establish the desired communication partner, establish and synchronize deal for error recovery procedures and control the integrity of the data. If you want to remember Layer 7 with a few words, think about browsers.
6 OSI LAYER FUNCTIONS
How data is converted and formatted for data transfer. Examples of ASCII text format conversion for documents,. GIF and JPG for images. This layer performs code conversion, data translation, encryption and conversion.
OSI LAYER FUNCTIONS 5
Session layer (OSI Layer 5) establish, manage and terminate sessions between two communicating hosts. Layer 5 Layer 6 provides services for and synchronizes dialogue between two Layer 6 and organize their data exchange. Besides manage sessions, Layer 5 provides equipment for efficient data transfer, class of service and exception reports problems Layer 5, 6 and 7. If you want to remember Layer 5 in a few words, think of dialogue and conversation (conversation).
OSI Layer 4 FUNCTION
Transport layer (OSI layer 4) create a segment of data to the host system which sends then collected back into the flow of data to the host system receives. In particular Layer 4 transport ensures between two hosts. In providing communication services, Layer 4 establish, maintain and terminate virtual circuits. In providing reliable service, using Layer 4 transport error detection-and-recovery and information flow control. If you want to remember Layer 4 in a few words, think about the quality of service and reliability.
OSI LAYER 3 FUNCTION
Network layer (OSI Layer 3) is a complex layer that provides an addressing scheme, connectivity and path selection (path selection) between two host systems that may be located on geographically separated networks. If you want to remember Layer 3 with ease, think about the selection of tracks, routing (routing), and addressing (addressing).
2 OSI LAYER FUNCTIONS
The data link layer (OSI Layer 2) provides reliable transit of data across a sambugan direct (physical link). In doing this, Layer 2 using physical addressing (physical addressing), network topology, network access, error notification (error notification), the sequential delivery of frames and flow control. If you want to remember Layer 2 easily, think about the frame and media access control (media access control).
OSI LAYER FUNCTIONS 1
Physical layer (OSI Layer 1) defines the functional specifications, procedural, mechanical and electrical to enable, maintain and lethal direct connection between the two systems. For example, voltage levels, timing of voltage changes, data rate, maximum shipping distances, physical connectors etc.. If you want to remember Layer 1 is easy, think about the signaling and media.
ENKAPULASI DATA
Encapsulation wraps data with the necessary protocol information before it is sent. Thus, when moving down through the OSI layers, packets received header, trailer, and other information. Five steps for the conversion of data encapsulation:- Make data
- Enter the data in the segment
- Enter the segment in a packet or datagram
- Enter the package in the frame
- Converting frames to pattern 1 and 0 (bit)
REFERENCE MODEL TCP / IPAlthough the OSI reference model is more commonly used but technically and historically, the standard reference model of the Internet is the Transmission Control Protocol / Internet Protocol (TCP / IP). This model has 4 layers:- Application- Transport- Internet- Network
· 4 LAYER FUNCTION TCP / IP
Application layer (Layer 4) TCP / IP model struggling with a business presentation, encoding and dialog control. TCP / IP combines the session, presentation and application in a single layer and assumes the data is ready encapsulated on the next layer.
· FUNCTION LAYER 3 TCP / IP
Transport layer (layer 3 TCP / IP) struggling with the quality of service matters of reliability, flow control and error correction. One of the protocol, transmission control protocol (TCP), provides a flexible and perfect for a reliable communications network, well-flowing, low-error. TCP dialogue between the sender and the receiver when the data encapsulated in the segment. TCP is a connection-oriented protocol, meaning that segment moving back and forth between the two hosts to inform them that the connection occurs during a specific time (packet switching).
· FUNCTION LAYER 2 TCP / IP
Internet layer (Layer 2 TCP / IP) function to send packets between different networks and determine the path taken. Specific protocol layer is the Internet protocol (IP). Best path determination and packet switching occur at this layer.
· LAYER FUNCTIONS 1 TCP / IP
Network layer (Layer 1 TCP / IP) layer is also called host-to-network. This layer provides everything needed to make the connection data packets directly (physical link) including details of LAN and WAN technologies and all the details in the Physical and Data link layer (Layer 1 and Layer 2 OSI).