OSI REFERENCE MODEL

Definition

Standard Model that represented of communicate network devices and network that be developed by International Standard Organization (ISO)

The Purpose of OSI Model:

To help engineer to know, use, and design from data process.

OSI Layer:

Layer 7(Application)

Function: Serve with application that connect direct to the user

Protocol: File transfer, e-mail, and access to database

Layer 6 (Presentation)

Function: compression and encryption data

Protocol: ASCII, EBCDIC, MIDI, MPEG,TIFF, JPEG

Layer 5 (Session)

Function: Coordinating communication between system.

Protocol:SQL, NETBEUI, RPC, XWINDOES

Layer 4(Transport)

Function: send packet data without fault and without duplication

Protocol: TCP, UDP,SPX

Layer 3(Network)

Function: determine the packet data track and continue to the next device.

Protocol: IP, IPX, ARP, RARP, ICMP, RIP, OSFT, BGP

Layer 2 (Data Link)

Function: Manage the binary data (0 and 1) to be logical group

Protocol: SLIPP, PPP,MTU

Layer 1 (Physical)

Function: transmit binary data pass through communication line.

Protocol: 10 BaseT, 100 BaseTX, HSSI, V.35, X.21