OSI MODEL AND ITS PROTOCOL
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The document outlines the OSI model, introduced by the International Standards Organization (ISO) in the late 1970s, detailing its seven layers: physical, data link, network, transport, session, presentation, and application. Each layer has specific functions and associated protocols, facilitating error-free data transmission, routing, dialog control, and user service interactions. The document provides a comprehensive overview of the purpose of each layer and examples of protocols utilized within them.
OSI MODEL AND ITS PROTOCOL
- 1. OSI MODEL AND ITS PROTOCOL By IKHLAS RAHMAN DAFFODIL INTERNATIONAL UNIVERSTY
- 2. Content OSI MODEL Physical LayerAND ITS PROTOCOL Data Link Layer AND ITS PROTOCOL Network LayerAND ITS PROTOCOL Transport LayerAND ITS PROTOCOL Session Layer AND ITS PROTOCOL Presentation LayerAND ITS PROTOCOL Application Layer AND ITS PROTOCOL
- 3. Established in 1947, the International Standards Organization (ISO) is a multinational body dedicated to worldwide agreement on international standards. An ISO standard that covers all aspects of network communications is the Open Systems Interconnection (OSI) model. It was first introduced in the late 1970s. OSI MODEL Note: ISO is the organization. OSI is the model.
- 4. Physical Layer Data Link Layer Network Layer Transport Layer Session Layer Presentation Layer Application Layer Seven layers of the OSI model
- 5. Physical Layer Transfer Binary Bit stream from source to destination as a electrical signal. Encode bits into signals Translation of bits into signals Synchronization of bits Data Rate Topology Transmission mode Purpose
- 6. Physical Layer Protocol Digital Subscriber Line. Integrated Services Digital Network. Infrared Data Association. Universal Serial Bus. Bluetooth. Controller Area Network. Ethernet.
- 7. Data Link Layer Send blocks with necessary Responsible for error-free transmission over the physical media Assures error-free data submission to the Network Layer purpose The data link layer is responsible for moving frames from one hop (node) to the next.
- 8. Data Link Layer Protocol LLDP Link Layer Discovery Protocol PPP Point-to-Point Protocol Ethernet FDDI Fiber Distributed Data Interface Frame Relay ITU-T G.hn Data Link Layer
- 9. Network Layer purpose The network layer is responsible for the delivery of individual packets from the source host to the destination host. Address translation from logical to physical Routing of data Based on priority Best path at the time of transmission
- 10. CLNP Connectionless Networking Protocol EGP Exterior Gateway Protocol IPv4 Internet Protocol version 4 IPv6 Internet Protocol version 6 IPSec Internet Protocol Security ARPAddress Resolution Protocol RIP Routing Information Protocol Network link Layer protocol
- 11. The transport layer is responsible for the delivery of a message from one process to another. Transport Layer SegmentationOf Reassembly Connection Control Error Control Purpose
- 12. Transport Layer protocol ESP Encapsulating Security Payload over IP or IPSec SCTP Stream ControlTransmission Protocol SPX Sequenced Packet Exchange TCPTransmission Control Protocol UDP User Datagram Protocol DCCP Datagram Congestion Control Protocol
- 13. Session Layer The session layer is responsible for dialog control and synchronization. Synchronization between sender and receiver Assignment of time for transmission Start time End time etc. Purpose
- 14. Session Layer protocol NetBIOS, File Sharing and Name Resolution protocol - the basis of file sharing with Windows. NetBEUI, NetBIOS Enhanced User Interface NCP NetWare Core Protocol NFS Network File System SMB Server Message Block
- 15. Presentation Layer The presentation layer is responsible for translation, compression, and encryption. Translation Data translation Encryption Purpose
- 16. TLSTransport Layer Security Presentation Layer protocol
- 17. Application Layer The application layer is responsible for providing services to the user. Purpose • User application to network service interface • File request from server • E-mail services • etc.
- 18. ADC, A peer-to-peer file sharing protocol AFP,Apple Filing Protocol BACnet, BuildingAutomation and Control Network protocol BitTorrent, A peer-to-peer file sharing protocol DNS, Domain Name System DSM-CC Digital Storage Media Command and Control DSNP, Distributed Social Networking Protocol DHCP, Dynamic Host Configuration Protocol ED2K,A peer-to-peer file sharing protocol Finger, which gives user profile information FTP, FileTransfer Protocol HTTP, HypertextTransfer Protocol Application Layer protocol
- 19. Thanks.. The End