My InfoTech Journal: Decoding the Networking Enigma: OSI vs. TCP/IP Reference Models The OSI (Open Systems Interconnection) Reference Model and the TCP/IP (Transmission Control Protocol/Internet Protocol) Reference Model: The OSI Reference Model and the TCP/IP Reference Model are both conceptual frameworks used to understand and standardize how different networking protocols and technologies interact. Here are some areas of comparison: 1. Number of Layers: OSI Model : It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and TCP/IP Model : It has four layers: Network Interface, Internet, Transport, and Application. 2. L ayer Functionality: OSI Model : Tends to be more comprehensive and abstract, defining each layer's functions independently. TCP/IP Model : Reflects the actual implementation of the Internet and focuses on how protocols are used in practice. 3. Adoption / Use: OSI Model : Less commonly used in practice, but it is still valuab
My InfoTech Journal: Unpacking the OSI Model: Your Guide to Networking Layers The OSI (Open Systems Interconnection) reference model is a way to understand how different parts of computer networks communicate. Each layer having a specific job. 1. Physical Layer: This is the actual hardware, like cables and switches. Example: Ethernet cables connect devices in a network. 2. Data Link Layer: Ensures data is sent and received without errors within a local network. Example: Ethernet frames help in local data transfer. 3. Network Layer: Manages data routing between different networks. Example: IP (Internet Protocol) routers guide data between your home and a website. 4. Transport Layer: Ensures data arrives reliably and in order. Example: TCP (Transmission Control Protocol) guarantees error-free data transfer. 5. Session Layer: E stablishes, maintains, and ends connections between devices. Example: Setting up a video call on Skype. 6. Presentation Layer: Translates data into a format that