Buzz
TCP/IP functions as a communication protocol facilitating server connections to the internet. In contrast, OSI serves as a gateway bridging networks and end-users. TCP/IP encompasses the Transmission Control Protocol (TCP) utilized on the internet and internet-based applications. Initially developed under a contract by the U.S. Department of Defense, this protocol has evolved to enable diverse devices to connect to the internet.
OSI stands for Open Systems Interconnection, a gateway developed by the International Organization for Standardization (ISO).
What sets OSI apart from TCP IP Model? Firstly, the implementation model over OSI and TCP IP Model is developed.
TCP/IP originates from implementing OSI model, leading to this innovation. OSI is developed as a reference model that can be used online. The model based on TCP/IP is developed, aiming for a model revolving around the internet. The model OSI is developed is a theoretical model rather than the internet.
TCP comprises 4 layers including: Link Layer (link layer), Internet Layer (network layer), Application Layer (application layer), and Transport Layer (transport layer)
Differences between OSI and TCP/IP
OSI gateway is developed based on a 7-layer model. It includes: Physical Layer (physical layer), DataLink Layer (data link layer), Network Layer (network layer), Transport Layer (transport layer), Session Layer (session layer), Presentation Layer (presentation layer), and last but not least, Application Layer (application layer).
Distinguishing OSI and TCP/IP
When it comes to overall reliability, TCP/IP is considered a more reliable choice compared to the OSI model. In most cases, the OSI model is referred to as a reference tool, an outdated model. OSI is also known for its strict protocols and boundaries. TCP/IP allows for 'loosening' of rules, providing general principles to be met.
Regarding the approach methods both employ, TCP/IP adopts a horizontal approach while the OSI model adopts a vertical approach.
An important point to note is that TCP/IP combines the session and presentation layers within the application layer. OSI seems to have a different approach, with different layers and each layer performing a specific function.
Also worth noting is the design when protocols are designed. In TCP/IP, protocols are designed first and then the model is developed. In OSI, model development precedes protocol development.
When it comes to communication, TCP/IP only supports connectionless communication originating from the network layer. Conversely, OSI seems to handle this quite well, supporting both wireless and routed connections in the network layer.
Last but not least is the dependency on protocols of TCP/IP and OSI. TCP/IP is a protocol-dependent model, whereas OSI is an independent protocol standard.
Summarizing the differences between OSI and TCP/IP Model:
- TCP stands for Transmission Control Protocol.
OSI stands for Open Systems Interconnection, connecting open systems.
- The TCP/IP model is developed based on objectives towards the internet model.
- TCP/IP comprises 4 layers, while OSI comprises 7 layers.
- TCP/IP is more reliable than OSI.
- OSI has strict boundaries; TCP/IP lacks strict boundaries.
- TCP/IP adopts a horizontal approach, OSI adopts a vertical approach.
- In the application layer, TCP/IP utilizes both the session and presentation layers.
- OSI employs different session and presentation layers.
TCP/IP develops protocols first, then models.
- OSI develops models first, then protocols.
TCP/IP provides support for connectionless communication in the network layer.
- In the network layer, OSI supports wireless and routed connections.
- TCP/IP relies on protocols, OSI is protocol-independent.
When using the Internet, you may already be familiar with the concepts of RJ45 and RJ48 network ports. To better understand and compare these two types, refer to the article comparing RJ45 and RJ48 network ports for valuable insights.
