For example, browsers use HTTP protocol to fetch websites from webservers. At the receiving end, the process is reversed, with headers being stripped off at each layer. Header and trailer added by a layer in the sending computer can be removed only by the peer layer in the receiving computer. The TCP/IP model has four layers. This tutorial is the second part of the article. The difference between encapsulation and decapsulation is that, in encapsulation, the data is moving from upper layer to the lower layer, and  each layer includes a bundle of information called a header along with the actual data while in decapsulation, the data is moving from the lower layer to the upper layers, and each layer unpacks the corresponding headers to obtain the actual data. Now, encapsulation and decapsulation are a process that is used to package data for transmission or reception. This packaging of data is called encapsulation. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. That can create compatibility issues. Following figure shows the encapsulation and de-encapsulation in OSI model. This tutorial is the fourth part of the article. At the end of the process, the frame is converted to a stream of bits that is then transmitted to the receiving computer… Data Encapsulation and De-encapsulation Explained, We do not accept any kind of Guest Post. Data link layer receives packets from network layer. Network models are used to standardize network communication. This tutorial explains data encapsulation and de-encapsulation in detail with examples. Terms of Use and Privacy Policy: Legal. Packets are handed down to the data link layer. This process is known as Decapsulation. Finally, the segment reaches the application layer. The email should pass the layers transport layer, internet layer and network access layer in order, using different protocols and out of a computer using wireless or wired network interface. Encapsulation process takes place in the sending computer while the de-encapsulation process takes place in the receiving computer. When reaching each layer, the information is added to the data. 6. Now it is segmented and contains data and TCP/UDP  header. Her areas of interests in writing and research include programming, data science, and computer systems. Transport layer breaks the received data stream from upper layers into smaller pieces. On a given network device, it will likely provide some form of network stack. This unpacking of data in each layer is known as the decapsulation. Encapsulation and decapsulation. Configure DHCP Snooping on Cisco Switches, How to Configure DHCP Relay Agent on Cisco Routers, How to Configure DHCP Server on Cisco Routers, Configure DHCP Server for multiple VLANs on the Switch, How to Configure DHCP Server on Cisco Switches, DHCP Configuration Parameters and Settings Explained. Data Encapsulation and Decapsulation in Networking. Decapsulation occurs in the destination computer. Following table lists the terms used by layers in both models to represent the encapsulated data. Then the email travels through the network and comes to the destination. In original TCP/IP model the term packet is mentioned as the term datagram. TCP/IP Decapsulation mail us ComputerNetworkingNotes@gmail.com. The header contains information that is required for switching such as source hardware address and destination hardware address. Network layer creates a header for each received segment from transport layer. Then, the email goes from network access layer, internet layer and transport layer and to the application layer in order. Therefore, open standard network models were improved. Data De-Encapsulation Process. Available here, 1.’UDP encapsulation’By Cburnett, (CC BY-SA 3.0) via Commons Wikimedia, Filed Under: Networking Tagged With: Compare Encapsulation and Decapsulation, Decapsulation, Decapsulation Function, Decapsulation Occurrence, Encapsulation, Encapsulation and Decapsulation Differences, Encapsulation and Decapsulation Similarities, Encapsulation Function, Encapsulation Occurrence, Encapsulation vs Decapsulation. What is Encapsulation EHacking course teach you fundamentals of computer networking online training, online computer networking classes & how computer networks work, designed for Non. Data encapsulation in computer networks is performed at sender side while data packet is transmitted from source host to destination host. When the data is moving from upper layer to the lower layer according to a network model, each layer includes a bundle of information called a header along with the actual data. Just like with the TCP/IP layers, each OSI layer asks for services from the next lower layer. This tutorial is the third part of the article. The data can be sent to the destination using the network. After encapsulation, each layer uses a specific name or term to represent the encapsulated data. Data encapsulation in the OSI model. The request message “request,hostname” initiated by the process “Client” will not be sent to the receiver process “Server” arbitraily. Encapsulation and Decapsulation are two terms related to passing data through each layer. When there is a large number of hosts, the network becomes complex, connecting different computers increases the incompatibility. 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