Passing data with OSI modle Essay Example | Topics and Well Written Essays - 500 words

Passing data with OSI modle - Essay Example formation relayed from a computer system passes through the application layer in its system which in turn transmits the same information to the presentation layer and eventually to the session layer and so down the physical layer. The physical layer places the information in physical network radium and sent to the next computer system through the medium (Lathem 6). The physical phase in the receiving computer removes the information from the physical network medium and is received across the receiving computer system (Lathem 6). The physical layer of this computer passes the information upwards to the data link layer 2, which then passes on to the network layer 3 and so on until it reaches the application layer of the computer system. Eventually the application layer of the receiving computer system passes the information to its application program to finish the communication process (Lathem 6). Encapsulation process involves transmission of information that goes down the OSI model in the computer system in which the information originates from (Whitaker 44). The application layer which has the user interface passes data to the presentation layer and eventually to the session layer. There is extra information added by these three layers compared to the original information (Kasera 18). The new information is then passed on to the transport level in which information is broken down into smaller particles known as segments. These segments are well aligned to enable a stream of the same information to the recipient. The receiving layer receives information from the transport layer in segments that were subdivided (Whitaker 44). Network addressing and routing is done to the segments through the internet network. The data at this level includes the transport header and the upper information known as a packet (Kasera 18). The packets are added with an IP header of the network lay er then send to the Data link layer. The data link layer also transmits each packet in