Slides on general networking topics.
OSI (Open System Interconnection) was an industry wide attempt to standardize the mushrooming number of incompatible networking protocol suites in the early days of the Internet. Despite backing from industry heavy-weights, the OSI protocol suite was not accepted by the market and was eventually supplanted by the Internet protocol suite around TCP/IP. These days OSI is usually referred to as the reference protocol layer model with seven layers (physical, data link, network, transport, session, presentation and application). Typically the upper three layers are coalesced into one application layer. In modern operating systems, layer 1 through 4 run in the kernel while the upper layers run in user space.
Read More Download PDFNetworking is a term that subsumes various technologies and protocols for transferring data from one place to another by means of a transmission network. While every technology like TCP/IP, Ethernet, SDH, GSM, VSAT etc. has its own zoo of terms and acronyms, there are more fundamental concepts and terms common to the different technologies and protocols. The goal of this document is to explain the gist of the these more common networking terms and concepts. These explanations complement typical glossaries with illustrations.
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