SDN

SDN can stand for:

• Software-defined networking, is an approach to computer networking that allows network administrators to manage network services through abstraction of lower level functionality
• S4C Digital Networks, a company that operates Multiplex A, one of the six groups of channels on digital terrestrial television in the United Kingdom
• SAP Developer Network, an online community for SAP developers
• Sandane Airport, Anda, an airport in the Gloppen municipality in Sogn og Fjordane, Norway, opened in 1975.
• Scottish Daily News, a left-of-centre daily newspaper published in Glasgow between May 5 and November 8, 1975
• Scottish Digital Network, a planned new public service broadcaster and online services provider in Scotland
• Sexually dimorphic nucleus, a cluster of cells in the brain that is believed to be related to sexual behavior in animals
• Specially Designated Nationals, individuals and organizations with whom United States citizens and permanent residents are prohibited from doing business
• Student Doctor Network, a nonprofit educational organization founded in 1999 for prehealth and health professional students in the US and Canada
• Subdeacon, a title used in various branches of Christianity
• Sudan, a country in northeastern Africa
• League of Nations, abbreviation in many official languages of the League; e.g., Société des Nations (French)
• Serial Date Number is sometimes used to refer to Julian day, which is the count of days since January 1, 4713 BC (in proleptic Julian calendar).