What is "sdn"

SDN can stand for:

• Software-defined networking, an approach to computer networking
• S4C Digital Networks, a company that operates television channels in the United Kingdom
• SAP Developer Network, an online community
• Sandane Airport, Anda, Norway
• Scottish Daily News, a newspaper published in 1975
• Scottish Digital Network, a planned new broadcaster and online services provider
• Sexually dimorphic nucleus, a cluster of cells in the brain
• Specially Designated Nationals, individuals and organizations with whom United States citizens and permanent residents are prohibited from doing business
• Student Doctor Network, an educational organization for prehealth and health professional students in the US and Canada
• Subdeacon, a title used in Christianity
• Sudan, a country in Africa
• League of Nations, Société des Nations in 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).