国家重点实验室 Name Definition Main features A local area network (LAN)is a the networking area Local area computer network that is local area network(LA interconnects computers within covering i from N#局域网， a limited area such as a several tens of 局部区域网络 residence,school,laboratory, meters to several in1980) university campus or office kilometers. building.Ethernet and Wi-Fi are the two most common technologies in use for it Metropolitan MAN provides the networking the networking area Area facilities that interconnects is a city,covering Network local area networks (LANs)in a from several to (MAN#,城域 city into a single larger one. several tens,even a 网)】 hundred kilometers.2020/4/23 Dr. Zhanqi XU, National Key Lab on ISN, Xidian University 16 Name Definition Main features Local area network(LA N# 局域网， 局部区域网络 in1980’)) A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. Ethernet and Wi-Fi are the two most common technologies in use for it. the networking area is local area , covering from several tens of meters to several kilometers. Metropolitan Area Network (MAN#, 城域 网) MAN provides the networking facilities that interconnects local area networks (LANs) in a city into a single larger one. the networking area is a city, covering from several to several tens, even a hundred kilometers