Metropolitan Area Network In a city is established within the scope of the computer network, the abbreviation MAN. Belong to broadband LAN. Because use has active exchange of components of the LAN technology, network transmission delay is lesser, its transmission medium mainly USES the optical fiber, transmission rate in l00 MBPS above. A MAN is used as a backbone important USES, through which will be located at different sites within the city with - the mainframe, database, and LAN and link up with each other etc, this and WAN role similarities, both in realizing methods and performance was very different.
paraphrase
Metropolitan Area a MAN (MAN), abbreviation based on a large LAN, usually use and LAN similar techniques. The MAN separate lists will be one of the main reasons is already have a standard: Distributed Queue Dual Bus DQDB (Distributed Queue Dual Bus), namely IEEE802.6. DQDB is by dual bus structure, all computers links on top.