| Metropolitan Area Network |
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| CATEGORIES ABOUT METROPOLITAN AREA NETWORK | |
| networks by scale | |
| metropolitan area networks | |
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For instance a University or College may have a MAN that joins together many of their Local Area Network s (LANs) situated around site of a fraction of a square kilometer. Then from their MAN they could have several Wide Area Network (WAN) links to other universities or the Internet . Some technologies used for this purpose are ATM , FDDI and SMDS . These older technologies are in the process of being displaced by Ethernet -based MANs (e.g. Metro Ethernet ) in most areas. MAN links between LANs have been built without cables using either microwave, radio, or infra-red Free-space Optical Communication links. DQDB , Distributed Queue Dual Bus, is the Metropolitan Area Network standard for data communication. It is specified in the IEEE 802.6 standard. Using DQDB, networks can be up to 30 miles long and operate at speeds of 34 to 155 Mbit/s . Several notable networks started as MANs, such as the Internet Peering Point s MAE-West and MAE-East and the Sohonet media network. SEE ALSO
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