Description: A municipal broadband metropolitan area network can support high-speed data access, directly to the building, business users and residential users to provide various broadband services and support, such as high-speed Internet, VPLS (LAN interconnection), interactive video, remote health care/education, etc. interactive services. AADSL as a result of the rapid development of broadband users, with increasing equipment capacity, as well as other restrictions, the network form of the growing complexity of the operation of equipment varies, together with the co-ordination between the various models of the problem, so problems in the maintenance of increasingly complex and subtle. The actual maintenance of the following that were encountered in three cases of failure, Analysis of Broadband MAN maintenance.
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