Development prospects of broadband IP MAN;

Optimized Strategy and Application of the Broadband IP MAN;

Optimization and Practice of Fuzhou Unicom s Broadband IP MAN;

With the evolvement of network and the development of technique,IP broadband metropolitan area network has become the mainstream of broadband network,all kinds of information application will use IP technique.

First,the paper presents conceptions,characteristics and structures of broadband metropolitan area networks,then presents main construction plan for broadband metropolitan area networks such as IP over ATM,IP over SDH,IP over WDM/DWDM,IP over RPR,IP over GE,IP over MSPP,finally presents the principle for construction plan and applications in the electric trades.

broadband metropolitan area networks is now focuses of communications networks development .