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中国铁通大理城域网利用省干光纤开通了凤仪—祥云1#—祥云2#传输链,楚雄城域网利用省干光纤开通了南华传输链,同时大理和楚雄是省干西环上的2个节点。铁通云南分公司组织对网络进行优化改造,利用省干光纤将祥云1#和南华进行对接,在省干上大理和楚雄之间打通1个VC4,将凤仪、祥
China Tietong Dali Metropolitan Area Network using dry fiber opened Fengyi - Xiangyun 1 # - Xiangyun 2 # transmission chain, Chuxiong MAN using dry fiber opened the South China transmission chain, at the same time Dali and Chuxiong is the provincial stem on the Western ring 2 nodes. Tietong Yunnan branch of the organization of the network optimization and transformation, the use of dry fiber will Xiangyun 1 # and South China docking, Dali and Chuxiong in the province to open up a VC4, Fengyi, Cheung