Reinventing the Access Network Access Network in 2011 (8)(8) 2,5G 700M 600M 1000M 2,5G 6x1G 500M 600M 2,5G SDH Rings 1,2G PtoP EoSDH Circuits STP for Redundancy 2,5G SDH Rings 1,2G PtoP EoSDH Circuits STP for Redundancy
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