| 摘要 |
Optical node (1) comprising at least one input port (PA, PC, PE) and a plurality of output ports (PB, PD, PF), at least one add unit (3B, 3D, 3F) for adding at least one signal on an output port (PB, PD, PF), a broadcasting unit (8) for broadcasting on at least two output ports (PB, PD, PF) the express traffic received on an input port (PA, PC, PE), characterized in that the broadcasting unit (8) is configured for broadcasting at least one added signal on at least two output ports (PB, PD, PF).
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