| 摘要 |
Proposed is a method of switching an optical signal in an optical flex grid network. An allocation of a first optical signal to a first spectral slot of the grid at an input port of an optical node is asserted, and an output port of the node to which the first optical signal shall be switched at the node is asserted. An allocation status of a second, next neighbouring spectral slot at the input port of the node is determined. Control instructions are generated that request for switching at least the first signal from the input port to the output port at the node node by a flex grid WSS via a continuous filter function comprising at least the spectral slices of said first spectral slot. The filter function comprises one or more spectral slices of the second spectral slot in dependence on the determined allocation status. |
