Abstract: An optical connection switching according to the present invention comprises an optical connection switching fabric capable of making a connection between any one of optical input ports and any one of optical output ports, one or more optical transceiving units connected to a part of the optical input/output ports, and a management control unit for controlling the optical connection switching fabric to make a connection between the optical input/output port connected to the optical transceiving unit and the optical input/output port connected to the equipment for acquiring and managing information on the equipment by making a communication with the equipment through the use of the optical transceiving unit. This enables acquiring the information on the equipment having an optical communication interface to be optically connected, thereby automating the connection management of the equipment.

Abstract: A span between an optical transmitting end station and an optical repeater node, a span between optical repeater nodes, a span between an optical repeater node and a receiving end station, and a span between an optical repeater node and a CN/OADM/HUB node are set as first dispersion compensation sections. Additionally, a span between the optical transmitting end station and a CN/OADM/HUB node, a span between CN/OADM/HUB nodes, and a span between a CN/OADM/HUB node and the receiving end station are set as second dispersion compensation sections. In the first dispersion compensation sections, dispersion compensation is made so that residual dispersion becomes a predetermined negative value. In the second dispersion compensation sections, dispersion compensation is made so that residual dispersion becomes a positive value.