Patent ID: 11876555
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A breakdown determination system comprising:
a switching device configured to switch a transmission path of optical signals between an upper network and a lower network;
one or more intermediate communication devices configured to relay communication between the upper network and the lower network;
a selection device configured to select a standby port of the one or more intermediate communication devices;
a measurement device configured to connect, via the switching device, to the standby port that is selected and measure an optical signal of the standby port that is connected;
a determination device configured to determine whether an intermediate communication device of the one or more intermediate communication devices including the standby port that is selected breaks down based on a result of measuring the optical signal; and
a storage device configured to store a result of determining whether the intermediate communication device breaks down,
wherein the selection device selects the standby port that meets a condition of a communication standard of the optical signal,
wherein each of the switching device, the one or more intermediate communication devices, the selection device, the measurement device, the determination device and the storage device are implemented by:
i) computer executable instructions executed by at least one processor,
ii) at least one circuity or
iii) a combination of computer executable instructions executed by at least one processor and at least one circuity.