Add/drop multiplexer, network system, transmission method, non-transitory computer readable medium, and management device
Provided is a wavelength path communication node device with no collision of wavelengths and routes, capable of outputting arbitrary wavelengths, and capable of outputting them to arbitrary routes. An add/drop multiplexer ( 11 ) includes a communication unit ( 101 ) that communicates an optical signal with at least one client device and at least one network and a control unit ( 102 ) that indicates a transfer destination of the optical signal according to an attribute of the received optical signal to the communication unit ( 101 ). The control unit ( 102 ) indicates an attenuation amount of the optical signal to the communication unit ( 101 ) for each connected device. When a connected device is changed, the control unit ( 102 ) instructs the communication unit ( 101 ) to change the attenuation amount. The communication unit ( 101 ) attenuates the optical signal with the attenuation amount indicated by the control unit ( 102 ) and transfers the attenuated optical signal to a transfer destination.
1. An optical communication apparatus comprising;
a demultiplexer configured to demulitplex a wavelength multiplexed signal into a plurality of optical signals;
an attenuator configured to attenuate one of the plurality of optical signals with an attenuation amount corresponding to a first optical device, the attenuated optical signal being sent to the first optical device;
a controller configured to send, to the attenuator, an attenuation information corresponding to the first optical device;
wherein
the controller sends the attenuation information corresponding to a second optical device when a destination of the attenuated optical signals is switched from the first optical device to the second optical device;
the attenuator attenuates the optical signal with an attenuation amount corresponding to the second optical device.
2. The optical communication apparatus according to claim 1 , wherein the controller is further configured to receive, from a management device, a connection information indicating a destination of the attenuated optical signals, and identify the attenuation information based on the connection information.
3. The optical communication apparatus according to claim 1 , wherein the controller is further configured to receive, from a management device, a connection information, and identify the attenuation information corresponding to the second optical device when the connection information indicates that a destination of the attenuated optical signal is switched from the first optical device to the second optical device.
4. The optical communication apparatus according to claim 1 , a destination of the attenuated optical signal is a client device or a network.
5. An optical communication system comprising;
a network management apparatus, and
an optical communication apparatus;
wherein
the network management apparatus controlling the optical communication apparatus;
the optical communication apparatus comprising;
a demultiplexer configured to demulitplex a wavelength multiplexed signal into a plurality of optical signals;
an attenuator configured to attenuate one of the plurality of optical signals with an attenuation amount corresponding to a first optical device, the attenuated optical signal is sent to the first optical device;
a controller configured to send, to the attenuator, an attenuation information corresponding to the first optical device;
wherein
the controller sends the attenuation information corresponding to a second optical device when a destination of the attenuated optical signals is switched from the first optical device to the second optical device;
the attenuator attenuates the optical signal with an attenuation amount corresponding to the second optical device.
6. The optical communication system according to claim 5 ,
wherein
the network management apparatus is further configured to send a connection information indicating a destination of the attenuated optical signal;
the controller is further configured to receive the connection information and identify the attenuation information based on the connection information.
7. The optical communication apparatus according to claim 5 ,
wherein
the network management apparatus is further configured to send, to the controller, the connection information indicates that a destination of the attenuated optical signal is switched from the first optical device to the second optical device; and
the controller is further configured to identify the attenuation information corresponding to the second optical device.
8. The optical communication apparatus according to claim 5 , a destination of the attenuated optical signal is a client device or a network.
9. An optical communication method comprising;
demulitplexing a wavelength multiplexed signal into a plurality of optical signals;
attenuating one of the plurality of optical signals with an attenuation amount corresponding to a first optical device;
sending the attenuated optical signal to the first optical device; and
attenuating the optical signal with an attenuation amount corresponding to a second optical device when a destination of the attenuated optical signals is switched from the first optical device to the second optical device.
10. The optical communication method according to claim 9 , further comprising,
receiving, from a management device, a connection information indicating a destination of the attenuated optical signal; and
identifying the attenuation information based on the connection information.
11. The optical communication method according to claim 9 , further comprising,
receiving, from a management device, a connection information indicates that a destination of the attenuated optical signal is switched from the first optical device to the second optical device; and
identifying the attenuation information corresponding to the second optical device.
12. The optical communication method according to claim 9 , a destination of the attenuated optical signal is a client device or a network.
13. The optical communication apparatus according to claim 1 , wherein the attenuation amount is changed depending on whether the optical device is a cross-connect or a client device.
14. The optical communication system according to claim 5 , wherein the attenuation amount is changed depending on whether the optical device is a cross-connect or a client device.
15. The optical communication method according to claim 9 , wherein the attenuation amount is changed depending on whether the optical device is a cross-connect or a client device.