An electrical switching cluster system includes a plurality of input nodes, a plurality of intermediate nodes, and a plurality of output nodes. Each of the input nodes performs electrical switching on electrical signals to obtain a plurality of groups of first electrical signals, and converts one group of first electrical signals into a multi-wavelength first optical signal. Each of the intermediate nodes demultiplexes a plurality of first optical signals to obtain a plurality of groups of second optical signals, and multiplexes optical signals of different wavelengths in the plurality of groups of second optical signals to obtain a plurality of multi-wavelength third optical signals. Each of the output nodes converts one third optical signal into one group of second electrical signals, and performs electrical switching on a plurality of groups of second electrical signals to output the plurality of groups of second electrical signals through any output port.

An optical transceiver includes electrical inputs that each correspond to a selected port of a number of network ports and a selected network lane of the selected port. The optical transceiver includes optical transmitters organized in groups to optically transmit data received at the inputs over a plurality of optical transmission fibers to which the groups correspond. The optical transceiver includes multiplexers corresponding to the transmission fibers. Each multiplexer is to wave-division multiplex the data transmitted by the transmitters within the group corresponding to the transmission fiber to which the multiplexer corresponds. The optical transceiver includes hardware logic to differently map the inputs to the transmitters according to a selected mode of a number of switchable modes corresponding to different data transmission bandwidths.

An intelligence-defind optical tunnel network system includes a first tier network and a second tier network. The first tier network includes multiple pods, any one of which includes multiple Optical Add-Drop Sub-systems (OADS) configured to transmit data between corresponding servers through ToR switches. The second tier network includes multiple Optical Switch Interconnect Sub-systems (OSIS). Any two of the OSISs transmit a corresponding lateral optical signal via a first line correspondingly. Any two adjacent OSISs are coupled to the OADSs in the same pod of the first tier via multiple optical paths respectively.

A flexible grid optical transmitter communicatively coupled to an optical network includes a coherent optical transmitter configured to generate a signal at a respective center frequency on an optical spectrum and spanning n bins about the respective center frequency, wherein n is an integer greater than 1, wherein the respective center frequency and the n bins are utilized to perform Operations, Administration, Maintenance, and Provisioning (OAM&P) functions. The respective center frequency and the n bins are specified to the coherent optical transmitter by a management system for the OAM&P functions. Each of the n bins can include a same arbitrary size, and the arbitrary size can be greater than or equal to 1 GHz and less than or equal to 12.5 GHz.

A method of managing an optical service in a node utilizing a flexible grid for optical spectrum includes utilizing a Media Channel (MC) model to manage a portion of optical spectrum on an optical line, the MC model includes first frequency information which define the portion of optical spectrum; utilizing a Network Media Channel (NMC) model to manage the optical service and to model a path of the optical service in the MC model, the NMC model has frequency information and port connection information for the optical service; and programming hardware in the node based on the MC model and the NMC model to implement the optical service.

An optical transceiver includes electrical inputs that each correspond to a selected port of a number of network ports and a selected network lane of the selected port. The optical transceiver includes optical transmitters organized in groups to optically transmit data received at the inputs over a plurality of optical transmission fibers to which the groups correspond. The optical transceiver includes multiplexers corresponding to the transmission fibers. Each multiplexer is to wave-division multiplex the data transmitted by the transmitters within the group corresponding to the transmission fiber to which the multiplexer corresponds. The optical transceiver includes hardware logic to differently map the inputs to the transmitters according to a selected mode of a number of switchable modes corresponding to different data transmission bandwidths.

A method of managing an optical service in a node utilizing a flexible grid for optical spectrum includes utilizing a Media Channel (MC) model to manage a portion of optical spectrum on an optical line, the MC model includes first frequency information which define the portion of optical spectrum; utilizing a Network Media Channel (NMC) model to manage the optical service and to model a path of the optical service in the MC model, the NMC model has frequency information and port connection information for the optical service; and programming hardware in the node based on the MC model and the NMC model to implement the optical service.

Comprises aggregating data received by a first number of server ports of an edge switch. The server ports operate at a first data speed. The aggregated data is distributed into a plurality of virtual lanes with each virtual lane carrying a portion of the aggregated data at a second data speed less than the first data speed.

Provided are wavelength switching and configuration methods and devices for a Passive Optical Network (PON). The switching method includes the following operations. An Optical Network Unit (ONU) responds to a ranging request message sent by an Optical Line Terminal (OLT) on a first uplink wavelength supported by the ONU. The ONU receives ranging information sent by the OLT. The ONU uses the received ranging information as ranging information about a second uplink wavelength of the ONU, and performs data transmission on the second uplink wavelength according to a bandwidth allocation from the OLT. A path transmission time difference caused by a wavelength interval between the first uplink wavelength and the second uplink wavelength is less than a corresponding fault tolerance range when the OLT receives data. The ranging information is obtained by the OLT according to a ranging response sent by the ONU on the first uplink wavelength.

An optical communications network comprises optical data links interconnected by add-drop nodes, the optical data links comprising data channels. The data channels are allocated into equal-sized bins. In response to a first data channel request between a given source-destination pair, one of the equal-sized bins is assigned to the data channel request. In response to requests for additional bandwidth for the same source-destination data channel request, unused channels within the assigned equal-sized bin are allocated to the data channel request. In response to subsequent data channel requests between different source-destination pairs, additional unallocated equal-sized bins are assigned to the subsequent data channel requests. In response to subsequent data channel requests when resource sharing for one equal-sized bin, data channels in the last equal-sized bin are assigned using the reverse channel assignment process. Reverse channel assignment can also be used for other bins as an option.