Embodiments of the present disclosure provides a method for service processing in optical transport network including: mapping a client service into a service container; and mapping the service container into a data frame, wherein the data frame includes multiple unit blocks for bearing the service container, the unit blocks are divided into first-type unit blocks and second-type unit blocks, the first-type unit blocks include a payload portion, and the second-type unit blocks include a payload portion and an overhead portion, the payload portion is used for bearing service data, and the overhead portion includes identification information of the service container. The embodiments of the present disclosure also provide an apparatus for service processing in optical transport network, an electronic device, and a computer readable medium.

Provided are a virtualization method and apparatus. The virtualization method applied to a main control board includes that: a resource of a line card board is allocated to a slice of a virtualization system of the main control board, wherein the slice includes: a management slice and/or an ordinary slice; and cross-board communication between the virtualization system of the main control board and a virtualization system of the line card board is implemented by means of communication between the management slice of the main control board and a management slice of the line card board.

A method may include obtaining a topology of an optical network. The topology may indicate multiple optical links within the optical network. The method may also include obtaining a routing metric for each of the optical links. The routing metric may be used in selecting routes through the optical network along the multiple optical links. The method may further include obtaining a signal noise tolerance of an optical signal to be routed through the optical network and adjusting routing metrics of one or more of the multiple optical links based on the signal noise tolerance of the optical signal. The method may also include after the routing metrics of the one or more of the multiple optical links are adjusted, determining a route for the optical signal through the optical network along two or more of the multiple optical links based on the routing metrics of the multiple optical links.

A service processing method in an optical transport network (OTN), including: mapping a client service to a service container; mapping the service container to an OTN frame or an OTN multi-frame composed of a plurality of continuous OTN frames, where a payload area of the OTN frame or the OTN multi-frame includes M unit blocks configured to bear the service container; bearing length indication information of the unit blocks in an overhead area of the OTN frame or the OTN multi-frame; and sending the OTN frame or the OTN multi-frame. Embodiments of the present disclosure further provide a service processing apparatus in an OTN, an electronic device, and a computer-readable medium.

Embodiments of the present disclosure provides a method for service processing in an optical transport network including: mapping a client service into a service container; and mapping the service container into an optical transport network frame, where a payload area of the optical transport network frame consists of payload blocks, each of the payload blocks includes an overhead area, and the overhead area includes an indicator being used for indicating whether data carried by the payload block is service container data or stuff data. The embodiments of the present disclosure further provide an apparatus for service processing in an optical transport network, an electronic device and a computer readable medium.

Embodiments are generally directed apparatuses, methods, techniques and so forth to select two or more processing units of the plurality of processing units to process a workload, and configure a circuit switch to link the two or more processing units to process the workload, the two or more processing units each linked to each other via paths of communication and the circuit switch.

Provided are a method and device for mapping, multiplexing, demapping and demultiplexing data are provided. The method includes: mapping an Ethernet service data stream the rate of which is m*100 Gb/s sequentially into m Optical Payload Unit Sub-frames (OPUC) and multiplexing the m OPUC into an Optical Payload Unit Frame (OPUCm) the rate of which is m*100 Gb/s according to the way of byte interleave; and adding an Optical Channel Data Unit (ODU) overhead to the head of the OPUCm to obtain an Optical Channel Data Unit Frame (ODUCm) the rate of which is m*100 Gb/s, wherein the frame structure of the OPUC consists of 4 rows and 3810 columns; the frame structure of the OPUCm consists of 4 rows and 3810*m columns; and the frame structure of the ODUCm consists of 4 rows and 3824*m columns, wherein m is a positive integer. The present disclosure improves the spectrum efficiency of optical fibers and the systematic flexibility and the compatibility.

Disclosed are a method and device for managing optical channel overhead, and an optical signal receiving node. The method comprises: optical channel overhead information is structured, wherein the optical channel overhead information comprises at least one of the following: the optical channel nominal central frequency, the optical channel application code, and the optical channel trail trace identifier; and the optical channel overhead information is sent to the optical signal receiving node. The disclosure solves the technical problem in the related art of an inability to negotiate a single, unified optical channel nominal central frequency and application code between the optical transmitter and the optical receiver, i.e. the disclosure enables an optical transmitter and the optical receiver to negotiate such the nominal central frequency and application code, thereby achieving the technical result of an optical signal being correctly sent and received.

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.

A digital optical data network system for improving information security in Passive Optical Networks (“PON”) by providing virtual information separation in the router, such as a premise router, or routers interfacing the entire PON, such as by utilizing virtual routing and forwarding, thus allowing safe data traffic between multiple carriers, service providers accessing the PON and multiple end users on the PON such as tenants in a building, employees of a business entity, or subscribers in a residential community.