Abstract: An example method includes determining, by a network controller, based on a high-level data model, vendor-agnostic device information for a first network device, translating the vendor-agnostic device information into vendor-specific device information, sending, to the first network device, first configuration information included in the vendor-specific device information to cause the first network device to switch into a maintenance mode and enable diversion of network traffic from the first network device to a second network device, responsive to verifying that the first network device has diverted the traffic, initiating maintenance procedures on the first network device while the first network device is in the maintenance mode, and sending, to the first network device, second configuration information included in the vendor-specific device information to cause the first network device to switch out of the maintenance mode and enable reversion of network traffic from the second device to the first network

Abstract: In general, techniques are described for defining and executing device-independent commands on a network having a plurality of network devices. In some examples, a controller includes a graphical user interface. The controller displays, via the graphical user interface, network devices that support a device-independent command selected from one or more device-independent commands, wherein each device-independent command performs one or more operations on supported network devices. The controller receives, via the graphical user interface, user input selecting two or more of the displayed network devices and performs the one or more operations of the selected device-independent command on the selected network devices. In some examples, performing includes executing tasks associated with each network device, wherein the tasks, when executed, perform the one or more operations on each respective network device.

Abstract: The present application relates to the field of communications technologies, and discloses an access method, apparatus, device, and system for visible light communication. The method includes: obtaining neighbor visible light communication personal area network VPAN information, where the neighbor VPAN information includes information about at least one neighbor VPAN of a first VPAN, and information about each neighbor VPAN includes an identity ID and probe information of the neighbor VPAN; sending the neighbor VPAN information to user equipment, where the neighbor VPAN information is used by the user equipment to perform VPAN search and access. In embodiments of the present application, a VPAN sends obtained neighbor VPAN information to user equipment, so that the user equipment can perform VPAN search and access based on probe information of a neighbor VPAN in the neighbor VPAN information.

Abstract: A combined gas-liquid two-phase energy storage and power generation system includes a compressed gas storage unit, a first gas pipeline, a liquid piston device, a hydraulic energy conversion unit and a first pumped power generation unit. The combined gas-liquid two-phase energy storage and power generation system connects the liquid piston device and a first port group of the hydraulic energy conversion unit and receives/outputs the hydraulic potential from/to the first port group, and connects the first pumped power generation unit with the second port group of the hydraulic energy conversion unit and receives/outputs the hydraulic potential from/to the second port group.

Abstract: A data transmission method, device, and system includes, when a preset condition is met, determining a quantity N of first symbols included in one first symbol group and a quantity K of bits transmitted in the first symbol group, where the preset condition is ?log2 mN?>N·?log2 m?, K=?log 2 mN?, m?2, N?2, and K?3; obtaining X data blocks, where each of the first X?1 data blocks includes K bits, the last data block includes Y bits, X?1, and K?Y?1; and processing each of the X data blocks into N first symbols to obtain NX first symbols, and sending the NX first symbols.

Abstract: The present application discloses an uplink transmission method, including: generating, by a media access control (MAC) layer of a first device, MAC information, then generating a first primitive carrying the MAC information, and sending the first primitive to an adjacent higher layer of the MAC layer of the first device; receiving, by the adjacent higher layer of the MAC layer of the first device, the first primitive, then generating an adjacent higher layer message carrying the MAC information, and sending the adjacent higher layer message to an adjacent higher layer of a MAC layer of a second device; and receiving, by the adjacent higher layer of the MAC layer of the second device, the adjacent higher layer message, then generating a second primitive carrying the MAC information, and sending the second primitive to the MAC layer of the second device.

Abstract: Embodiments of the present application provide an information transmission method, a coordinator, and a terminal node in an optical wireless communications network. The method includes: receiving a request to send (RTS) frame sent by a sending node by using a first bandwidth, wherein the RTS frame comprises first indication information; determining a second bandwidth based on the first indication information, wherein the second bandwidth is a sending bandwidth used when the sending node sends to-be-sent information and a receiving bandwidth used when the receiving node receives the to-be-sent information; and sending a clear to send (CTS) frame to the sending node by using a third bandwidth.

Abstract: This application provides a full duplex transmission method and apparatus. The method includes: when a first sending node sends a first data frame to a first receiving node, sending, by a second sending node, an access request and/or a second data frame to a second receiving node based on first indication information, where the first sending node and the second receiving node are the same node, and the first indication information includes at least one of an access node list or a transmission node list; and obtaining, by the second sending node, second indication information from the second receiving node, where the second indication information includes information used to indicate whether the access request and/or the second data frame are/is sent successfully. The full duplex transmission method and apparatus provided by this application can establish full duplex transmission.

Abstract: Techniques are described for dynamically adapting virtualized network functions (VNFs) to different target environments. A controller stores device profiles that include configuration data and workflows for resolving configuration parameters for instantiating and deploying a VNF package to form a network service. To support the resolution of VNF configuration parameters, a VNF descriptor for the VNF is extended to include a device family parameter that indicates a shared architecture and configuration parameters. The controller, when instantiating the VNF, may identify a device profile usable for resolving the configuration parameters for the VNF and obtain configuration data from the device profile for creating and configuring a VNF instance for the VNF descriptor. Extending the VNF descriptor to specify a device family allows the VNF to be flexibly adapted for different target environments and may avoid the use of numerous pre-defined VNF descriptors.

Abstract: Embodiments provide a method, an apparatus, and a system for joining a node to a network. The method includes: receiving an access indication that is sent by a joined node and that carries information about at least one joining node; broadcasting, according to the access indication, a MAP frame carrying the information about the at least one joining node, so that a joining node corresponding to the joining node information directly completes registration after receiving the MAP frame; and sending, by a DM, an authentication password to the joining node, so that the joining node completes authentication according to the authentication password and joins the network.

Abstract: A device may receive information identifying a set of tasks to be executed by a microservices application that includes a plurality of microservices. The device may determine an execution time of the set of tasks based on a set of parameters and a model. The set of parameters may include a first parameter that identifies a first number of instances of a first microservice of the plurality of microservices, and a second parameter that identifies a second number of instances of a second microservice of the plurality of microservices. The device may compare the execution time and a threshold. The threshold may be associated with a service level agreement. The device may selectively adjust the first number of instances or the second number of instances based on comparing the execution time and the threshold.

Abstract: In general, techniques are described for providing data consistency for managed device data among network managers in a hierarchical and distributed network management system in which the network managers operate according to a microservices-based software architecture. For example, a method comprises receiving a data model for a network device, wherein the data model comprises an object and an annotation that indicates a type of scope for the object; and processing, based on the object and annotation, the data model to generate application code for a microservice application for a network manager for managing instances of the network device, wherein the application code, when compiled, and executed by the network manager, causes the network manager to replicate data associated with the object to one or more of a plurality of network managers of a distributed network managed system.

Abstract: The present application relates to the field of communications technologies, and discloses an access method, apparatus, device, and system for visible light communication. The method includes: obtaining neighbor visible light communication personal area network VPAN information, where the neighbor VPAN information includes information about at least one neighbor VPAN of a first VPAN, and information about each neighbor VPAN includes an identity ID and probe information of the neighbor VPAN; sending the neighbor VPAN information to user equipment, where the neighbor VPAN information is used by the user equipment to perform VPAN search and access. In embodiments of the present application, a VPAN sends obtained neighbor VPAN information to user equipment, so that the user equipment can perform VPAN search and access based on probe information of a neighbor VPAN in the neighbor VPAN information.

Abstract: A device may receive information identifying a set of tasks to be executed by a microservices application that includes a plurality of microservices. The device may determine an execution time of the set of tasks based on a set of parameters and a model. The set of parameters may include a first parameter that identifies a first number of instances of a first microservice of the plurality of microservices, and a second parameter that identifies a second number of instances of a second microservice of the plurality of microservices. The device may compare the execution time and a threshold. The threshold may be associated with a service level agreement. The device may selectively adjust the first number of instances or the second number of instances based on comparing the execution time and the threshold.

Abstract: Embodiments of the present application provide an information transmission method, a coordinator, and a terminal node in an optical wireless communications network. The method includes: receiving a request to send (RTS) frame sent by a sending node by using a first bandwidth, wherein the RTS frame comprises first indication information; determining a second bandwidth based on the first indication information, wherein the second bandwidth is a sending bandwidth used when the sending node sends to-be-sent information and a receiving bandwidth used when the receiving node receives the to-be-sent information; and sending a clear to send (CTS) frame to the sending node by using a third bandwidth.

Abstract: In one example, a network management system (NMS) device manages a plurality of network devices including first and second network devices. Initially the first and second network devices are configured according to a first high-level configuration. The NMS is configured to determine a difference between the first high-level configuration and a second high-level configuration, apply a first transformation function, specific to the first network device, to the difference to generate a first low-level configuration change specific to the first device, apply a second transformation function, specific to the second network device, to the difference to generate a second low-level configuration change specific to the second device, configure the first device with the first low-level configuration change, and configure the second device with the second low-level configuration change.

Abstract: A beacon sending method, a network access method, a coordinator, and a device are disclosed. The method is: sending, by a coordinator, a beacon by occupying a first beacon timeslot in a current super frame, and after sending the beacon, receiving a first beacon request frame sent by a device, where the first beacon request frame is used to indicate that the device is located in an interference area between an area of a first network in which the coordinator is located and an area of at least one second network; and after receiving the first beacon request frame, sending, by the coordinator, a beacon by separately occupying a first beacon timeslot and a second beacon timeslot in each of N super frames starting from a next super frame, where N?1, and N is a positive integer.

Abstract: The present application discloses an uplink transmission method, including: generating, by a media access control (MAC) layer of a first device, MAC information, then generating a first primitive carrying the MAC information, and sending the first primitive to an adjacent higher layer of the MAC layer of the first device; receiving, by the adjacent higher layer of the MAC layer of the first device, the first primitive, then generating an adjacent higher layer message carrying the MAC information, and sending the adjacent higher layer message to an adjacent higher layer of a MAC layer of a second device; and receiving, by the adjacent higher layer of the MAC layer of the second device, the adjacent higher layer message, then generating a second primitive carrying the MAC information, and sending the second primitive to the MAC layer of the second device.

Abstract: A security controller (SC) restoration method is provided. The method includes: designating, by a master node, a node to which a backup SC belongs, where the master node includes an original DM or a backup DM; sending, by the master node to a first node, a message indicating the backup SC, where the message indicating the backup SC includes an identifier of the node to which the backup SC belongs; in a case in which a node to which an original SC belongs is disconnected, sending, by the master node to the first node, a message for enabling an SC function, for performing authentication, according to the message for enabling an SC function.

Abstract: Embodiments of the present disclosure disclose a security controller SC restoration method. The method provided by the embodiments of the present disclosure includes: designating, by a master node, a node to which a backup SC belongs, where the master node includes an original DM or a backup DM; sending, by the master node to a first node, a message indicating the backup SC, where the message indicating the backup SC includes an identifier of the node to which the backup SC belongs; in a case in which a node to which an original SC belongs is disconnected, sending, by the master node to the first node, a message for enabling an SC function, for performing authentication, according to the message for enabling an SC function.