50 results about "Virtual link" patented technology

The invention relates to the technical field of data classification, in particular to a hospital intelligent inquiry log analysis method and system.The method comprises the following steps that medical concept depth is counted, symptom keywords are extracted, statistical information gain and semantic consistency scores are calculated, split decision-making indexes are generated by combining the gain and the scores to construct an intention classification tree, and an intention classification result is obtained; inputting a log to generate an inquiry intention identifier, recognizing an error node based on diagnosis and treatment correction feedback and updating a punishment value, establishing a virtual error correction link, calculating a path confidence fusion node, and establishing a physical branch to generate a reconstruction classification tree when a guide weight exceeds a limit. According to the method, keyword statistics is upgraded into three-dimensional feature analysis by introducing medical concept hierarchies, a classification tree following a medical system is constructed, a reverse penalty and virtual link mechanism is constructed by using feedback, node fusion and reconstruction are executed based on confidence, classification logic self-adaptive evolution is realized, and intention recognition interpretation and robustness are improved.

The invention discloses a virtual-real fusion network communication performance real-time monitoring method, device and equipment and a medium, and belongs to the field of communication monitoring, and the method comprises the steps: monitoring a communication link performance test instruction issued by a user in real time; wherein the communication link comprises a real link, a virtual link and a virtual real link; when a first instruction of only performing performance test on one communication link is received, determining the type of the communication link according to the nodes at the two ends of the communication link, and selecting a corresponding test method to test the performance of the communication link according to the type of the communication link; and when a second instruction for testing the performance of all the communication links is received, testing the performance of all the real links and all the virtual links in parallel, and then testing the performance of all the virtual links in batches according to the path lengths of the virtual links. Therefore, by implementing the application, the problem of low communication performance monitoring efficiency under a complex virtual-real hybrid network structure can be solved.

The invention relates to an intelligent ship network optimization method, system and device based on multi-link convergence and a medium. The method comprises the following steps: firstly, acquiring multi-network link connection parameters of the intelligent ship, constructing an adaptive environment, modifying a protocol stack, and integrating a physical link into a virtual link to realize resource convergence; and based on the real-time parameters of the virtual link and the physical link, dynamically distributing traffic by adopting an improved aggregation protocol, and generating a load balancing scheme. And then, regularly sending a detection packet quality index, and predicting a link quality trend in combination with historical data and navigation longitude and latitude. And finally, dynamically adjusting flow distribution according to a prediction result, an application real-time demand, a bandwidth demand and a current position tariff characteristic, and generating a ship-shore communication scheme considering both efficiency and cost. By adopting the method, the stability, reliability and economy of ship-shore communication of the intelligent ship can be effectively enhanced, and the method is suitable for multi-scene network monitoring optimization.

The invention relates to a virtual network mapping method based on double-agent reinforcement learning in a space division multiplexing elastic optical network, belongs to the technical field of communication, and aims to solve the problems of multidimensional resource allocation complexity, fiber core crosstalk and spectrum fragmentation in the space division multiplexing elastic optical network. According to the technical scheme, collaborative optimization mapping is carried out on virtual network requests by setting a link fiber core mapping agent and a frequency spectrum mapping agent, and the collaborative optimization mapping comprises the steps of initializing an underlying optical network topology and a virtual network topology, sorting virtual network sets according to the total bandwidth of the requests, embedding virtual links in a descending order, and executing physical node embedding and path searching. And the intelligent agent selects a link fiber core and spectrum allocation based on the network state feature matrix, and a model is trained through a reward mechanism to realize efficient resource matching. The technical effects are that the real-time performance and efficiency of virtual network mapping are obviously improved, the service blocking rate is reduced, the spectrum resource utilization rate is optimized, and the overall load capacity of the network is enhanced.

The invention provides a congestion control method and device, equipment, a storage medium and a program product, and the method comprises the steps: obtaining a response time delay corresponding to terminal equipment, and enabling the response time delay to be the duration between the updating time of a to-be-confirmed pointer and the current time, the pointer to be confirmed points to the serial number of the first byte which is sent by the terminal equipment but does not receive the confirmation message; obtaining the path time delay of each virtual link in a plurality of virtual links corresponding to the terminal equipment, the path time delay being determined according to the transmission round-trip duration corresponding to the plurality of data packets on the virtual links; and adjusting a congestion window of the terminal device according to the response time delay, and performing load balancing processing on a plurality of physical links corresponding to the plurality of virtual links according to the path time delay of each virtual link, the congestion window being used for indicating the maximum data volume continuously sent by the terminal device. Through the congestion control method provided by the invention, the network congestion can be reduced, and the load balancing effect of the physical link can be improved.

A congestion control method and apparatus, a device, a storage medium, and a program product. The method comprises: acquiring a response delay corresponding to a terminal device, wherein the response delay is a duration between an update moment of a pointer to be acknowledged and the current moment, and said pointer refers to the sequence number of a first byte that has been sent by the terminal device but for which an acknowledgment message has not yet been received; acquiring a path delay of each virtual link among a plurality of virtual links corresponding to the terminal device, wherein the path delay is determined on the basis of transmission round-trip durations corresponding to a plurality of data packets on the virtual link; and adjusting a congestion window of the terminal device on the basis of the response delay, and on the basis of the path delay of each virtual link, performing load balancing processing on a plurality of physical links corresponding to the plurality of virtual links, wherein the congestion window is used for indicating the maximum data volume the terminal device may consecutively send. The congestion control method can reduce network congestion and improve the load balancing effect of physical links.

A client device communicates with a network via a host device as an intermediary through a virtual link technique in which an Internet Protocol (IP) tunnel is established between the client device and the host device, and a plurality of physical links between the host device and the client device are assigned or otherwise associated with the IP tunnel such that the IP tunnel acts as a single virtual link between the client device and the host device, with fixed IP addresses, but therein data can be communicated between the client device and the host device on different physical links according to routing policy that includes routing rules for routing data packets between the different physical links according to one or more parameters.

According to the wide area network flow scheduling method for sensing link congestion disclosed by the invention, the congestion hotspot link in the network is identified in advance by analyzing the link congestion condition, the virtual link capacity is generated by scaling the link capacity of the congestion hotspot link, and the flow scheduling for coping with the network fluctuation is carried out based on the virtual link capacity. According to the method, the traffic is enabled to avoid the congestion hotspot link, so that a buffer space is provided for the traffic fluctuation, the robustness to the traffic fluctuation is improved, a subsequent routing strategy is optimized by generating the virtual link capacity, and a specific traffic engineering scheme does not need to be bound, so that the method can be seamlessly integrated into various existing traffic engineering schemes; only a small number of congestion hotspot links are intervened, so that the utilization rate, namely the median performance, under the conventional condition is slightly influenced while the performance under the worst condition is greatly improved to deal with burst traffic.

The invention belongs to the technical field of communication, and relates to a network traffic configuration method and device, electronic equipment and a computer readable storage medium. The network traffic configuration method at least comprises the following steps: acquiring a virtual network traffic configuration request, wherein a virtual network comprises a plurality of virtual links; acquiring information of a physical network, wherein the physical network comprises a plurality of physical links; obtaining a bandwidth demand of a virtual link and a bandwidth capacity limit of a physical link; mapping each virtual link to a plurality of actual mapping paths on a physical network by adopting a path divisible mapping algorithm; each actual mapping path comprises a plurality of physical links which are connected in sequence, and the actual mapping paths can meet the bandwidth requirements of the virtual links and the bandwidth capacity limitation of the physical links at the same time; packaging the information containing the actual mapping path in a data packet; and the data packet can be transmitted along the actual mapping path. According to the network flow configuration method, the newly added virtual link can be conveniently embedded into the physical network.

The invention relates to multi-domain virtual network security mapping for cross matching and optical path separation fault tolerance, and belongs to the technical field of optical fiber communication. According to the method, a double-layer block chain network architecture is adopted, a main chain is used for inter-domain resource collaborative scheduling and information synchronization of an optical network, and a secondary chain realizes intra-domain resource autonomous management and trust maintenance of the optical network; in the virtual node mapping stage, mapping preference values between virtual nodes and physical nodes are introduced to construct a mapping bigraph, and virtual node mapping is optimized through a cross matching mechanism; in the virtual link mapping stage, the security and reliability of quantum key distribution are guaranteed by adopting multi-path routing and a security redundant path, and an encrypted data transmission optical path based on minimum spectrum consumption is adopted; punishing malicious nodes according to a virtual network mapping result, and tracing and updating credibility values of non-malicious nodes participating in virtual network mapping through block information. According to the method, the security and the resource utilization rate of virtual network mapping in the optical network multi-domain environment can be improved.

A virtualized network function (VNF) of a network function virtualization (NFV) link level architecture includes a management plane function (MPF) to map a logical interface as a virtual interface in a control plane function (CPF) of the VNF. The MPF maps a logical resource of the NFV virtualization link level architecture as a shadow resource on one or more data plane functions (DPFs) of the VNF, wherein a virtual link is formed by the logical interface, the shadow resource, and the virtual interface. One of the DPFs receives a packet over the virtual link from a switch and classifies a type of the packet. In response to the packet type being a data packet, the DPF aggregates the packet with other data packets to form aggregated data packets and sends the aggregated data packets to the switch.

A method for detecting security breach in avionics network is disclosed. The method comprises generating a signal corresponding to avionics network for each source end with a predefined timestamp; transmitting the signal from each source end to each destination end with the predefined timestamp via virtual links; determining whether the signal received by each destination end is at the predefined timestamp; determining whether the message signature associated with the signal received by each destination end is valid, upon determining the signal received by each destination end is at the predefined timestamp; determining whether an error count of errors exceeds a predefined threshold value upon determining the message signature is not valid or upon determining the signal received by each destination end is not at the predefined timestamp; and generating an alert associated with the errors upon determining the error count exceeds the predefined threshold value, for a user.

The invention discloses a message delay analysis method for ARINC664 terminal traffic shaping. The method comprises the following steps: calculating an arrival curve of each message; adding the arrival curves of the messages to obtain a message frame stream aggregation arrival curve alpha w of all frameflowi in the sub virtual link queue; calculating a strict service curve beta < w > (t) of the sub-virtual link; and taking the maximum horizontal distance between the aggregation arrival curve and the strict service curve as the maximum delay of sub-virtual link traffic shaping, and taking the maximum value of the maximum delay of all sub-virtual link traffic shaping as the maximum delay of virtual link traffic shaping. The method can be used as a basis for deterministic analysis of the ARINC664 network.

The invention relates to the technical field of physical optical network resource allocation, and discloses a service function chain mapping method based on resource sensitivity, which is used for calculating the virtual resource sensitivity of a virtual link based on a virtual network function calculation demand and a link bandwidth demand. Calculating the physical resource sensitivity of the physical link based on the computing resource required by the physical node, the path distance and the frequency spectrum fragmentation rate; solving the feature vector centrality of each virtual network function based on the virtual resource sensitivity so as to determine the mapping priority of each virtual network function; meanwhile, the betweenness centrality of each physical node is calculated based on the physical resource sensitivity to serve as a node selection basis; and based on the principle of mapping the virtual network function with high feature vector centrality to the physical node with high betweenness centrality, sequentially mapping the service function chains to be mapped to the physical optical network, and configuring an optical regenerator for the optical path. According to the method, global optimization of calculation and transmission resources is realized, and the mapping cost is reduced while the service function chain deployment success rate is improved.

The invention discloses a dynamic bandwidth allocation method and system in an SDN (Software Defined Network) environment, and relates to the technical field of bandwidth allocation, and the method comprises the following steps: obtaining network topology information through an SDN controller, the network topology information comprising a network node set and a physical link set; a plurality of same physical links of the source node and the target node are logically aggregated to form a virtual link, and the virtual link is responsible for dynamically adjusting the bandwidths of the plurality of corresponding physical links; the method comprises the following steps: collecting real-time traffic demands of each node pair in a network through an SDN controller, and constructing a traffic demand matrix; wherein the source node and the target node form a node pair; and solving the linear programming model based on the plurality of virtual links and the traffic demand matrix to obtain an optimal bandwidth allocation scheme. According to the method, the linear programming model is solved through the traffic demand matrix constructed through real-time traffic and the virtual link, and global optimal distribution of network resources is achieved.

The application provides a transmission resource scheduling method and system based on a clustering communication network, and relates to the technical field of computer application, which comprises the following steps: acquiring state parameters of each physical link between each member node and neighbor node in the communication network; dividing the physical link into different resource partitions according to the state parameters; performing an aggregation algorithm on the physical link between the nodes in the resource partition according to a service characteristic label to acquire an intra-cluster virtual link matrix; performing the aggregation algorithm on the physical link between the boundary node pairs of adjacent clusters in the resource partition to acquire an inter-cluster virtual link, and performing the aggregation algorithm on the physical link between the entry boundary node and the exit boundary node in the cluster to acquire a cluster aggregation virtual link, thereby forming a virtual resource pool; and acquiring a transmission scheduling strategy that meets the adaptation request from the virtual resource pool according to a query request. The capability description of the virtual link is matched with the transmission characteristics of the service, and the overall utilization rate is improved.

This application provides a covert security detection method and apparatus based on virtual machines and virtual links. By innovatively constructing a virtual resource management mechanism, and through fine-grained configuration and allocation, it achieves efficient integration of computing, storage, and network resources. A three-layer virtual machine architecture is designed, combined with network interface card (NIC) pass-through probes, a sandbox environment, and node orchestration to establish security analysis and management strategies. A virtual link scheduling mechanism is introduced, enabling covert transmission of detection data through multi-layer tunnel networks and failover. This method effectively addresses the shortcomings of traditional technologies in virtual resource management, security analysis, and link scheduling, significantly improving the covertness and reliability of security detection.

The invention provides a link migration scheme generation method and apparatus, an electronic device and a storage medium. The method comprises the steps of obtaining network state information, initial configuration data and target configuration data of a target physical network; determining an initial virtual link path and a target virtual link path based on the network state information, the initial configuration data and the target configuration data; constructing a mixed integer linear programming model; and inputting the network state information, the initial virtual link path and the target virtual link path into a mixed integer linear programming model to generate a target link migration scheme. Through a closed loop of'perception-modeling-optimization-execution ', transition of virtual network link migration from'experience drive' to'model drive and optimization drive 'is realized, the performance guarantee capability, resource efficiency and automation level of a migration scheme are remarkably improved, personalized migration can be realized by adjusting a mixed integer linear programming model, and the migration efficiency is improved. The practicability of the scheme is greatly improved, and the engineering practical value is achieved.

The application provides a FC network communication scheduling method based on a virtual link, comprising the following steps: constructing one or more virtual links between a sending node and one or more receiving nodes; configuring virtual link parameters to limit the maximum available bandwidth of each virtual link, wherein the virtual link parameters comprise a bandwidth allocation interval and a maximum frame length; allocating one or more data frames sent by the sending node to one or more virtual links; configuring a virtual link credit amount for transmission through a switch; when the switch receives a data frame, if the virtual link credit amount is greater than the maximum frame length of the data frame, the credit amount is consumed, the data frame is forwarded through the switch, if the virtual link credit amount is less than the maximum frame length of the data frame, the data frame is discarded by the switch; the virtual link credit amount has an upper limit, after the virtual link credit amount is consumed, a maximum frame length value is gradually increased in one bandwidth allocation interval, and the above steps are repeated until the data is transmitted completely.

A kind of avionics network virtual link configuration method based on dynamic programming and top-down, detect IP fragmentation caused by MTU, network bandwidth limit and the jitter limit caused by multiple virtual link propagation, the bandwidth calculation problem of virtual link is modeled into the optimization problem of minimization;According to the limit condition, the initial parameters of virtual link that make the total bandwidth of network minimum are obtained, the message allocation method based on dynamic programming is used when the size of message is small, and the traversal type top-down message allocation method is used when the size of message is large, to obtain the corresponding virtual link and configuration parameters when each message flow is transmitted.The message allocation method with the target of improving bandwidth margin using dynamic programming idea and top-down structure respectively can significantly improve bandwidth margin to adapt to larger scale actual data, and has fast running speed.

The embodiment of the invention provides a quantum network routing method and device, and the method comprises the steps: constructing a basic link set composed of basic links between two adjacent nodes for a shortest path from a source node to a destination node; calculating the criticality of the basic link according to the maximum number of entangled links which can be established by adjacent nodes and the probability of successfully establishing the entangled links, and selecting the key link with the maximum criticality; based on the position of the key link in the shortest path and the criticality difference between the key link and the adjacent link, selecting the path extension direction of the key link; entanglement swap is carried out in the path extension direction to establish a virtual link, and a basic link set is updated; and selecting a new key link and a path extension direction thereof based on the updated basic link set, continuing to establish a new virtual link until a complete virtual link from the source node to the destination node is established, and calculating the expected throughput of the complete virtual link. According to the invention, the network throughput can be improved, and the efficiency of establishing end-to-end entanglement is improved.

This invention discloses an AFDX switching system supporting standard Ethernet bridging, comprising: an ARINC664 / ETH converged receiving module, an AFDX switch control module, a virtual link aggregation module, a redundant network management and deduplication module, a high-speed cross-matrix routing module, and an ARINC664 / ETH protocol encapsulation and transmission module. This system achieves efficient switching within the AFDX network and transparent bridging switching with standard Ethernet by performing ARINC664 / ETH protocol message fusion extraction, virtual link bandwidth management, redundant frame arbitration and filtering, virtual link-based cross-matrix routing, and cross-ARINC664 / ETH protocol fusion encapsulation and transmission. While ensuring the deterministic service characteristics of the AFDX network, this system features high bandwidth, low latency, and flexible access, improving the networking quality of airborne heterogeneous networks.

The invention discloses an ARINC664 network virtual link allocation method based on an incremental mode, and the method comprises the steps: generating a historical connection relation table C1 according to the virtual link configuration of a previous version, and generating a current demand connection relation table C2 according to a latest interface control file; comparing the element sets of C1 and C2 by tuple, and judging whether the transmitting-receiving relationship is consistent or not; if C1 is equivalent to C2, the virtual link architecture is not changed, the original ID and Guid are directly reused, and the attribute of the virtual link is recalculated; and if C1 is not equal to C2, it is indicated that port addition and deletion or relation change exists, an old link is deleted, a new link is generated according to C2, and a new ID and Guid are allocated. According to the method, the problems of attribute inconsistency, resource waste and compatibility caused by a traditional full-quantity distribution mode are solved, and'minimum regeneration 'of the virtual link is realized.

Systems and methods for a cloud-based server system configured for on-demand autonomous (ODA) services are disclosed. The cloud-based server communicates with a first vehicle and a second vehicle to receive a trip request for the ODA service from the first vehicle and to identify one second vehicle by broadcasting the trip request to the set of second vehicles, seeking an agreement to establish a virtual link with the first vehicle to the second vehicle; to identify a second vehicle from submitted responses to perform a matching operation between the first vehicle and the second vehicle based on an application using a modeled clone with a set of functions; and to coordinate responses to confirm acceptance of the agreement based on results of the matching operation; and to create a trip plan for a trip request for ODA services based on a set of preferences received from each vehicle.

The application relates to a resource allocation method and system based on virtual optical network mapping. The method comprises the following steps: obtaining a virtual optical network; calculating a first time delay resource sensitivity according to a virtual link, and generating a virtual link mapping set in descending order according to the first time delay resource sensitivity; calculating a second time delay resource sensitivity according to a physical link, and generating a physical link mapping set in descending order according to the second time delay resource sensitivity; calculating a shortest path of the physical link, and generating a space division multiplexing data center elastic optical network mapping graph according to the shortest path and the second time delay resource sensitivity; mapping the virtual link to the physical link according to the space division multiplexing data center elastic optical network mapping graph, the virtual link mapping set and the physical link mapping set, and generating a first mapping result; mapping the virtual node to the physical node according to the first mapping result, and generating a second mapping result; and allocating a frequency spectrum resource according to the second mapping result. The purpose of improving resource efficiency and network resource utilization rate is achieved.

This invention discloses a method for spatiotemporal coordination and incentive of adjustable loads in the power market based on virtual links, comprising the following steps: establishing a set of adjustable load resources and their adjustment capacity boundaries; constructing a virtual link network of adjustable loads in the spatial-temporal dimensions; constructing a power market clearing optimization model including virtual links, setting the objective function and various constraints; solving the market clearing model to obtain the marginal electricity price and resource scheduling results of each node; and calculating the load migration compensation revenue based on the price difference between the start and end nodes of the virtual links. This invention can uniformly model the adjustability of loads in time and space, realize the internalization of costs and the explicitness of value of load migration behavior through virtual links, and balance economic efficiency and feasibility. It not only improves the adjustment capacity and market operation efficiency of the power system, but also effectively enhances the system's ability to maintain power balance in the spatiotemporal dimensions, and has good scalability and engineering adaptability.

The invention relates to a virtual link access method and device and electronic equipment, and is applied to a server side, and the method comprises the steps: responding to an access request of a user for a virtual link, and obtaining user behavior information and environment information; the user behavior information is corresponding information when a user interacts with a server, and the environment information is information corresponding to a network where the user equipment is located and the user equipment when the user equipment uses the token; generating a token according to the user behavior information and the environment information; the token has a corresponding period of validity and complexity; and sending the token to user equipment of the user, so that the user accesses the virtual link through the user equipment according to the token. According to the embodiment of the invention, the token is dynamically generated according to the user behavior information and the environment information, and the token has the corresponding period of validity and complexity, for example, the complexity of the token can be improved and the period of validity can be shortened in a high-risk scene, so that the security risk can be reduced when the virtual link is accessed based on the token.

An interconnect isolation system includes a shared memory, at least one processing circuit, and an interconnect. The at least one processing circuit is arranged to execute a plurality of virtual machines (VMs). The interconnect is shared by the plurality of VMS, and includes at least one interconnect node. The at least one interconnect node includes at least one transmission circuit, wherein each of the at least one transmission circuit comprises a plurality of virtual links, the plurality of VMs are mapped to the plurality of virtual links, and each of the plurality of VMs transmits a transaction to the shared memory through a mapped virtual link.

The present disclosure provides a message transmission method and device, which are applied to a network security device including multiple virtual devices. The method comprises: receiving a service message; in a case where a next-hop device of the service message is a first virtual device in the multiple virtual devices, constructing a virtual link based on a target routing table; the target routing table includes a route, the route indicates a forwarding path composed of a virtual interface, and the virtual link is a virtual link between a target ingress interface of the service message and a virtual interface of the first virtual device; and sending the service message to the first virtual device through the virtual link. According to the embodiments of the present disclosure, a virtual link is created between virtual devices, and cross-virtual-device service message transmission is performed, which is beneficial to reducing consumption of physical interface resources and breaking through a bottleneck of communication of multiple virtual devices.

This invention relates to the field of protocol conversion and transmission technology, specifically an FPGA-based AFDX to Aurora protocol transmission and conversion system. The system includes: an AXI-AFDX module responsible for parsing and encapsulating standard AFDX frame signals, and separating AFDX control signals from data signals; an AFDX over Aurora module that achieves cross-clock domain synchronization by storing control and data signals separately in dual FIFOs, extracting frame groups in an orderly manner based on virtual link static priority scheduling and same-priority polling mechanisms, and encapsulating them into IP frame format with extended fields to ensure that critical AFDX control information is not lost during Aurora transmission; and an Aurora protocol module that performs bidirectional conversion between IP frame signals and Aurora protocol high-speed serial signals, adapting to external GT high-speed interfaces. This invention achieves reliable transmission to high-speed serial links.