55 results about "Packet matching" patented technology

The invention discloses a data distribution method and device, electronic equipment and a storage medium, the data distribution method is applied to a distribution server deployed at a network side, and comprises the following steps: obtaining distribution characteristic statistical data of a target data packet to be sent by terminal equipment; inputting the distribution characteristic statistical data of the target data packet into a first data distribution decision network to obtain a first distribution confidence coefficient of the target data packet matched with each transmission path; inputting the distribution characteristic statistical data of the target data packet into a second data distribution decision network to obtain a second distribution confidence coefficient of the target data packet matched with each transmission path; and matching the first distribution confidence coefficient and the second distribution confidence coefficient of each transmission path based on the target data packet, and determining a target distribution strategy of the target data packet. By applying the technical scheme provided by the invention, the distribution strategy of the uplink data packet of the terminal equipment can be accurately and effectively determined, and the data transmission efficiency is improved.

Various embodiments include methods of managing mixed data flow types in communications in a network apparatus. The network apparatus may determine data flow priority levels of a plurality of data flows, identify high-priority data flows associated with a particular LAN interface, and assign a designated public IP address range or a designated public port range for the high-priority data. Upon receiving an uplink, the apparatus may select a source port number from the previously reserved range dedicated for high-priority data flows in response to the received packet matching one or more prioritized data flow packet filters, modify the received uplink packet, and forward the modified uplink packet to the next hop in the path towards the destination IP address in response to determining that the packet is enqueued successfully.

The present application provides a communication method applicable to a dual connectivity (DC) scenario. The method is applied to a master node MN. The method comprises: receiving QoS parameters of a PDU set, and sending first indication information to a core network, wherein the first indication information is used for indicating the PDU set processing capability of a QoS flow of the master node MN and / or a secondary node SN. The master node MN can acquire the PDU set processing capability of the secondary node SN by means of an Xn interface interaction process. In the DC scenario, the method can ensure that an access network device receives a data packet matching the device capability of the access network device, thereby improving the service experience of users.

A method and system provide a BKAS addressing scheme. The scheme enables the encoding of disjoint intervals in each addressing block of an IPv6 / IPv4 address. This scheme permits a better flexibility in IP packet matching and an improved implementation of security policies by highly compressing the number of rules and offering much more expressivity in their semantics. This simplifies the configuration of security and network devices while significantly reducing the configuration anomalies. Furthermore, an efficient matching algorithm and a set of transitional methods are also provided. A BKAS design strategy for network subnetting is also provided, allowing for the elimination of all overlaps in the configuration rules of network and security devices while avoiding a combinatorial explosion of the number of configuration rules. The BKAS addressing scheme can be included in any hardware and software program.

The application discloses a multi-pack efficient matching fusion method based on a connected graph, and belongs to the field of map data processing. The method comprises the following steps: in K low-precision single-pack maps passing through a same center point, two subgraphs corresponding to a same center point in each two adjacent low-precision single-pack maps are automatically matched, and the same center point in the K low-precision single-pack maps is sequentially connected, so that a matching score corresponding to different data elements between each two subgraphs in a complete connected graph is obtained, and an object corresponding to a most confident matching meeting geometric consistency is determined according to the matching score; and the two subgraphs passing through a same center point in each low-precision single-pack map and another low-precision single-pack map with the largest overlapping area are automatically matched, so that an object corresponding to a most confident matching meeting geometric consistency is determined. The application saves the equipment cost, reduces the complexity of calculation, guarantees the stability of matching, and does not depend on the uniqueness of map elements.

The invention relates to the technical field of communication, in particular to an accurate matching table storage and query system and method. The system comprises a flow table preprocessing software module and a flow table query hardware module, and the flow table preprocessing software module is used for calculating the relative storage position of a flow table item by using a uckoo hash algorithm and storing the flow table item into one sub-table of an accurate matching table based on the relative storage position; flow table item data including the flow table items and the relative storage positions of the flow table items are sent to a flow table query hardware module; and the flow table query hardware module is used for performing matching by utilizing a uckoo hash algorithm to obtain a relative storage position of a flow table item and implementing accurate matching. According to the invention, the flow table preprocessing software module determines the storage position of the flow table item in advance, so that the storage workload of the flow table query hardware module is reduced, and the resources of the flow table query hardware module are saved. Meanwhile, during query, the relative storage position of the matched flow table item is directly obtained through the hash function, and the data packet matching and searching speed is increased.

The invention discloses a task cooperation management method and system based on an offline application, and relates to the technical field of offline data management, and the method comprises the steps: determining a task cooperation type, and obtaining a cooperation task resource package; generating a task collaboration system environment based on the collaboration task resource bundle; receiving collaborative data, predicting the modification probability of the collaborative data through a pre-trained prediction model in the collaborative task resource packet, and performing early warning and verification on the collaborative data with a high risk prediction result; and compressing and packaging the collaborative data according to the collaborative task type, and uploading the packaged collaborative data through a priority scheduling mechanism when network connection is recovered. Through the fusion technical scheme of intelligent resource packet matching, generation of a system environment with edge calculation, pre-training model early warning verification and priority scheduling uploading, the resource packet mismatching and parameter error rate are effectively reduced, meanwhile, the uploading delay is reduced, and the offline cooperation efficiency and the data reliability are improved.

Various embodiments include methods of managing mixed data flow types in communications in a network apparatus. The network apparatus may determine data flow priority levels of a plurality of data flows, identify high-priority data flows associated with a particular LAN interface, and assign a designated public IP address range or a designated public port range for the high-priority data. Upon receiving an uplink, the apparatus may select a source port number from the previously reserved range dedicated for high-priority data flows in response to the received packet matching one or more prioritized data flow packet filters, modify the received uplink packet, and forward the modified uplink packet to the next hop in the path towards the destination IP address in response to determining that the packet is enqueued successfully.

The invention discloses a communication data transmission control system and method, and the method comprises the steps: analyzing a data transmission mode matched with a user request, matching a node for the user request according to the data transmission mode, analyzing and processing the load of the node, deploying the user request, and analyzing the load of a transmission link and a transmission node. The method further analyzes the influence of target data corresponding to a user request on a transmission link and a transmission node, evaluates the performance score of a transmission path constructed by the transmission link and the transmission node, matches the transmission path for a data packet, and can accurately analyze the performance of the transmission node and the transmission link by analyzing the load condition, resource margin and the like of the transmission path. Therefore, the optimal transmission path can be selected to transmit the data packet, the congestion in the data transmission process is avoided, the time delay of data transmission is greatly reduced, and the method has the characteristics of improving the resource utilization rate and reducing the time delay.

The application provides an elevator module power-off alarm method and device, electronic equipment and storage medium. The method comprises the following steps: collecting the main power supply voltage of the elevator module, and monitoring the voltage change rate of the standby energy storage unit; determining the power-off confidence according to the main power supply voltage and the voltage change rate; activating the hierarchical hibernation sequence according to the power-off confidence; based on the hierarchical hibernation sequence, calling the pre-stored elevator position code and elevator identity code, and establishing a communication link with the cloud through the 4G module; combining the elevator operation state log to generate a diagnostic code containing fault cause probability analysis; encapsulating the elevator identity code, the diagnostic code and the timestamp into a digitally signed data packet, and uploading it to the cloud through the communication link; analyzing the data packet, matching the geographic location database, generating an elevator location alarm map with fault confidence and pushing it to the operation and maintenance terminal. The application can intelligently diagnose the power-off cause, accurately locate the fault position and timely notify the operation and maintenance personnel, thereby improving the safety and operation and maintenance efficiency of the elevator system.

The invention provides an ACL rule processing method and device, a product, equipment and a medium. The method comprises the following steps: generating a source code based on a pre-configured ACL rule according to a preset conversion rule; compiling the source code to generate a dynamic link library; a dynamic link library is loaded, a target function is obtained from the loaded dynamic link library, the message matching logic is used for determining whether the data message conforms to an ACL rule or not, and the action execution logic is used for determining a message processing instruction corresponding to the ACL rule; and for the data message to be processed, executing the message matching logic to obtain a matching result, and executing the action execution logic corresponding to the matching result, so that the real-time analysis or compiling overhead of the ACL rule can be saved, the compiled message matching logic and action execution logic can be directly executed, any field in the message structure is flexibly quoted as the matching content, and the matching efficiency is improved. The support range of the message matching logic is expanded by using the self-defined matching function, so that the message processing efficiency and expandability are improved.

The invention provides a network configuration method, electronic equipment and a network configuration system. The network configuration method can be applied to systems of mobile terminals and printers such as mobile phones and tablet personal computers. When the mobile terminal finds the printer, the product identifier of the printer can be obtained. The mobile terminal can determine the protocol type of the printer through the product identifier, further obtains a protocol packet matched with the printer, and then sends the configuration information of the current local area network to the printer through the protocol packet to control the printer to be accessed to the local area network where the mobile terminal is located. Thus, a user does not need to manually download a specific application program, the network is simply and rapidly configured for the printer, and then the printing service provided by the printer is rapidly experienced.

The application discloses a data storage method, device, equipment and storage medium. The method comprises the following steps: obtaining a plurality of data packets of an SWC; determining a data block matched with each data packet based on a preset rule; wherein each data block is used for storing a plurality of data packets; storing each data packet into the data block matched with the data packet; determining a to-be-stored data block based on a plurality of data blocks; and storing the to-be-stored data block into an NVM module. The technical scheme of the application stores several data packets into one data block, reduces the number of data blocks in the data storage unit, shortens the length of the to-be-stored queue, and then greatly shortens the queue polling time when the NVM main function is polled to process the to-be-stored queue, thereby improving the efficiency of storing the data packets in the SWC into the NVM module.

Methods and apparatus for a programmable IO device interface are provided. The apparatus may include: a first memory unit on which a plurality of programs are stored, the plurality of programs being associated with a plurality of actions including updating a memory-based data structure, inserting a DMA command, or initiating an event; and a second memory unit for receiving and storing table results, and the table results are provided by a table engine configured to perform a packet matching operation on (i) a packet header vector included in a header portion and (ii) data stored in a programmable match table; and circuitry for executing a program selected from the plurality of programs in response to the table results and an address received by the apparatus, the program being executed until completion and the program being associated with the programmable match table.

The invention discloses a yacht industry full life cycle management system and method based on an intelligent platform, and relates to the field of platform data management. Yacht life cycle data packets in a database of the intelligent platform are constructed to obtain life cycle stage classification data packets, and service information characteristics of new enterprises are combined to obtain yacht life cycle stage classification data packets; and substituting the new enterprise service type proportion deviation value, the comprehensive service performance index and the service stage matching degree index into logistic regression calculation to obtain a matching evaluation coefficient, comparing the matching evaluation coefficient with a preset matching threshold value, obtaining a probability of integrating new enterprise data into a new data packet according to the strong association data packet and the matching data packet, and obtaining a new enterprise data packet matching result according to the probability of integrating the new enterprise data into the new data packet. According to the enterprise cooperation times and the enterprise service content repetition degree in the classified data packets in the life cycle stage, fuzzy logic is substituted for fuzzy reasoning, a new data packet integration result is obtained, all stages of the yacht industry are covered, data communication is achieved, meanwhile, the data size of the data packets is prevented from being too large, and the system jamming probability is reduced.

Embodiments of the present application provide a vehicle cooperative positioning method and device in a vehicle fleet, a storage medium and an electronic device, wherein each vehicle in the vehicle fleet is configured with a preset synchronization word, and a data packet of each vehicle includes the preset synchronization word and a data frame for carrying positioning data, and the data frame in the data packet of each vehicle is a CRSF telemetry frame; the method comprises: extracting the synchronization word in a first data packet of a target vehicle; in response to the synchronization word in the first data packet matching the preset synchronization word, analyzing a first data frame in the first data packet to obtain a vehicle identifier of the target vehicle and positioning data of the target vehicle; in a case where the vehicle identifier of the target vehicle and the positioning data of the target vehicle are obtained, updating the positioning data of the target vehicle to a cooperative database locally of the vehicle based on the vehicle identifier of the target vehicle; and based on the cooperative database, rendering a position point of each identified vehicle on a regional map preloaded in the vehicle.

This application discloses a packet processing method, apparatus, and smart network interface card (NIC) based on FPGA, applied in the field of communication technology. By configuring different first and second rule templates in a first dual-port RAM (different dual-port RAMs can be configured with different rule templates), the method simultaneously performs rule matching on the packets to be processed through the first and second ports of the first dual-port RAM to obtain the first and second matching results corresponding to each first dual-port RAM, thereby determining the forwarding strategy for the packets to be processed. This application can provide multiple types of matching rules based on the limited system resources of FPGA and can improve packet matching efficiency.

In one embodiment, a switch in a software-defined network receives a packet sent by an endpoint device via the SDN. The switch makes a copy of the packet based on one or more header fields of the packet matching one or more flow table entries of the switch. The switch forms telemetry data for reporting to a traffic analysis service by applying a metadata filter to the copy of the packet. The metadata filter prevents at least a portion of the copy of the packet from inclusion in the telemetry data. The switch sends the formed telemetry data to the traffic analysis service.

The invention relates to a network flow application identification method and system based on a dynamic rule, and the method comprises the steps: responding to a received message, analyzing the message, and checking the flow information of the message; if the flow information contains the APPID, applying the APPID to the message and the flow information and ending; if not, identifying the message through a preset message matching rule, acquiring the APPID and applying the APPID to the message and the flow information; if the identification of the message matching rule fails, extracting message feature information based on a preset feature extraction rule, identifying the feature information through the preset feature matching rule, obtaining APPID and applying the APPID to the message and flow information; and if feature extraction or feature matching fails, identifying the message through a preset dynamic rule, obtaining the APPID and applying the APPID to the message and the flow information. The identification rule is automatically generated through a small number of rules, and the maintenance cost is reduced. APPID is returned in advance by using a flow table and packet counting, so that the performance is improved. The dynamic rule adopts IP + PORT or IP identification, and the identification result APPID is updated to message and flow information.

A packet forwarding method implemented by a head node, includes receiving a first packet and a second packet, where the first packet is a packet forwarded by using a first network slice, and the second packet is a packet forwarded by using a second network slice; in response to the first packet matching a first segment routing policy, generating a third packet based on the first packet, where the third packet carries slice information of the first network slice and a first SID list; in response to the second packet matching the first segment routing policy, generating a fourth packet based on the second packet, where the fourth packet carries slice information of the second network slice and the first SID list; and forwarding the third packet and the fourth packet.

The invention discloses a wide area network flow management method and system based on an SD-WAN architecture. The method comprises the following steps: constructing a flow table level-to-level management mechanism based on use frequency, and dividing flow table items into a high-priority flow table set and a low-priority flow table set according to use frequency values; constructing a flow table association prediction mechanism, and establishing a prediction model; establishing a multi-stage flow table storage structure at a network node; when the data packet arrives at the network node, flow table entries matched with the data packet are queried in the first-level storage area, the third-level storage area and the second-level storage area in sequence; if the matching is successful, forwarding the data packet by using the matched flow table item, and sending a prediction request to the controller to trigger associated flow table prediction; if the matching fails, requesting to generate a new flow table item from the controller; in order to solve the problem that passive flow table management causes new flow first packet forwarding delay and seriously affects the service quality of delay-sensitive applications, the first packet forwarding delay is reduced to be close to zero delay.

The embodiment of the application discloses a kind of data processing link verification method, device and equipment based on multiple monitoring nodes.The method comprises the following steps: obtaining a set of expected data packets;At different links of the data processing link, at least two monitoring nodes are used to collect data packets respectively, to obtain at least a first set of collected data packets and a second set of collected data packets;Based on the characteristic identification information carried in the data packets, a data packet matching relationship is established between the set of collected data packets and the set of expected data packets, and the data packet matching relationship is independent of the order of the data packets in the collection sequence;Based on the data packet matching relationship, data packet content verification is performed, and based on the respective matching verification results of each monitoring node, the abnormal occurrence position is determined.The application can realize multi-source data collection, solve the problem of inconsistent data sequence caused by multi-thread parallel packet sending, and improve the accuracy, flexibility and problem positioning ability of data verification.

A method and apparatus for determining slice information, a storage medium, and an electronic device. The method includes: receiving an initial packet; determining, from pre-configured templates, a target template matching the initial packet, wherein the target template contains a target format of target slice information of a target slice associated with the initial packet; generating a target packet based on the initial packet and the target template, wherein the target packet contains the target slice information in the target format; and sending the target packet to a receiving end to instruct the receiving end to execute following operations: parsing the target packet based on the target template, so as to determine the target slice information.

The application relates to the technical field of data management, in particular to a data management system based on data fusion, which comprises a collection layer, a processing layer, an analysis layer and an application layer. The collection layer acquires data and performs preliminary processing on the data, that is, redundant data is screened out, missing data is supplemented, so that various data formats are unified, so that the processing layer classifies and packs the data subjected to the preliminary processing to output a plurality of data packets. The analysis layer processes the data packets subjected to the packing and discrete data which are not successfully matched with the data packets, so as to further pack the discrete data. Meanwhile, the algorithm of the collection layer is further optimized according to the actual operation condition of the processing layer, and the data acquisition efficiency of the application layer is greatly improved.

Enhanced parallelism in DOCSIS filter group and Service Flow processing. A plurality of packets that have been transmitted across a computer network are received. A responsive action to be performed against each of the plurality of packets is determined by performing DOCSIS filter group processing on the plurality of packets using a single unified Filter Group table. The single unified Filter Group table comprises a plurality of rules that each define a set of criteria and a particular responsive action to perform against any packet matching the set of criteria for that rule. The plurality of rules in the single unified Filter Group table identify, in their sets of criteria, different Filter Group identifiers (IDs). Thereafter, the responsive action is performed on each of the plurality of packets. A single unified classifier table may also be used to assign a Service Flow to packets with enhanced parallelism.

The invention discloses a data transmission method, device and equipment and a computer readable storage medium, which are applied to the field of data transmission and an on-chip network router, and comprise the following steps: when a data packet is received, extracting length information and meta information of the data packet; determining the length type of the data packet according to the length information and a preset dynamic threshold value; performing semantic analysis on the meta-information, and determining the semantic type of the data packet according to the current service scene; according to the length type and the semantic type, determining a target buffer area matched with the data packet and an output priority of the data packet in the target buffer area; and calling the target buffer areas in sequence according to the inherent priority sequence among the buffer areas, and outputting the data in the target buffer areas in sequence according to the output priority in the same target buffer area. According to the invention, differentiated resource allocation of the data packets is realized, transmission delay of emergency / high real-time data is effectively reduced, and resource waste or data congestion caused by a single scheduling rule is avoided.

A method, in which a first network device obtains a first service packet and a plurality of flow specification FlowSpec rule groups, where any FlowSpec rule group in the plurality of FlowSpec rule groups indicates a rule set for processing a service packet, and different FlowSpec rule groups correspond to different priorities. The first network device determines a target FlowSpec rule group, where the target FlowSpec rule group is a FlowSpec rule group in the plurality of FlowSpec rule groups that successfully matches the first service packet and that has the highest priority. The first network device processes the first service packet according to the target FlowSpec rule group. A service packet is processed according to a FlowSpec rule group, so that processing efficiency can be improved.

The application provides a data transmission method, system, device and medium of a switch, the method comprising: constructing a plurality of protocol field templates; receiving a target data packet, parsing and encapsulating key fields in the target data packet based on the protocol field templates, and constructing standardized key field data; matching the standardized key field data with a semantic mapping table, selecting a semantic matching rule, annotating the target data packet with a semantic label according to the semantic label of the semantic matching rule, and encapsulating the target data packet, a matching rule identifier and a label level into target data packet semantic analysis data; annotating the target data packet with a semantic label by using a label level priority strategy, a matching rule confidence priority strategy, a field weight mean ordering mechanism and a matching rule identifier comparison mechanism; and when the target data packet matches a plurality of semantic matching rules, sequentially ordering the semantic matching rules according to the label levels of the semantic matching rules from urgent, important to general.

The invention relates to the technical field related to network security, in particular to an ip white list merging statistical algorithm method, device and equipment based on a red-black tree. The method comprises the following steps: acquiring a white list strategy; determining an address range corresponding to each white list strategy; constructing a red-black tree based on the address range; constructing bitmap marks matched with the red-black trees, wherein the bitmap marks are used for marking white list strategies corresponding to nodes of the red-black trees; and based on the red-black tree, address matching is carried out on a target address, and hit counts of all white list strategies are accumulated. And through the red-black tree, the message matching search efficiency is improved. Through bitmap marking, hit counts are accurately counted, and statistical distortion is solved.