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27 results about "Packet matching" patented technology
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Data distribution method and device, electronic equipment and storage medium
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.
Owner:CHINA TELECOM CORP LTD
Efficient multi-packet matching fusion method and device based on connected graph, medium and equipment
ActiveCN116412800BDoes not rely on uniquenesslow costImage enhancementImage analysisGeometric consistencyAlgorithm
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.
Owner:MOMENTA (SUZHOU) TECHNOLOGY CO LTD
An elevator module power failure alarm method and device, electronic equipment and storage medium
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.
Owner:北京云迹科技股份有限公司
ACL rule processing method and device, product, equipment and medium
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.
Owner:HANGZHOU YOUYUN TECH CO LTD
Data storage method, device, equipment and storage medium
ActiveCN115309323BInput/output to record carriersRedundant data error correctionData packEngineering
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.
Owner:NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
Vehicle cooperative positioning method and device in vehicle fleet, storage medium and electronic equipment
PendingCN122269241ASynchronisation arrangementParticular environment based servicesData packIn vehicle
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.
Owner:SUZHOU YUECHUAN TUOJING TECHNOLOGY CO LTD
Packet processing method and device based on FPGA and intelligent network card
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.
Owner:HANGZHOU XINQI ELECTRONIC TECH CO LTD
Packet metadata capture in a software-defined network
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.
Owner:CISCO TECHNOLOGY INC
Packet forwarding method and apparatus, network device, and storage medium
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.
Owner:HUAWEI TECH CO LTD
SD-WAN architecture-based wide area network flow management method and system
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.
Owner:BEIJING TIANHONG HUITONG NETWORK TECHNOLOGY CO LTD
Method, device and equipment for verifying data processing link based on multiple monitoring nodes
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.
Owner:SHANGHAI SUIYUAN TECH CO LTD
Method and apparatus for determining slice information, storage medium, and electronic device
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.
Owner:ZTE CORP
A data management system based on data fusion
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.
Owner:BEIJING LONGVIEW TECH CO LTD
Enhanced parallelism in DOCSIS filter group processing
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.
Owner:HARMONIC INC
Data transmission method, device and equipment and computer readable storage medium
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.
Owner:SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
System and method for determining flow specification rules for communication packets
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.
Owner:HUAWEI TECH CO LTD
A data transmission method, system, device and medium of a switch
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.
Owner:SHANGHAI KUAN YU IND NETWORK EQUIP CO LTD
Communication method, device, equipment, storage medium and program product
Owner:JD DIGITS HAIYI INFORMATION TECHNOLOGY CO LTD
Two-layer network security defense method and device and electronic equipment
The invention discloses a two-layer network security defense method and device and electronic equipment, and relates to the technical field of computer network and information security, and the method comprises the steps: receiving a first data packet reported by a virtual switch; according to the network topology information of the virtual switch, performing abnormal flow judgment on the first data packet to identify whether the first data packet is two-layer abnormal flow; when it is determined that the two-layer abnormal traffic exists, generating an interception suggestion and sending the interception suggestion to the virtual switch to request confirmation; and in response to the received confirmation response of the virtual switch, triggering the external physical switch to intercept the subsequent data flow matched with the first data packet at the entrance of the two-layer network, thereby solving the technical problem that the network is impacted by the flow since the two-layer network security defense scheme cannot intercept the abnormal flow to enter the host machine in advance, and improving the security of the two-layer network. The technical effect of improving the security of the two-layer network is achieved.
Owner:JINAN INSPUR DATA TECH CO LTD +1
A network management method, device, system, storage medium and computer program product
The application discloses a network management method, device, system, storage medium and computer program product, the method comprises the following steps: if a first data packet with a target address is received, a first firewall matching function corresponding to the first data packet is matched; wherein the first firewall matching function is an encrypted firewall function set in a first cloud server by a target device, and the target address corresponds to the target device; firewall rule identification information corresponding to the first data packet and the first firewall matching function is sent to a second cloud server; wherein the firewall rule identification information is used for enabling the second cloud server to determine target action information corresponding to the first firewall matching function, and processing the first data packet according to the target action information, the second cloud server provides at least a second network function for the target device, improves the cloud firewall protection function, and reduces the possibility of enterprise attack and data leakage.
Owner:CHINA MOBILE (SUZHOU) SOFTWARE TECH CO LTD +1
A rule prefix space based online packet classification method
The present application relates to a kind of online packet classification method based on rule prefix space, first initialization rule grouping mapping table and rule split mapping table, respectively for recording rule grouping that rule is assigned to, whether the split of a rule occurs.Record addition and deletion rule, carry out packet classification such as operation can be carried out after the initialization of two mapping tables, when adding rule, scale to rule prefix space, it is added to suitable rule grouping;When deleting rule, it is realized fast processing by the record of two mapping tables.The present application has the advantages that rule prefix space is scaled, and the number of rule grouping is reduced;When selecting rule grouping, optimization is carried out based on priority, so that high priority rule is mainly concentrated in the front rule grouping, while guaranteeing rule update performance, the packet matching rate is improved.
Owner:BEIHANG UNIV
Multi-path multi-packet matching and fusion method and device based on loop segmentation judgment
ActiveCN116412801BDoes not rely on uniquenesslow costImage enhancementImage analysisFeature extractionAlgorithm
This application discloses a multi-path, multi-packet matching and fusion method based on loopback segmentation judgment, belonging to the field of map data processing. The method includes acquiring multiple low-precision map packets from the same task; determining whether each low-precision map packet contains backtracking paths and segmenting backtracking paths to obtain low-precision single-packet maps; in each low-precision single-packet map, generating a corresponding sub-map with a fixed range, using randomly selected data elements as center points; simultaneously performing feature extraction and automatic matching on the two sub-maps corresponding to each center point of every two adjacent low-precision single-packet maps to obtain matching scores for different data elements between the two sub-maps; and determining the object corresponding to the most certain match that meets geometric consistency based on the matching scores. This application can save equipment costs, overcome the reliance on the uniqueness of map elements in existing technologies, and the established low-precision single-packet maps facilitate subsequent matching.
Owner:MOMENTA (SUZHOU) TECHNOLOGY CO LTD
ECMP-based message forwarding methods, apparatus, devices, and storage media
This invention discloses a packet forwarding method, apparatus, device, and storage medium based on ECMP. In this method, the packet forwarding is primarily implemented in hardware. After receiving the original packet, the hardware determines whether a target routing flow table matching the original packet exists. If it does, the ECMP routing forwarding action is directly executed using the target routing flow table. If not, the original packet is sent to software so that the software performs ECMP routing forwarding on the original packet and offloads the generated routing flow table to the hardware. Therefore, this solution, after performing ECMP routing forwarding on the original packet using software, requires offloading the generated routing flow table to the hardware. Subsequently, when the hardware receives a packet matching the routing flow table, it can directly execute the ECMP routing forwarding action, avoiding the resource consumption associated with software-based ECMP implementation and reducing the data processing burden on the software.
Owner:ZHUHAI XINGYUN ZHILIAN TECH CO LTD
Hardware acceleration encryption method and system based on chip data encryption
PendingCN121706150ADigital data protectionInternal/peripheral component protectionComputer hardwareMultiple encryption
The invention relates to the field of information security, and discloses a hardware acceleration encryption method and system based on chip data encryption, and the method comprises the steps: collecting system load and data flow, obtaining real-time task distribution, and if the number of tasks exceeds a task number threshold value, activating parallel and outputting task groups; for independent paths compatible with packet matching and hard acceleration, evaluating the safety of each path, if the safety is lower than a path safety threshold value, adjusting encryption parameters, carrying out load balancing distribution, and outputting safety strength configuration; according to the security intensity configuration, issuing a cooperation instruction to the multiple encryption units, ensuring that key tasks and timestamps are synchronously generated into a synchronous encryption sequence, monitoring real-time processing delay, and when the real-time processing delay exceeds a preset processing delay threshold value, redistributing a path and outputting an adjustment plan so as to schedule a low-efficiency area and integrate feedback to stabilize throughput; extracting vulnerabilities, performing encryption reinforcement to construct an overall framework, analyzing historical log verification cooperation efficiency and outputting a final hardware acceleration encryption scheme, and the real-time performance and security during data encryption can be improved.
Owner:SHENZHEN HONGRUNXIN ELECTRONICS CO LTD
Multi-level TCAM matching in network device
The network device generates one or more search keywords including information retrieved from one or more fields in a header of a data packet processed by the network device. The network device performs a first level search in a first level memory to map one or more search keywords to one or more search keyword identifiers. Each of the one or more search keyword identifiers is shorter than a corresponding search keyword identifier of the one or more search keywords. The network device also performs a second level search in a second level memory based on a combination of the one or more search key identifiers to identify an entry that matches the combination of the one or more search key identifiers. The entry indicates a processing rule matched by the data packet. The network device performs an action associated with the rule for the data packet.
Owner:INFINEON TECHNOLOGIES AMERICAS CORP
Message forwarding method, network equipment and computer readable medium
PendingCN121967307AControl and manage trafficImprove transmission efficiencyTransmissionComputer networkTelecommunications
The invention provides a message forwarding method. The method comprises the following steps: receiving a service message to be forwarded; determining a target service message matched with the message information of the target service from the service messages to be forwarded; and forwarding the target service message through the special member tunnel in the tunnel group. The invention further provides network equipment and a computer readable medium.
Owner:ZTE CORP
System and method for determining flow specification rules for communication packets
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.
Owner:HUAWEI TECH CO LTD