84 results about "Wire speed" patented technology

A system and computer-implemented method for routing an encrypted packet through a cloud enforcement network based on a metadata tag. The cloud enforcement network applies policy and routing attributions or tags outside of the encrypted packet payload in such a way as to not require an inner packet to first be decrypted. Traffic prioritization, data protection, and per application policies are achieved by using such metadata tags for internode routing without the need for DPI or decryption. Furthermore, the metadata itself can also be signed or encrypted depending on the provenance of the data. As such, applying meta-tagging external to an encrypted packet, the payload would not be needed to be decrypted during transit of the packet to express end-to-end policy and routing decisions.

The invention discloses a server name indication SNI identification method and device based on an FPGA, and the method comprises the steps: receiving an Ethernet data packet, obtaining a 72-byte data stream for a current clock period, moving one byte from the first byte of the data stream for one time according to a sliding window with the length of 9 bytes, carrying out the interception, obtaining 64 groups of sub-data streams, and carrying out the recognition of the SNI for each group of sub-data streams, matching the sub-data stream with a preset 9-byte server name indication SNI feature code, and if the matching is successful, obtaining the successfully matched sub-data stream; determining the length of a host name according to the values of the last two bytes in the successfully matched sub-data streams, determining the byte position of a host name field in the Ethernet data packet, and extracting a host name character string from the Ethernet data packet; and if the value of the extracted host name character string meets a preset character string threshold value, outputting a corresponding host name. According to the method and the device, the host name in the Ethernet data packet can be effectively identified at a line speed.

The invention relates to a multi-tenant unified storage routing table item compression method and system based on identification mapping. The method comprises the following steps: in a routing table entry insertion stage, dynamically distributing a minimum available reduce ID for each new tenant, and ensuring that an IP prefix space of the new tenant is not overlapped with a tenant using the same reduce ID; in the lookup stage, a message VNI is firstly converted into a reduce ID through a mapping table realized based on an RAM, then the reduce ID and a destination IP are used as a joint key to look up the TCAM, and by constructing a mapping relation from the VNI to the reduce ID, the table item bit width of the TCAM is remarkably reduced on the premise of ensuring the routing correctness. The method is suitable for an IPv4 / IPv6 multi-tenant environment, the hardware area and power consumption can be effectively reduced especially in an FPGA or ASIC high-performance data plane, and meanwhile the line speed forwarding capacity is kept.

The invention discloses a fine-grained flow scheduling priority marking system for a hardware unloading network, which comprises a packet analysis module for extracting quintuple flow identification information from a data packet and supporting multi-layer protocol field extraction, and a flow table module for maintaining the real-time state of the current active data flow by adopting a double-hash table structure and supporting parallel search and update, the priority judgment module is used for allocating scheduling priorities to current messages through configurable boundary matching rules on the basis of state information returned by a flow table, the message recombination and marking module is used for encoding priority labels into DSCP fields of an IPv4 message header, and the whole system adopts a full-assembly-line hardware architecture and can be ensured to continuously run at a linear speed under a 100Gbps network load. Dynamic packet-by-packet scheduling control is supported, a scheduling priority based on a real-time flow state can be given to each data packet, and fine scheduling of network resources is realized.

The utility model discloses a high -speed spark -discharge wire cutting device with wire storage mechanism is provided in the electric spark wire cutting technical field, including the first wire storage cylinder and second wire storage cylinder of vertical setting in the wire storage box. The high -speed spark -discharge wire cutting device with wire storage mechanism, through the first wire storage cylinder and second wire storage cylinder of vertical arrangement, cooperate the sliding block of sliding setting, realize the conductive wire on the first wire storage cylinder after cutting section and set up to second wire storage cylinder, thereby realize single -layer wire storage, and the sum of the conductive wire length between first fixed pulley and first movable pulley and the conductive wire length between second fixed pulley and second movable pulley remain unchanged in the moving process of moving block, thereby realized the conductive wire moving stability, compared with existing device, avoided the problem that the wire speed changed when the electrode wire was arranged in the laminated arrangement on the wire cylinder, improved wire cutting stability.

The application discloses a multi-service traffic grouping scheduling method for a P4 switch processor core, mainly comprising a feature extraction method based on a statistical interval and a Sketch, comprehensive data packet time correlation and traffic dynamic change, an optimized Bloom filter conflict detection mechanism, improved adaptability and accuracy of the algorithm in a limited resource environment; a decision tree model is combined with scheduling, a decision tree is reconstructed to adapt to a P4 switch operation mode and data processing demand, high-precision service flow classification under line-speed operation is ensured; a grouping scheduling method AD-PIFO is designed based on variable priority, data packet forwarding priority is dynamically adjusted, different service QoS demand is met, and the overall performance and efficiency of the switch are improved. The method is outstanding in high-priority traffic throughput and low-latency performance, and the medium-low-priority traffic throughput is better than that of similar algorithms, is stable and effective under different load conditions, has reasonable additional time overhead of data packet transmission, and is widely used in SDN network optimization data packet scheduling scenes.

The invention relates to a dynamic purification method for 5G user plane traffic. The method comprises the following steps: receiving mixed user plane traffic in a network, preprocessing the received traffic, analyzing the preprocessed traffic according to a message header feature and an extension structure of a user plane bearer protocol, and dynamically identifying and separating out 5G user plane data stream; performing application layer depth detection on the identified 5G user plane data stream, identifying a second type of service data stream established based on the session control signaling, and analyzing a dynamic transmission channel parameter of the second type of service data stream; generating a flow filtering strategy according to the analyzed dynamic transmission channel parameters; and executing a dynamic strategy to carry out linear speed filtering on the 5G user plane data stream. The 5G user plane data flow is identified by analyzing the protocol head feature and the extension structure in the user plane flow in real time, and deep detection is performed on the application layer, so that the 5G flow can be quickly screened in a high-speed network environment.

The application discloses a flat wire motor unwinding device and a control method thereof, and relates to the technical field of wire forming for flat wire motor production, and comprises an unwinding device, a tensioning and monitoring device and a copper wire buffer device. The movable guide wheel is used for tensioning and real-time adjustment of copper wire tension. The unwinding belt is used for isolating the wire coil from the wire pulling component, and the tensile force borne by the copper wire is reduced by more than 30%. The diameter measuring sensor is used for real-time monitoring of the wire coil diameter, the PLC control cabinet is used for dynamic adjustment of the unwinding motor speed, the unwinding wire speed is matched with the unwinding belt wire speed, and constant tension is maintained. The copper wire buffer space is used for storing redundant copper wire through a multi-layer guide wheel structure, and the wire length PID closed-loop control of the unwinding belt and the wire pulling component is combined to realize continuous unwinding. The accumulated wire feeding length matching algorithm is used for smooth processing of signals, and the number of motor start-stop times is reduced by more than 50%, and the equipment service life is prolonged. The application provides key technical support for efficient and high-quality production of flat wire motors, and has remarkable economic benefits and industry popularization value.

The invention discloses a method for keeping the line width consistency of a circuit board, which is characterized by comprising an online control system, and the keeping method comprises the following steps: S1, obtaining the copper thickness of each point of a copper wire on the circuit board; s2, the liquid level of a VCP wire groove and the height of a floating plate are adjusted; s3, the line width design value is adjusted according to the copper thickness; s4, adjusting the etching line speed range according to the copper thickness; s5, monitoring the copper ion concentration in real time; and S6, determining an adjustment means according to the copper ion concentration in the etching process. The copper thickness on the circuit board is obtained in real time, and the liquid level of the VCP wire groove and the height of the floating plate are fed back and adjusted according to the difference between the copper thickness and the preset copper thickness, so that the copper thickness is accurately controlled, the subsequent etching difficulty is reduced, and the consistency of the line width of the circuit board is kept. And through an accurate dynamic compensation mode, the consistency of the finally formed line width can be maintained. According to the technical means, the stability of the forming method of the circuit on the circuit board is improved, and the CPK standard reaching rate of the circuit width of the circuit on the circuit board can be 100%.

This application provides a flow control method, an artificial intelligence distributed training method, an electronic device, a storage medium, and a program product. The method includes: acquiring traffic characteristic information of a data stream to be transmitted sent by an application layer program; generating corresponding flow table rules based on the traffic characteristic information; pre-configuring the flow table rules to a network device and controlling the flow table rules to be in an inactive dormant state; upon receiving a trigger signal sent by the application layer program, sending a control command to the network device to switch the flow table rules to an active state, so that the data stream to be transmitted is transmitted via a target path based on the active flow table rules; the trigger signal is used to instruct the data stream to be transmitted to start transmission. This avoids the problem of repeated PFC oscillations caused by switch buffer congestion due to sudden large traffic flows in traditional RoCE networks, enabling large data streams to be transmitted at a stable rate close to line speed.

The invention relates to a winding type precise coating processing device for a multi-channel flexible implanted wire. The device comprises a multi-coil pay-off mechanism, a wrapping head, a curing unit, a desolventizing unit, a drying unit, an online metering unit and a controller. A wrapping head is provided with an independent main guide belt and a soluble phase guide wire channel, and the main guide belt and the soluble phase guide wire channel are wound on the periphery of the core material in the same direction and at the same pitch when each layer of wrapping is formed; the curing unit adopts a one-time curing and final curing segmentation mode, the screw pitch and the geometric phase are locked firstly, and then the final morphology is frozen; the desolventizing unit is used for dissolving or extracting the soluble guide wire after final curing, so that residues are avoided; the on-line metering unit collects a screw pitch signal in real time, the controller carries out power spectrum analysis, and a beat frequency spectrum peak amplitude is used as a feedback closed loop to adjust the line speed and the wrapping head angular speed. According to the scheme, the beat frequency effect caused by the multi-layer pitch differential is effectively inhibited, the geometric stability of the wire is ensured, the flexibility and the insulating property are improved, no residue is ensured, and the consistency and the long-term reliability of the flexible implanted wire are remarkably improved.

The application discloses a non-sliding refractory metal hot interpass wire drawing machine, which comprises a pay-off part, a main machine part and a take-up part; a pay-off assembly is arranged at the front end of the pay-off part; the main machine part is arranged on one side of the pay-off part; and the take-up part is arranged on the side, away from the pay-off part, of the main machine part; the technical key points are as follows: the fluctuation of the metal wire caused by internal and external factors during the operation of each drawing unit can be detected separately, the wire speed of each drawing unit is adjusted according to the fluctuation, the speed rebalancing and force rebalancing between the drawing units are realized at the first time, the metal wire cannot produce sliding friction during the drawing process, constant tension, constant wire speed, non-sliding and non-friction wire stretching are realized, the manufacturing defects of the traditional wire drawing machine are avoided, and therefore, the product quality is ensured, the yield is improved, the enterprise benefit is improved, meanwhile, the metal wires of all the drawing units are guided into the same heater through the guide wheels, the energy consumed by heating is greatly saved, and the non-sliding refractory metal hot interpass wire drawing machine has a good application prospect.

A method to create a serial wire speed firewall that can monitor and enforce security policy on a CAN buy network and prevent cyber-attacks.

This application relates to a silicon wafer cutting method and apparatus. The silicon wafer cutting method includes the following steps: setting a brand-new cutting wire on a main roller mechanism, driving the cutting wire in the cutting wire mesh to run cyclically through the main roller mechanism, cutting the silicon rod entering the cutting wire mesh into silicon wafers. The cyclical running includes an initial forward run, a reverse run, and a second forward run. The silicon wafer cutting method of this application, by making the cutting wire run cyclically during the cutting process, utilizes a cutting wire three times in a reasonable manner. In the three utilization processes, the cutting depth is maximized during the initial forward run with the highest wire speed, and the cutting depth is minimized during the second forward run with the lowest wire speed. This effectively controls the cutting wire speed and cutting depth according to the wear condition of the cutting wire, so as to make full use of the cutting wire while ensuring the normal operation of the wire bow, and thus ensuring the cutting quality and the quality of the silicon wafer.

A system and method for hardware-accelerated determination of hybrid codebook performance using FPGA implementation. The system transforms the mathematical operations of estimating combined performance of primary and secondary codebooks into dedicated hardware circuits on field-programmable gate arrays. By implementing specialized components for primary term calculation, secondary term calculation, and mismatch probability estimation directly in hardware, the system enables wire-speed performance estimation without generating test codebooks. The FPGA design comprises parallel processing paths, dedicated bit manipulation circuits for logarithmic approximation, and specialized memory structures for occurrence tracking. This hardware implementation enables real-time hybrid codebook optimization in high-throughput environments such as network appliances, storage controllers, and data processing systems, while providing a development pathway toward eventual ASIC implementation for mass-market deployment.

1. Name of the designed product: secondary line speed integrated module (PT cabinet). 2. Use of the designed product: used for electrical connection or signal connection in electrical room. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view 1.

The invention relates to the technical field of copper body processing, in particular to a wire drawing device for high-speed communication copper conductor processing, which comprises a device base, a reduction gearbox is fixedly connected to the top surface of the device base, an adjustable wire spool is arranged on the outer side surface of an output shaft, and an adjusting control rod is arranged on the bottom surface of the adjustable wire spool. A wire speed adjusting shaft is arranged on the surface of the outer side of the working box, a winding column is arranged at one end of the wire speed adjusting shaft, after the adjustable wire spool is unlocked, the control shaft is inserted into different depths and rotated according to needed parallelism, the radial size of the adjustable wire spool is adjusted to the needed size, meanwhile, the angular speed of the winding column is changed through the wire speed adjusting shaft, and the winding column is adjusted to the needed size according to the needed parallelism. The driving motor adjusts the rotating speed and the torque through the reduction gearbox to drive the two output shafts to rotate, the wire drawing die head is used for wire drawing and spraying cooling liquid through the cooling spray head in the working process to conduct wire drawing of the copper wire, and the effect of parallel adjustment according to the number of times of drawing needed by the copper wire is achieved.

The application relates to a TCP maximum transmission unit dynamic adjustment method and system based on a programmable data plane, and belongs to the technical field of computer networks. Whether the length exceeds the port MTU size is judged by identifying the data packet encapsulation structure, the TCP SYN message maximum transmission unit option is dynamically corrected to inform the opposite end device to adjust the data packet size, different tunnel encapsulation structures are dynamically adapted, and the link efficiency is maximized; according to different tunnel encapsulation structures, the TCP maximum transmission unit size is dynamically adjusted, higher flexibility can be supported to be extended to other types of tunnels, the terminal device and the intermediate device are transparent, the existing infrastructure does not need to be modified, compared with software implementation, linear speed forwarding can be realized, the method has the characteristics of good expansibility and high flexibility, and the MSS size can be adjusted according to the traffic of different network states.

Techniques for utilizing a portion of a communication session identifier (e.g., a Session-ID, an SPI, a CID, a DCID, and / or the like) to indicate a target routing device (e.g., a VPN and / or ZTNA termination device) for establishing control plane session(s) and / or data plane session(s) at wire-speed in a networked computing environment. The routing device(s) of a networked computing environment may generate a communication session identifier and send the communication session identifier to the client device, such that subsequent packets send from the client device may be forwarded to the proper routing device indicated by the communication session identifier for establishment of one or more data plane sessions. Additionally, data plane sessions may be established using a Resumed Handshake rather than a full handshake that is typically required, as Session Resumption utilizes the assigned communication session identifier for mapping.

A method for measuring a line speed frame length comprises: determining a test interval as a preset frame length interval; determining a test frame length according to the test interval; determining a first frame number according to a preset bandwidth, a preset time length and the test frame length; sending a data frame of the test frame length to a network device; receiving a data frame of the test frame length sent by the network device; comparing the first frame number with a second frame number; updating the test interval to a sub-interval of the test interval according to a comparison result; triggering a second step to a seventh step when a length of the test interval is greater than a preset length; and obtaining the line speed frame length when the length of the test interval is not greater than the preset length. The method can improve the measurement accuracy with the increase of the test times. The application further provides a measuring device capable of implementing the above method.

The invention discloses a production method of a flat cable, which comprises the following steps of: S1, conductor preparation: performing back-twist twisting on a conductor wire to prepare a guide wire bundle, the back-twist rate being 100%, and the pitch being (11-13) * OD + / -1mm; s2, insulating extrusion: starting an extruder to heat and pull a guide wire bundle, and enabling the preheated guide wire bundle to pass through the extruder so as to extrude and coat an insulating layer on the surface of the guide wire bundle to form a cable; when the tow is preheated, the preheating temperature is set to be T1 based on the moving linear speed of the tow; and S3, post-processing: performing water-cooling shaping on the cable to keep the shape, wherein the water-cooling temperature is 12-18 DEG C. By heating the conductor and optimizing the synergistic effect of the insulating rubber material formula, the cable wire can simultaneously meet the requirements of zero hoisting displacement and no copper wire breakage during wire stripping; under the condition of high hoisting weight, enough adhesive force exists between the conductor and the insulating layer; and during the wire stripping operation, the adhesive force between the conductor and the insulating layer is ensured to be small, and the processing adaptability and the use reliability of the cable are improved.

The application discloses an integrated tinning machine intelligent control method and system combined with data fusion, and belongs to the field of automatic control. The method comprises the following steps: a multi-dimensional data fusion sensing step, in which the copper-clad steel wire speed, acceleration, width, yaw displacement and rectifier feedback current are acquired; a dynamic current density model construction step, in which a theoretical current reference value is output based on the Faraday electrolysis law and real-time bath parameters; a transient feedforward compensation control step, in which a current compensation amount is calculated according to the acceleration and phase delay time constant, and a predictive current control instruction is generated; and a side effect cooperative optimization step, in which the anode plate position and shielding state are dynamically adjusted according to the width and yaw displacement. The application is suitable for complex production conditions and improves the automatic operation level of the tinning machine set.

This invention discloses a programmable data plane high-intensity traffic response method and system based on feature distribution, belonging to the field of network traffic classification technology. The programmable data plane high-intensity traffic response method based on feature distribution includes: extracting features from each flow in the data plane and determining whether the features are matched by the current rule; if matched, processing according to the corresponding rule; if not matched, processing as an outlier and recording it; periodically sampling processed flows, triggering rule updates when outliers reach a preset threshold; the control plane uses a density-based clustering algorithm to cluster sampled points to obtain the current traffic feature distribution shape, extracting the boundaries of each cluster to form a high-dimensional rectangle as a new rule, and formulating corresponding processing measures based on spatial features and meta-features, and issuing them to the data plane. This invention achieves line-rate processing and dynamic adaptation on resource-constrained programmable hardware, effectively addressing feature drift under high-intensity traffic while ensuring interpretability.

The invention relates to the technical field of network communication, in particular to a programmable data packet scheduling method and system for a network switching chip, and the method comprises the steps: constructing a hierarchical scheduling tree; the hierarchical scheduling tree comprises a leaf node level and a root node level, and each node is provided with a bitmap mapping bucket queue, a dynamic priority window mapping module and a reconfigurable priority calculator. According to the method, the technical problem that an existing scheduler is insufficient in flexibility, performance and expansibility can be solved, and then multi-algorithm dynamic deployment, priority range expansion and hierarchical scheduling optimization are achieved while the linear speed processing performance is kept.

The application relates to a multi-tenant uniform storage routing table item compression method and system based on identification mapping. The method comprises the following steps: in a routing table item insertion stage, a minimum available reduceID is dynamically allocated for each new tenant, and it is ensured that the IP prefix space of the tenant is not overlapped with a tenant using the same reduceID; in a lookup stage, a message VNI is converted into a reduceID through a mapping table based on RAM, and then reduceID+destination IP is used as a joint key to query a TCAM, and the mapping relationship between the VNI and the reduceID is constructed, so that the bit width of the TCAM table item is significantly reduced under the premise of ensuring routing correctness. The application is suitable for an IPv4 / IPv6 multi-tenant environment, and can effectively reduce the hardware area and power consumption in a FPGA or ASIC high-performance data plane, while maintaining the line-speed forwarding capability.

A cloud server obtains a defined signature from a first communication device, where the defined signature is associated with a digital asset at the first communication device. The cloud server validates the defined signature based on a search of the defined signature in a main action database in the cloud server. The cloud server determines that a copyright check is required for the digital asset associated with the defined signature. The cloud server determines an occurrence of copyright violation for digital asset based on resemblance search of the digital asset in copyright database. The cloud server interrupts, based on the validation of the defined signature and the occurrence of the copyright violation, consumption of one or more data packets of the digital asset from being consumed at a datalink layer and a wire speed, prior to exposure of the one or more data packets to an application layer of the first communication device.

The application relates to the technical field of network traffic processing, and discloses a cross-message HTTP domain name matching method and system on a network distribution device. The method comprises the following steps: receiving and analyzing a TCP segment message, obtaining payload data and quintuple information, and then performing first domain name retrieval through preset head and tail anchor points. If the head and tail anchor points are simultaneously identified in a single message, the domain name information is directly extracted to complete matching. If only one of the anchor points is identified, the message is marked as a to-be-recombined message and is sent to a TCP segment recombination step. During recombination, the recombination table item of the FPGA integrated HBM is accessed based on the quintuple hash value, the payload data is written into the corresponding position, the recombined payload data is output when a preset output condition is met, and finally, second domain name retrieval is performed on the recombined data. After the head and tail anchor points are identified, the domain name is extracted to complete matching. The method realizes accurate matching of cross-message domain names under a 400G large bandwidth, takes into account single-message line-speed processing performance, solves the problem of cross-message domain name missing matching, and is suitable for network environments in which multiple websites share an IP.

The invention relates to the technical field of network flow processing, and discloses a cross-message HTTP domain name matching method and system on network shunting equipment, and the method comprises the steps: receiving and analyzing TCP segment messages, obtaining payload data and quintuple information, and executing the first domain name retrieval through a preset head anchor point and a preset tail anchor point; and if the head anchor point and the tail anchor point are simultaneously identified in the single message, directly extracting domain name information to complete matching, and if only one of the head anchor point and the tail anchor point is identified, marking the message as a to-be-recombined message and sending the message to a TCP segment recombining step. And when recombination is carried out, a recombination table item of the FPGA integrated HBM is accessed based on a quintuple hash value, payload data is written into a corresponding position, the recombination payload data is output when a preset output condition is met, finally, secondary domain name retrieval is carried out on the recombination data, and domain names are extracted to complete matching after head and tail anchor points are identified. According to the method, accurate matching of the cross-message domain names under the 400G large bandwidth is realized, the single-message line speed processing performance is considered, the problem of missed matching of the cross-message domain names is solved, and the method is adaptive to a network environment in which multiple websites share an IP (Internet Protocol).

The invention discloses a multi-wire cutting wire speed and wire length high-precision calibration control method, which aims at the problem of wire speed and wire length precision calibration in multi-wire cutting, adopts a laser Doppler velocimeter as reference calibration equipment, records data under different cutting roller diameters and tension states, and further fits corresponding adjustment parameters. And a high-precision line speed and line length calibration target is realized. By means of the method in the scheme, the system can correct and adjust the wire speed and the wire length of the cutting wire, and the wire speed and the wire length can be controlled more accurately; and moreover, the system can perform real-time and accurate compensation control on the wire speed and the wire length under any working condition based on a pre-calibrated high-precision data matrix, so that the process consistency and the control precision of multi-wire cutting are remarkably improved.

The invention provides a semiconductor wire cutting tension adjusting device and method based on neural network optimization. The semiconductor wire cutting tension adjusting device comprises an algorithm processing central system, a parameter feedback system and a material cutting system. The algorithm processing central system comprises a system controller and initial parameter input; the parameter feedback system comprises linear cutting tension feedback, working temperature feedback and real-time cutting quality feedback; the material cutting system comprises a material platform, a cutting liquid conveying device, a roller structure, a take-up and pay-off wheel and the like. The method comprises the following steps: acquiring a large amount of parameter data such as wire aperture, material characteristics, cutting wire surface quality, wire tension, wire speed, material feeding rate, working temperature, cutting liquid flow, corresponding cutting rate, cutting precision and the like during different wire cutting operations in the early stage, pre-training through a neural network, and combining with a real-time optimization algorithm to obtain optimal cutting parameters, so as to achieve the purpose of improving the cutting efficiency. Therefore, higher cutting speed and higher cutting precision are obtained.