283 results about "Transmission Control Protocol" patented technology

The invention discloses a millimeter wave radar meteorological target detection method based on deep learning, and relates to the technical field of meteorological radar processing. The method comprises the following steps: acquiring a millimeter wave radar original signal by using a transmission control protocol for preprocessing; the distance and the angle between an object and an antenna are measured through a millimeter wave radar, so that three-dimensional space coordinates of the measured object are obtained; converting the three-dimensional space coordinates through time alignment and a space coordinate system, and projecting the three-dimensional space coordinates into a visual coordinate system; pre-training a feature extractor, analyzing a data label by using ECMWF, and then performing end-to-end fine tuning; and automatically optimizing the detection threshold according to the signal-to-noise ratio, and outputting target meteorological classification, meteorological intensity and meteorological motion prediction. According to the method, the detection threshold is automatically optimized according to the signal-to-noise ratio, target classification, intensity estimation and motion vector prediction are output, weather weak signal leak detection is avoided, and the target tracking capability and the extreme weather generalization capability are improved.

A method comprises receiving one or more data packets corresponding to at least one communications protocol request, and scanning the one or more data packets to validate one or more elements corresponding to the at least one communications protocol request. The at least one communications protocol request is rejected in response to invalidating the one or more elements, and the at least one communications protocol request is forwarded to one or more servers in response to validating the one or more elements.

The invention relates to the technical field of databases, in particular to a main and standby automatic fault switching system and method based on database state awareness, and the system comprises a daemon module which is used for monitoring the operation condition of a local database in real time, and periodically publishing and updating the state information of the local database; the synchronization program module is used for regularly connecting the main database and the local database and executing a differential synchronization strategy according to different synchronization requirements and environmental factors; the main library inquiry interface module is used for sending a transmission control protocol message to the daemon module; and the coordination program module is used for executing decisions of the main and standby library roles, managing and issuing main library information, and regularly updating the main library information and database information. The multi-node daemon program, the multi-node synchronization program, the main library inquiry interface and the single instance coordination program are integrated to jointly form the database fault automatic switching system, safe and accurate automatic switching during main library fault is achieved, and the safety of the main and standby automatic switching process is ensured.

The invention relates to the technical field of digital information transmission, in particular to a protocol stack fingerprint-based host asset surveying and mapping method, which comprises the following steps of: designing a host discovery algorithm of a combined multi-protocol data packet by referring to an open system interconnection seven-layer network model layering protocol; performing feature analysis and data preprocessing based on a protocol stack fingerprint rule base of a network mapper transmission control protocol, and constructing a protocol stack fingerprint data set of a host asset operating system; the host asset operating system fingerprint identification classification model is constructed based on the random forest algorithm, the coverage rate of survival host discovery is remarkably improved, and the limitation of a traditional rule-based matching method is effectively overcome. According to the method, the accuracy rate in the fingerprint identification task of the coarse-grained operating system reaches 97%, the weighted F1 value in the fingerprint identification task of the fine-grained operating system reaches 0.87, the technical level of host asset surveying and mapping is improved, and a more comprehensive and accurate technical path is provided for network asset security assessment.

The invention provides an nginx monitoring index scheme of a message queue. The method belongs to the technical field of web performance monitoring. According to the scheme, the method comprises the steps that Filebeat serves as a log collector and is deployed on an Nginx server, and access logs and error logs of the Nginx are captured in real time; the Filebeat encapsulates the collected log data into a message, and pushes the message to a Kafka message queue through a TCP (Transmission Control Protocol); the consumer pulls the log message from the Kafka, and analyzes and processes the Nginx access log in the message; and through an intelligent aggregation algorithm, performing aggregation processing on the Request-URLs with the same service meaning, and summarizing the Request-URLs as a monitoring index set. Nginx logs are captured in real time through Filebeat and quickly pushed to Kafka, and it is ensured that a monitoring system can respond to changes in the logs in time.

The invention discloses an ALG (Application Layer Gateway) processing method and device, electronic equipment and a storage medium. The method comprises the steps that a control channel session table corresponding to a first message is detected, the control channel session table is used for recording a message load content length change difference value before and after a preset type of message is subjected to target conversion, and the preset type of message is a multi-channel protocol negotiation message based on a transmission control protocol; the target conversion is ALG application layer message information analysis and address conversion performed when passing through an NAT (Network Address Translation) router; determining a second message according to the type of the first message and a control channel session table corresponding to the first message, wherein the second message is a subsequent message which correspondingly needs to be forwarded after the first message; and carrying out forwarding processing on the second message. According to the technical scheme, the problem that the serial number operation consumption of the subsequent message after TCP message conversion in the NAT ALG scene is large is solved.

The invention relates to the technical field of Internet information, in particular to an Internet service provider-oriented encrypted multimedia traffic classification method and device.The method comprises the steps of capturing statistical characteristics, time sequence characteristics and original byte domains of target encrypted traffic to construct a multi-domain characteristic data set; simulating transmission control protocol behaviors in real network transmission according to the multi-domain feature data set to generate an enhanced data set containing transmission control protocol semantics; inputting the enhanced data set containing the transmission control protocol semantics into a pre-constructed hybrid fusion model so as to respectively extract a feature vector of each domain; and integrating the weight of the feature vector of each domain by using maximum likelihood estimation to determine the category of the target encrypted traffic. Therefore, the problems that an existing Internet traffic classification method mostly depends on single-dimensional features for classification, but the use of the single-dimensional features causes that an existing classification model cannot comprehensively capture traffic features, and the improvement of classification precision is limited are solved.

In one embodiment, a network device includes a network interface to receive secured packets from a remote device over a packet data network, each of the secured packets being secured according to a security protocol and including a respective security protocol header and a Transmission Control Protocol (TCP) packet, which is encrypted according to the security protocol, a host device interface to connect the network device to a host device, and packet processing circuitry to decrypt each of the secured packets based on the respective security protocol header yielding multiple decrypted packets including decrypted TCP packets, aggregate the decrypted TCP packets into a single aggregated packet, and provide the single aggregated packet to software running on a processor of the host device via the host device interface.

The invention discloses a system for accelerating a satellite link, which comprises the following steps of: optimizing the data transmission speed by deploying a TCP (Transmission Control Protocol) agent module at a satellite ground station and a terminal; the agent module dynamically adjusts the size of a TCP window according to the link state, and optimizes the data flow; the link performance is monitored in real time, and the system adjusts a TCP proxy strategy and switches the link; the edge calculation module performs data preprocessing, compression, acceleration and optimization, and adopts an optimal algorithm and a flow distribution strategy; when the link quality is deteriorated, the system is automatically switched to a redundancy forward error correction mechanism and cooperatively works with the TCP agent module; end-to-end data encryption is carried out by adopting a quantum encryption technology, so that communication security is ensured; decentralized identity verification is realized by adopting a block chain technology, and identity credibility of communication nodes is ensured; according to the satellite link acceleration system, a flexible and dynamic acceleration mode is adopted, and the data transmission efficiency and stability are improved based on the intelligent proxy technology of the TCP protocol.

There is provided an apparatus, method, and computer program for transmitting, to a first roaming intermediary, a hypertext transfer protocol connect request of establishing a transmission control protocol connection between the first roaming intermediary and a peer apparatus, wherein the transmission control protocol connection is used for establishing an inter-public-land-mobile-network signaling connection between the apparatus and the peer apparatus via the first roaming intermediary; and receiving, from the first roaming intermediary, a hypertext transfer protocol connect response comprising response information which indicates whether the transmission control protocol connection towards the peer apparatus is established; wherein the hypertext transfer protocol connect request comprises information indicating the peer apparatus, and wherein the hypertext transfer protocol connect request comprises a header comprising at least one of: information indicating the apparatus; information describing a purpose of establishing the transmission control protocol connection; information describing the inter-public- land-mobile-network signaling connection being established by using the transmission control protocol connection; or information controlling forwarding or origination of messages by the first roaming intermediary towards the apparatus or the peer apparatus.

The invention discloses a cross-local area network equipment interaction method and system, a terminal and a storage medium, and relates to the technical field of communication, and the method comprises the steps: building transmission control protocol connection with connection application equipment through a cloud server, and obtaining identification information sent by the connection application equipment; storing the identification information in a device connection table, and searching the identification information of the to-be-connected device matched with the identification information of the connection application device in the device connection table; and if the identification information of the to-be-connected device is found, the cloud server realizes interaction between the connection application device and the to-be-connected device according to the connection application device and the identification information corresponding to the to-be-connected device. According to the invention, the transmission control protocol connection is established between the cloud server with the public network address and the local area network equipment, and the cloud server is used as a transit to realize the interaction between the local area network equipment; therefore, the problem that the security of data transmission is difficult to guarantee while the shortage of the current public network internet protocol address is solved in the prior art can be effectively solved.

Most of the internet traffic today is carried out via the Transmission Control Protocol (TCP). The main advantage of TCP is that it provides reliable data transfer to the application layer and simplifies programming. The protocol maximizes data throughput but may also lead to noticeable transmission delay in wide area networks (WAN). A client-server based medical image viewing system is disclosed that achieves high data throughput over TCP without impacting responsiveness. Special timestamp messages inserted into the data stream allow the system to detect situations where network latency increases noticeably and to obtain a reliable estimate of sustained transfer bandwidth. The system applies a feedback scheme that avoids network delays by limiting send bandwidth. In addition other parameters, in particular image compression settings, are dynamically adjusted depending on current network quality.

The invention discloses a method and a system for identifying general overseas VPN (Virtual Private Network) proxy traffic based on a TCP (Transmission Control Protocol). The method comprises the following steps: S1, carrying out switch TCP traffic mirroring and session SYN related time delay calculation; s2, performing hash table interaction and time delay calculation under downlink message load distinguishing; s3, on the basis of judgment of the time delay # imgabs0 # and a threshold value D, counting and logic insertion are carried out on the HashVPS hash table; s4, periodically triggering HashVPS traversal and VPS proxy service affirmation in a timing manner; the system is suitable for the general overseas VPN proxy traffic identification method based on the TCP protocol. Aiming at various TCP transmission VPN protocols, the method breaks through conventional identification limitation, is not afraid of encryption, disguising and mining proxy traffic characteristic differences, constructs a complete identification closed loop, accurately screens out proxy traffic, and builds a network security defense line.

The invention discloses a remote intelligent control system for multimedia equipment and an implementation method thereof, and belongs to the technical field of network communication, and the implementation method comprises the following steps: acquiring network environment information of the multimedia equipment, judging an NAT (Network Address Translation) type, and generating a mixed penetration protocol selection rule to determine an initial penetration protocol; the method comprises the following steps: acquiring port allocation characteristics of NAT equipment based on an initial penetration protocol, generating port prediction parameters through linear increment prediction and LSTM neural network training, and formulating a port prediction and keep-alive strategy; executing UDP (User Datagram Protocol) penetration according to a keep-alive strategy, starting a TCP (Transmission Control Protocol) standby mechanism when the UDP penetration fails, and generating a penetration scheme by combining HTTP tunnel encapsulation and firewall inbound rule configuration; equipment identification information collection, signaling interaction, penetration attempt and connection establishment are completed based on a penetration scheme, successful feedback is generated after verification is passed, and remote control is realized; according to the invention, the stability and efficiency of remote connection of the multimedia equipment in a complex network environment are improved.

The invention provides a traffic tracking method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of computers, in particular to the technical fields of traffic tracking, link tracking and the like. The specific implementation scheme is as follows: in response to a target process receiving a target domain socket link, obtaining a first socket address newly established based on the target domain socket link; obtaining a target thread corresponding to the first socket address based on the intermediate address value; the intermediate address value is an address value input by the target domain socket link calling function received by the target process; the target thread is a thread of the target process; and performing traffic tracking on the target domain socket link based on at least one target transmission control protocol link corresponding to the target thread.

The invention discloses a multi-path health degree determination method and device, electronic equipment and a storage medium, and relates to the technical field of network transmission, and the method comprises the steps: building a multi-path session based on a multi-path transmission control protocol, the health degree of the multiple paths is evaluated by comprehensively considering standardized index values and dimension weights of the multiple network paths under different index dimensions, the technical problem that the data transmission efficiency is not high due to the fact that the health state of the multiple paths cannot be accurately judged is solved, and the purposes of accurately judging the health state of the multiple paths and improving the data transmission efficiency are achieved. And the data transmission efficiency is improved.

The technology described herein is directed towards a transcoder device (node) that leverages multipath routing techniques using both terrestrial and satellite links simultaneously. The transcoder device implements the multipath transmission control protocol (MPTCP) along with metasurfaces, such as to support satellite, ethernet, Wi-Fi, and new radio (e.g., 5G) interfaces. The transcoder can decode and reencode data packets at the packet level to facilitate communication between user equipment (UEs) and existing Satcom satellites. A metasurface redirects signals from the satellite to a satellite radio frequency (RF) interface of the transcoder, with the transcoder also coupled by a UE RF interface to a UE, such as a computing device or cellphone. For direct-to-device communications, transcoder conversion is bypassed. Various additional functions facilitate such satellite service, including via frequency conversion, doppler manipulation, a repeater, and frequency equalization / negative-slope compensation.

This application discloses a network congestion control method and a network device, and relates to the field of communication technologies, to improve continuity and completion of a packet in a transmission process of a Transmission Control Protocol (TCP) flow. In this application, when pre-congestion (that is, congestion may occur) occurs in a forwarding direction of the TCP flow, a forwarding device reduces a value of a receive window (RWND) field in an acknowledge (ACK) packet, to reduce a sending rate of a transmit end for a packet in the TCP flow or delay sending of a packet by a transmit end. This relieves buffer pressure of the forwarding device, reduces a packet loss, and improves the continuity and the completion of the packet in the transmission process of the TCP flow.

The invention relates to the technical field of network transmission, in particular to a parallel coding and decoding method based on a multi-channel network TCP-UDP (Transmission Control Protocol-User Datagram Protocol). According to the invention, by constructing a multi-path parallel transmission mechanism of a transmission control protocol and a user datagram protocol, the transmission performance of each path can be dynamically evaluated and quantified according to the round-trip time and packet loss rate of the path at the beginning of session establishment, and the initial data distribution proportion is scientifically calculated, so that the initial optimization utilization of network bandwidth resources is realized; in the data transmission process, the actual sending rhythm and the bandwidth utilization condition of each link are continuously monitored, and the evolution trend of the bandwidth load is accurately identified through a time sequence prediction model, so that the path weight is dynamically modulated, the distribution proportion of the data packet is corrected in real time, and the data stream can be continuously and uniformly transmitted on the optimal path. The problems of transmission bottleneck and delay caused by performance fluctuation of a single path are effectively solved, and the reliability, stability and efficiency of data transmission are greatly improved.

The invention relates to a 5G signaling plane traffic screening method based on a multi-core processing unit, and the method comprises the steps: receiving network mirror image traffic through a physical interface unit, and screening out transmission control protocol traffic; the switching chip unit identifies HTTP / 2 protocol traffic from transmission control protocol traffic according to a target port number or an application layer protocol handshake feature, and forwards the HTTP / 2 protocol traffic to the multi-core processing unit; the binary framing structure of the HTTP / 2 protocol is analyzed, a data frame and a control frame are distinguished, and an HTTP request head is restored; analyzing and decoding an HTTP request header, and extracting a pseudo header field of a uniform resource identifier path in the HTTP request header; generating a traffic filtering rule corresponding to the service signaling traffic bearing the specific network function; and issuing the generated flow filtering rule to a switching chip unit, and outputting specified 5G signaling plane flow. The method automatically adapts to the dynamic change of the 5G network element, and effectively solves the problem of traffic loss or inaccuracy caused by difficult maintenance and untimely updating of the static work parameter data.

A method for speeding up packet processing is provided. The method includes: receiving, by a hardware acceleration circuitry of a computing device, a packet from an application layer. The method includes determining, by the hardware acceleration circuitry, whether the packet is a transmission control protocol / Internet protocol (TCP / IP) packet. The method includes performing, by the hardware acceleration circuitry, related processing on the TCP / IP packet to obtain a processed TCP / IP packet after the related processing in response to determining that the packet is the TCP / IP packet. The method includes transmitting, by the hardware acceleration circuitry, the processed TCP / IP packet to a lower layer.

The present disclosure refers to methods and systems to reduce delays in VoWI-FI handover and packet switching registration. The method includes triggering a Router Solicitation Router Advertisement (RSRA) procedure to establish a Transmission Control Protocol / Internet Protocol (TCP / IP) interface based on a determination that the VoWi-Fi handover of a user equipment (UE) is to be performed, determining if a router advertisement (RA) is received within a first time interval, and obtaining a full Internet Protocol version 6 (IPv6) address previously used by the UE in response to determining that the RA is not received within the first time interval, the full IPv6 address being for establishing the TCP / IP interface with a network.

The technology disclosed herein enables worker nodes to reestablish connections when the connection protocols fail to successfully reconnect on their own. In a particular example, a method includes establishing a plurality of TCP-based connections (e.g., iSCSI and / or NVMe) between a plurality of worker nodes and a storage system and determining status of the plurality of TCP-based connections. When the status indicates a first connection of the plurality of TCP-based connections has failed, the method includes determining credentials used to establish the first connection are invalid. In response to determining the credentials are invalid, the method includes requesting new credentials from a controller node and reestablishing the first connection using the new credentials.

The present application relates to the technical field of communications, and discloses a communication enhancement method, a terminal device, and a storage medium. The communication enhancement method is applied to a link sounding system. The method comprises: the link sounding system receives service packet information sent by a base station, wherein the service packet information comprises transmission control protocol (TCP) service packet information; and monitoring a transmission link on the basis of the TCP service packet information, wherein the transmission link is a path through which the service packet information is sent from a terminal to a destination address.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate and transmit at least one TCP ACK message according to a delay timer. A duration for the delay timer may be based on a downlink data pattern associated with downlink data packets for the UE and an uplink scheduling pattern associated with uplink data packets for the UE. The UE may generate and transmit multiple TCP ACK message segments corresponding to the TCP ACK message based on the downlink data pattern and the uplink scheduling pattern. A TCP ACK message segment may correspond to feedback for a respective portion of the quantity of data. The UE may generate and transmit a TCP ACK message associated with the quantity of data based on a transmission blanking pattern.

System and method for adapting transmission control protocol (TCP) operation between a provider equipment (PE) node apparatus and a plurality of user devices in data communication including receiving a spectrum grant, creating at least one beam for each user device based on the spectrum grant and a number of the plurality of user devices being serviced by the PE node apparatus, initializing data representative of at least one profile for storing slow-start-related information for each beam of the at least one beam servicing a TCP upload or TCP download connection, and providing network services to each of the plurality of user devices via each beam of the at least one beam supporting the respective TCP upload and TCP download connections.

A monitoring device and a method are provided for dynamically adjusting an idle interval for a Transmission Control Protocol Keepalive (TCPK) setting in a monitoring device of an electronic monitoring system. The monitoring device is connectable to an access point over a communications network utilizing Transmission Control Protocol (TCP). The initial idle interval for the TCPK of the monitoring device is programmed and a connection between the monitoring device and the access point over the communications network is established. A connection status of the communications network is monitored for failures and a count of the failures is maintained. If the count exceeds threshold, the initial idle interval is reduced by a selected time period to provide an updated idle interval.

The disclosed systems, methods and computer readable media relate to managing Non-Volatile Memory Express (NVMe) over Transmission Control Protocol (TCP) (NVMeOTCP) connections between a smart network interface card (smartNIC) and a block storage data plane (BSDP) of a cloud computing environment. A software agent (“agent”) executing at the smartNIC may manage a number of network paths (active and, in some cases, passive network paths). The agent may monitor the network traffic (e.g., input / output operations (IOPS)) through the paths (e.g., using established NVMeOTCP connections corresponding to the paths). If a condition is met relating to a performance threshold associated with the monitored paths, the agent may increase or decrease the number established NVMeOTCP connections to match real time network conditions.

The invention discloses a full-duplex remote communication calling method and device and a storage medium, and relates to the technical field of network communication, and the method comprises the steps: responding to a remote calling request sent by a client, and based on the remote calling request, creating a transmission control protocol long connection with the client, the number of the client being one or more; and in response to a remote call request sent by at least one client, creating TCP long connection with the client. According to the invention, real full-duplex remote calling is realized by establishing a single TCP long connection, so that the server can initiatively initiate a calling request to the client, the limitation of unidirectional communication of a traditional RPC framework is broken through, the system architecture is effectively simplified, the complexity that the client plays the server at the same time is avoided, and the resource overhead caused by maintenance of multiple connections is reduced.

The invention discloses a remote communication method of Internet of Vehicles data and related equipment, relates to the technical field of vehicle communication, and mainly aims to solve the problem of low transmission efficiency of a TCP (Transmission Control Protocol) used by the remote communication of the Internet of Vehicles data at present. The method comprises the following steps: registering a signaling security gateway; uploading real-time data and receiving a control instruction based on the signaling security gateway so as to connect an Internet of Vehicles service domain; and obtaining a logout request of the signaling security gateway to disconnect the connection with the Internet of Vehicles service domain. The method is used for the remote communication process of the Internet of Vehicles data.