596 results about "MAC address" patented technology

Systems and methods for WLAN multi-link TDLS key derivation. An aspect of the disclosure provides a method for WLAN multi-link communication. Such a method includes sending, by a first station to a second station, a discovery request comprising a link identifier indicating a non-access point (AP) multi-link device (MLD), wherein the first station and the second station are associated with an AP MLD. Such a method further includes receiving, by the first station from the second station, a discovery response. In some embodiments, the method further includes receiving, by the first station from an AP affiliated with the AP MLD, a message indicating a MAC address of the second station. In some embodiments, the discovery request is sent via an AP affiliated with the AP MLD and a non-AP station affiliated with the second station.

The invention discloses a reliable recognition method and system for door lock cooperation, and the method comprises the steps: building a binding relation between a mobile phone MAC address and a face feature vector according to a door opening event of the first face recognition of a resident, and constructing a directional multicast network based on the MAC address; according to the movement of the resident on the home returning path, a recognition request is sent to a directional multicast network through a door lock by collecting an MAC list and capturing a human face, and a resident identity recognition result is obtained; according to an identification request that a subsequent door lock encounters face shielding, a data complementation mechanism of a previous door lock is triggered, and service takeover is realized through an IGMP leaving message, so that a complete identity identification result is obtained; and according to the resident leaving trigger event, a leaving message is transmitted through a directional multicast network, the identity of a leaving person is confirmed through a passing door lock, and an in-home duration statistical result is obtained. According to the embodiment of the invention, the identity recognition is high in reliability, the single-point fault can be complemented, and the value-added service is precise.

A system comprises an EV with an infotainment unit, a driver App, an electric mobility service provider (eMSP) cloud and a user charging profile database to identify a Bluetooth® and time / location-based driver charging profile for its automatic selection in a charging session. The driver App is configured to communicate with the infotainment unit via a Bluetooth® interface such that a Bluetooth® MAC address being assigned to each device connected to a network is used to identify a vehicle ID and a mobile device location is used as a proxy for a vehicle location. The eMSP cloud is configured to receive the vehicle ID and the vehicle location. The user charging profile database including user charging profiles. The driver App includes a Bluetooth® plus time-based profile automatic selector for a charging session to automatically select a proper user charging profile based on the MAC address plus a day / time / location-based pre-configuration.

The invention discloses a low-delay and high-reliability wireless communication method and system, a medium and a product, and relates to the field of industrial information and data processing.The method comprises the steps that when an industrial control data packet with a priority processing identifier is received, MAC address table look-up operation is executed on the industrial control data packet, and a priority data packet containing a target address identifier is generated; constructing a data transmission path forwarding by bypassing the network bridge according to the target address identifier of the priority data packet; transmitting the priority data packet to a Wi-Fi driving layer through the data transmission path, so as to write the priority data packet to a hardware sending queue, and generating a sending data packet containing a time sequence identifier; determining a periodic transmission time window synchronized with the industrial control period according to the time sequence identifier of the sent data packet; and detecting a channel state index in the transmission time window, generating a retransmission control parameter according to the channel state index, and executing a data packet transmission operation according to the retransmission control parameter. According to the invention, the processing time delay of wireless communication can be reduced.

The invention relates to the technical field of BMC security, and provides a security acquisition method and device of BMC information, equipment and a medium, and the method comprises the steps: generating a one-time public key and a one-time private key for a single communication session according to a self MAC address and real-time time; performing hash operation on the one-time public key to obtain a one-time public key hash value; sending the one-time public key hash value to a key management server, so that the key management server signs the one-time public key hash value by using a preset private key, and receiving a returned signature result; packaging the one-time public key and the signature result into a request message, and broadcasting the request message to a local area network to enable the BMC to generate and return an encrypted response message after signature verification; and monitoring and receiving an encrypted response message returned by the BMC, decrypting the encrypted response message by using the one-time private key, and extracting and displaying BMC information. According to the technical scheme, confidentiality, safety and integrity of the response information in the transmission process are guaranteed.

A multi-connection reestablishment method, for use in a first device, and comprising: sending a first message frame, the first message frame comprising: a connection identifier of multiple connections of a first device and a second device, and media access control MAC addresses of the first device, one connection being associated with one MAC address of the first device.

This disclosure relates to creating a connection between two devices without using a UUID and / or MAC address. For example, a first device can store a private key for creating a secure connection. A second device may request that a user log into an account associated with the first device (e.g., a customer account, a financial account, an employee account, and / or the like) in order to initiate the wireless connection. The second device user can enter login credentials via the second device, which may then be transmitted to a backend system. The backend system can receive and validate the login credentials and, in response, transmit a public key to the second device. The second device can use the public key to perform a public / private key handshake in order to validate the first device.

Some embodiments provide a method of forwarding data messages between EPUs that are connected through a network and that perform computations to collectively execute a distributed application. The method generates, for each computation of each source EPU, a data message flow having one or more data messages that store a result of the computation. The generating includes specifying, for each data message, an Ethernet header having a field that identifies the data message as an Ethernet frame and a MAC field that instead of a MAC address stores a tag for forwarding the data message to a destination in the network. The method uses, at each forwarding element that forwards each data message, the tag stored in the MAC field of the data message's header to identify an egress port of the forwarding element to forward the data message along a path through the network to the data message's destination.

The invention provides a multi-uplink backup method, device and equipment based on an MLAG environment, and belongs to the technical field of communication. The method comprises the following steps: configuring at least one physical link backup group on an MLAG master device and an MLAG backup device; wherein one physical link backup group comprises a plurality of uplink physical ports; and constructing a port priority sequence based on the equipment MAC address and the port ID in the physical link backup group, and determining a main port and one or more backup ports in the plurality of uplink physical ports according to the port priority sequence. When the main port breaks down, the main port is switched to be in a blocked state, the corresponding association table item is deleted, a new main port is selected from the remaining standby ports in the online state according to the port priority sequence, and fault information is synchronized to opposite end equipment; and when the fault port is recovered and the preset inversion mode is configured, re-determining the main port based on the port priority sequence.

A system and method are provided for generating a pairwise transient key security association (PTKSA) by: providing a first media access control (MAC) address that is shared by multiple access points (APs), the first MAC address corresponding to an infrastructure comprising the multiple APs, and each AP of the multiple APs having a respective AP MAC address; providing a second MAC address to a station (STA); and establishing a secure link between the STA and the infrastructure using the first MAC address and the second MAC address to derive a pairwise transit key (PTK) for the secure link, wherein the secure link is between the STA and the multiple APs.

An information processing apparatus includes: a first acquisition unit that acquires first identification information as a MAC address from a communication apparatus; a second acquisition unit that acquires, based on a fact that the acquired first identification information is a MAC address that is randomized in the communication apparatus by a predetermined function of randomizing a MAC address of the communication apparatus, second identification information as a predetermined kind of identification information different from a MAC address from the communication apparatus that has transmitted the first identification information to the information processing apparatus; and a first execution unit that executes, using the acquired second identification information, processing for communicating with the communication apparatus that has transmitted the first identification information to the information processing apparatus.

The invention relates to the technical field of anomaly detection, in particular to an anomaly detection method for plant station automation network data packets, which comprises the following steps of: extracting a source MAC address, a destination MAC address, a protocol type, a communication frequency and an average packet length of each data packet based on the plant station automation network data packets captured in real time; according to the method, the source MAC address, the destination MAC address, the protocol type, the communication frequency and the average packet length of a plant station automation network data packet are extracted in real time, a weighted directed communication map is established according to the relation between intelligent electronic equipment and a gateway, and further, a network steady-state behavior baseline is formed through quantification from the communication behavior characteristic value of a node, so that the network steady-state behavior is realized. And a sliding time window mechanism is adopted to continuously calculate a behavior deviation metric value, and a topology behavior fluctuation index is generated by comprehensively analyzing communication frequency change, protocol type change and centrality change of an SV message, so that the time and the position of network abnormity can be determined.

Provided in the present invention is a low-latency redundant communication protocol based on an improved PRP, which protocol is compatible with the PRP standard of IEC 62439-3-2016 and operates at a link layer. Two redundant ports are connected to an upper-layer protocol by means of a link redundancy entity, and are transparent to the upper-layer protocol; a network-end node has two or three redundant network ports, which are respectively connected to networks that are independent of each other and have the same topological structure, and the networks operate in parallel; and network ports belonging to PRP-supporting end nodes are configured with the same IP address and MAC address. The improvements in the present invention are as follows: a redundancy discarding algorithm is modified to a mode of directly uploading a first-arriving communication frame to an application layer; {source IP address, source MAC address and frame sequence number} is used as a determination condition for a redundant frame; by means of file pre-configuration, the IP address of a single-network-port node in a network is written into a configuration file in advance in a node; and statistics for the number of network port link up / down events, out-of-receive-window statistics, statistics for non-sequential frame sequence numbers, and statistics for the number of out-of-sync redundant frames are added.

The present disclosure provides techniques for APs to evaluate status updates received from STAs for adaptive AID management. An AP establishes a wireless communications link with a station, generates a list of N AIDs, each of the N AIDs to be used in a corresponding epoch of N epochs associated with an EDP group, transmits to the station in a protected wireless frame, information indicating the list of N AIDs for the station, receives from the station a response frame to the protected wireless frame, where the response frame includes a status code indicating whether the station successfully stored at least a portion of the list of N AIDs, and maintains the wireless communications link with the station based at least in part on the timing information for randomized MAC address rotation for the EDP group, and including using each AID in the list of N AIDs during corresponding epochs.

The invention discloses an air conditioner control method, device and system, a storage medium and a computer program product. The method comprises the steps that a broadcast packet of Bluetooth equipment and the signal strength of the broadcast packet are obtained; extracting multiple types of feature information in the broadcast packet to construct a device fingerprint; performing similarity matching based on the device fingerprint to associate the random MAC address in the broadcast packet with the same Bluetooth device to obtain an association result; filtering the signal intensity, and judging the existence state of the Bluetooth equipment according to the filtered signal intensity and the association result; and generating and executing a control strategy of the air conditioner according to the existence state. According to the scheme, the equipment existence recognition reliability of the air conditioner is improved, the automatic control precision of the air conditioner is improved, and the energy-saving effect and the user comfort experience are enhanced.

This application discloses a communication connection method, an in-vehicle device, and related media. The method can be used with a first in-vehicle device that provides wireless communication hotspot services. The method includes the following steps: the first in-vehicle device receives a wireless connection request from a second in-vehicle device; if the wireless connection request includes a preset device identifier, and the preset device identifier matches the device identifier of the first in-vehicle device, the first in-vehicle device allows the second in-vehicle device to establish a wireless connection. By implementing the method of this application, the device providing wireless communication hotspot services can compare the target MAC address in the wireless connection request (i.e., the MAC address of the hotspot device with which the device wants to establish a wireless connection) with the MAC address of the current hotspot device to avoid the device mistakenly connecting to hotspots (or other wireless communication hotspot services). This also helps to enhance the accuracy of wireless connections and protect the security of user data.

The invention discloses a system and a method for batch modification of BMC (baseboard management controller) and MAC (media access control) addresses. Excel information reading, MAC address modification, error processing and recovery mechanism, safety and user friendliness are included. According to the method, a method of combining an automatic script and an Excel table is adopted, so that an administrator can complete a task of modifying BMC MAC addresses in batches through simple operation.

The embodiment of the invention provides an equipment control method and device, electronic equipment and a storage medium, and the method comprises the steps: generating a virtual MAC address for a main host when host equipment is determined to be the main host; the host cluster further comprises slave hosts except the master host; establishing a communication relationship between the cloud server and the host cluster based on the virtual MAC address; the cloud server is configured to receive the control instruction and forward the control instruction to the main host based on the communication relationship; when the control instruction is received, the master host and / or the slave host are driven based on the control instruction, and the intelligent device having the corresponding relation with the master host and / or the slave host is controlled, independent control for multiple physical MAC addresses is not needed, the problems of cloud management complexity, large management overhead and complex data synchronization caused by a multi-host architecture are solved, and the cloud management efficiency is improved. And the control efficiency of the intelligent equipment in the multi-host state is improved.

The embodiment of the invention discloses a communication method, device and equipment between Jailhouse virtual machines and a medium, and the method comprises the steps: adding a VNIC module in a Jailhouse source code, and enabling the VNIC module to analyze VNIC configuration and achieve address space mapping, thereby achieving the management of the VNIC; modifying a device tree file of each virtual machine operating system, and adding a memory retention statement which is used for address mapping of the VNIC; driving compatible information is added in the device tree file of each virtual machine operating system, a virtual area mapped by the VNIC is registered based on the memory reservation declaration, and a VNIC interrupt signal is configured; setting a VNIC MAC address in the device tree file according to the number of the virtual machine, and setting a specific bit of the MAC address as the number of the virtual machine for identifying a node to which the communication data flow belongs; and according to the VNIC interrupt signal of the device tree file, modifying an interrupt signal in a memory registration structure body in the configuration file to be consistent with the VNIC interrupt signal of the device tree file, and correspondingly setting an actual memory region mapped by the virtual region.

The present disclosure relates to media access control (MAC) address handling for roaming in a wireless LAN system. According to an embodiment of the present disclosure, a method performed by a station (STA) in a wireless LAN system comprises the steps of: performing an association procedure with a first access point (AP); obtaining a media access control (MAC) address for a roaming group including the first AP; transmitting a roaming request frame including the MAC address for the roaming group to the first AP; and performing roaming to a second A P included in the roaming group on the basis of receiving a roaming response frame for the roaming request frame, wherein the MAC address for the roaming group is common to a plurality of APs included in the roaming group.

The invention discloses an automatic route construction method based on topology information carried by a registration message and a controller. The method comprises the following steps: an edge gateway obtains topological information of a service device mounted under the edge gateway, packages the topological information, a gateway identifier and a northbound interface IP address of the edge gateway into a UDP registration message, and sends the UDP registration message to a controller; and the controller receives and analyzes the UDP registration message, establishes a mapping relation from the MAC address of the service device to the northbound interface IP address of the edge gateway to which the service device belongs in a global forwarding table, and determines a target edge gateway according to the global forwarding table when an original data frame sent to a target service device is received, thereby realizing accurate forwarding of the data frame. According to the application, the plug and play of the southbound service device and the automatic construction of the route can be realized, the complexity and cost of network operation and maintenance are reduced, the network storm is avoided through accurate forwarding, and the stability of a large-scale industrial network is improved.

The invention discloses a virtual network equipment management method and related equipment, and relates to the technical field of network management, and the method comprises the steps: obtaining a starting request of virtual network equipment; determining a target MAC address of the virtual network device based on the starting request; based on the target MAC address, detecting whether MAC address conflicts with other virtual network devices under the same parent interface exist; when the address conflict is detected, generating a new MAC address for other virtual network equipment; and updating the address configuration of other virtual network devices based on the new MAC address. According to the method, communication interruption and data packet errors caused by address conflicts are effectively avoided, dependence on manual intervention and an external system is reduced, and the automatic management level of a virtual network environment is improved.

The invention provides a terminal state monitoring method, a 5G network system and a computer readable storage medium, and belongs to the technical field of communication. In the terminal state monitoring method, a first device is a hanging terminal of an access device, the first device firstly obtains an IP address and an MAC address of the first device as address information of the first device, and then generates and broadcasts a first message based on the address information of the first device, so that a second device in a 5G network system can receive the first message. The second equipment can passively acquire the address information of the first equipment on the data plane without depending on additional control plane signaling or an upper layer operation and maintenance system; and finally, the second device adds the first device to the state monitoring list based on the address information of the first device in the first message, so that the second device forms an independent monitoring entry facing a single under-hanging terminal on the core network side, thereby realizing continuous state monitoring of the under-hanging terminal.

This invention relates to a personalized search and recommendation method for smart TVs, specifically in the field of film and television recommendation. It utilizes a deep neural network model to generate embedding feature vectors for each film and television program in a media resource library. User profiles are obtained based on MAC addresses or voiceprint IDs, and embedding feature vectors for user-preferred films and television programs are generated using the same deep neural network model. A film and television knowledge graph is constructed, with the relationships between knowledge graph nodes serving as the reasoning for recommendations to the user. The method obtains the first- and second-degree neighbor film and television IDs for any given film and television program. When a user inputs a search term, the first- and second-degree neighbor film and television IDs are obtained using the corresponding film and television ID. The distance between the embedding feature vector of each film and television ID in the first- and second-degree neighbor programs and the embedding feature vector of the user-preferred films and television programs is calculated. These distances are then sorted from smallest to largest, and the top N films and television programs are selected for recommendation to the user. This invention solves the problem of weak correlation between search recommendation results and specific user preferences in existing technologies. This invention is applicable to personalized film and television recommendation.

This invention relates to the field of network traffic splitter technology, and discloses a high-performance Netflow packet output method, system, and storage medium. The method involves receiving packets and parsing them; generating dynamic entries based on the parsed packet information and storing these dynamic entries in the FPGA's built-in high-bandwidth memory; simultaneously triggering the generation of quasi-static entries, which are stored in external DDR4 memory; establishing an association index between the dynamic and quasi-static entries using a 5-tuple hash value; and triggering the flow information association output of the quasi-static entries when the dynamic entries age, framing and outputting packet statistics, 5-tuples, MAC addresses, and IP version numbers according to the Netflow packet output format. This method enables the collection and output of 400G network traffic flow information with extremely low resource and peripheral consumption.

The invention relates to a method for operating a network, in which at least two network devices are connected to each other via a data line and exchange data via the data line, each network device is fixedly distributed with an independent MAC address; furthermore, the network management station controls the configuration and / or operation of the network, in which a request is sent by the network management station to the network device by means of a language-independent data format in a multicast manner in order to query configuration parameters of the network device and / or to configure the requested network device by means of the language-independent data format.

The present disclosure relates to media access control (MAC) address handling for roaming in a wireless LAN system. According to an embodiment of the present disclosure, a method performed by a station (STA) in a wireless LAN system comprises the steps of: performing an association procedure with a first access point (AP); obtaining a media access control (MAC) address for a roaming group including the first AP; transmitting a roaming request frame including the MAC address for the roaming group to the first AP; and performing roaming to a second A P included in the roaming group on the basis of receiving a roaming response frame for the roaming request frame, wherein the MAC address for the roaming group is common to a plurality of APs included in the roaming group.

The invention discloses a charging pile ring network communication method based on a virtual interaction technology, and belongs to the technical field of electric vehicle charging. The method comprises the steps that a terminal charging management control unit TCCU and a plurality of terminal management units TMUs are connected through network cables to form an annular physical connection system, and an annular network topology is constructed; using the terminal charging management control unit TCCU as a server to configure a fixed IP address for the terminal charging management control unit TCCU; each TMU is used as a client, and a unique IP address and a unique MAC address are automatically allocated based on single-board dial-up of the TMU; the TMU sends an ARP (Address Resolution Protocol) message to obtain a server MAC (Media Access Control) address, then the TMU initiates a TCP / IP (Transmission Control Protocol / Internet Protocol) connection request, the TCP / IP connection request is forwarded through network ports of other TMUs on the ring network system, and a stable communication link is established after the TCCU responds to the TCP / IP connection request; and the TMU receives the network data through the network port and compares the target MAC address, and non-self data is forwarded to the next TMU through another network port until the data is sent to the server to complete communication.