194 results about "Virtual LAN" patented technology

The invention provides a fault rapid positioning method and device in an MGX system, and belongs to the field of server system management and fault diagnosis. The method comprises the following steps: determining an idle universal serial bus interface on a mainboard, and selecting a target USB interface and a fixed IP network segment configuration corresponding to the target USB interface from the idle USB interface; the BMC establishes a physical connection with a device where the HMC is located through the target USB interface, and constructs a virtual local area network channel; in the virtual local area network channel, performing out-of-band communication between the BMC and the HMC; the BMC obtains list information of each component in the MGX system from the HMC, and classifies the list information according to component types; the HMC pre-collects and stores the state information of each category according to the classification result; and the BMC periodically reads the state information based on the Redfish protocol, and identifies the fault in the MGX system according to the state information. According to the method and the device provided by the invention, the fault can be quickly and accurately positioned.

The invention provides a communication method, device and system and electronic equipment, and relates to the technical field of network communication. The communication method comprises the following steps: executing an intelligent network card access network judgment operation to obtain a judgment result; when it is detected that the judgment result is access, an access request is sent to the switch, so that the switch broadcasts the access request to the intelligent network card located in the virtual local area network to which the static address of the target server substrate management controller belongs, and then the target intelligent network card responds to the access request and sends the access request to the switch. And performing network communication with the target server baseboard management controller through the static address of the target intelligent network card. The switch broadcasts the access request to the intelligent network card in the virtual local area network to which the static address of the substrate management controller of the target server belongs, which is equivalent to network isolation, so that network conflicts can be effectively avoided.

The invention relates to a virtual local area network configuration method and device based on an Ethernet gateway controller, equipment and a medium. The method comprises the following steps: acquiring vehicle multi-dimensional state data and calculating a network reconstruction demand degree through an Ethernet gateway controller, and generating a reconstruction trigger signal when the demand degree exceeds a threshold value; responding to the signal, dynamically selecting an optimal VLAN configuration template from a preset library by adopting a reinforcement learning strategy, and generating a configuration scheme with space-time constraint in combination with network topology; the risk level is analyzed and evaluated based on the scheme and the entropy value of the network topology, a configuration instruction sequence for risk optimization is generated, and the configuration instruction sequence is reliably issued to target equipment through a security protocol; a sensing-decision-execution-verification closed-loop control system is formed by verifying the configuration effect through the nodes and triggering a rollback mechanism when the configuration is abnormal, accurate triggering, intelligent decision, safe execution and reliable recovery of configuration of the vehicle-mounted network in a complex dynamic environment are achieved, and the network resource utilization rate, the safe response speed and the system reliability are remarkably improved.

The invention discloses a vehicle-mounted communication network diagnosis processing method and related equipment, and relates to the technical field of vehicle testing, and the method comprises the steps: obtaining a master-slave mode configuration signal of an external switch; when the master-slave mode configuration signal is in a whole vehicle communication mode, transmitting a vehicle-mounted communication network diagnosis message of a diagnosis computer to a vehicle-mounted communication system of the tested vehicle through a direct-through forwarding mode by an external switch; and when the master-slave mode configuration signal is a one-piece communication mode, virtual local area network identifier injection processing is performed on the vehicle-mounted communication network diagnosis message through the external switch, and after a target message is obtained, the target message is forwarded to a target electronic control unit of the tested vehicle. Through an automatic identification and judgment mechanism of the external switch based on a master-slave mode, automatic processing of virtual local area network identifier configuration is realized, a whole vehicle test scene and a single-piece test scene are considered, and compatibility and operation convenience of vehicle-mounted communication diagnosis are effectively improved.

The invention relates to a virtual local area network distribution method, system and device and computer equipment. The method comprises the steps of obtaining network state data, preprocessing the network state data to obtain a state vector, processing the state vector through a reinforcement learning model to obtain a virtual local area network distribution strategy, and sending the virtual local area network distribution strategy to a network controller under the condition that verification of the virtual local area network distribution strategy is passed, and indicating the network controller to distribute the virtual local area network label to the corresponding network equipment according to the virtual local area network distribution strategy. The method can improve the utilization rate of network resources.

A network device can be configured to receive a packet to be replicated in accordance with a virtual local area network (VLAN) replication set having a number of members. The network device can further be configured to identify a first sub-broadcast or layer 2 (L2) domain for the packet and to identify a first sub-broadcast domain replication set corresponding to the first sub-broadcast domain. The first sub-broadcast domain replication set can have a number of members less than the number of members in the VLAN replication set. The network device can further be configured to identify a second sub-broadcast domain replication set for the packet, to replicate the packet a number of times for at least a portion of the members of the first sub-broadcast domain replication set, and to replicate a loopback packet a number of times for members of the second sub-broadcast domain replication set.

The invention relates to the technical field of substation communication, and discloses a time-sensitive network communication method, system, equipment and medium for substation equipment network access, comprising the following steps: introducing a time-sensitive network into substation equipment, dividing the substation equipment into different network communication terminals according to message types, and distinguishing terminal service traffic through a virtual local area network, the service flow is managed and optimized; performing multi-protocol optimization on the sent transformer substation sampling message, entering a time synchronization network, and generating a scheduling strategy of the transformer substation sampling message; and filtering the sent general substation event message, entering a time synchronization network, and generating a scheduling strategy of the general substation event message. According to the invention, corresponding shaping optimization is carried out on the time-triggered traffic and the event-triggered traffic, so that the key service traffic can be transmitted in a lower-delay jitter manner after entering the network, and excessive cost overhead and signal delay overhead are not increased.

Disclosed is technology that allows a user to configure different load balance hash functions for each port channel to perform more custom-designed load balancing for that port channel. For example, some port channels may benefit from flow-based load balancing, whereas others may benefit from Virtual Local Area Network (VLAN) based load balancing, or load balancing based on an inner source media access control address (MAC address) and destination MAC address, or other methods. The present technology therefore allows a user to configure a port channel with a specific hash function that causes load balancing of the network traffic in a manner specific to that port channel.

The application discloses a network connection device and electronic equipment in the computer technical field. In the application, the switching module is provided with a first network port connected with a first baseboard management controller and divided into a first virtual local area network, a second network port connected with a switching network and divided into a second virtual local area network, and at least one third network port connected with at least one network card device and divided into the first virtual local area network and the second virtual local area network. In addition, a dynamic IP address configured by a second baseboard management controller in the network card device can communicate with the switching network, and a static IP address configured by the second baseboard management controller in the network card device can communicate with a static IP address of the first baseboard management controller. Since only the second baseboard management controller is configured with the dynamic IP address, the number of IP addresses that need to be dynamically managed is small, and too many computing resources need not be allocated for the management of the IP addresses, so that the efficient management of the IP addresses of the server BMC and the network card device can be realized.

An access point (AP) in an AP cluster is provided. During operation, the AP can identify a set of Internet Protocol (IP) addresses of permitted devices in a virtual local area network (VLAN) of the AP cluster from a first set of packets. The AP can also identify a set of media access control (MAC) addresses corresponding to the set of IP addresses from a second set of packets. The AP can then generate a whitelist comprising the sets of IP and MAC addresses. The whitelist can indicate addresses of packets permitted to be forwarded via the wireless interface. The AP can identify a target IP address in an Address Resolution Protocol (ARP) request. If the target IP address is absent in the whitelist, the AP can preclude the wireless interface from forwarding the ARP request to clients wirelessly coupled to the wireless interface.

An example operation may include one or more of establishing a connection with a local area network (LAN) network via a routing apparatus comprising a plurality of network connection ports, receiving a packet via a network connection port from among the plurality of network connections ports, detecting that the packet is of a new virtual local area network (VLAN), and automatically configuring a VLAN interface for new VLAN and deploying the VLAN interface at the routing apparatus.

The disclosure relates to a method (500) and system (108) for configuring a network policy for a network device (114) in a network (106). The method (500) involves receiving (502), by a policy control function (PCF) (110), a policy control create request from a session management function (SMF) (112), wherein the policy control create request comprises a parameter field. The PCF (110) analyzes (504) the parameter field to identify a device type and a virtual local area network (VLAN) identifier (ID). The PCF (110) verifies (506) whether the device type and the VLAN ID are not null. Upon successful verification, the PCF (110) sends (508) a success response to the SMF (112), wherein the success response comprises the VLAN ID in a header and the device type, thereby configuring a network policy for the network device (114) in the network (106).

This invention discloses a multicast message processing method, apparatus, electronic device, and storage medium. The method includes: acquiring the multicast source and receiver of the multicast message, and determining a first virtual local area network (VLAN) packet where the multicast source is located and a second VLAN packet where the receiver is located; acquiring the port type and port status of the output port of the multicast source; and synchronizing software entry content to the underlying software development kit (SDK) hardware entry when the first VLAN packet and the second VLAN packet are different and the port type and port status meet preset conditions. This invention solves the problem that some multicast receiving network elements in a multicast network cannot perform multicast group joining, prevents multicast message transmission failures due to port failures of the multicast source, and ensures the stability of multicast services.

The invention discloses a communication test method, system and device, equipment, a medium and a program product. The method comprises the following steps: running a detection program; in response to a first data frame sent by the second access node detected through the first detection interface, generating a first connectivity result corresponding to the network device, the first connectivity result being used for expressing connectivity between ports of the network device; and in response to a second data frame detected by the second detection interface and sent by the second access node and marked with a transparent transmission label, generating a second connectivity result corresponding to the network device, the second connectivity result being used for expressing that the network device supports data frame transparent transmission on a virtual local area network (VLAN). The VLAN unvarnished transmission capability between the network equipment ports is automatically tested, and the test accuracy and efficiency of the network equipment are improved.

A vehicle communication system comprises: Ethernet gateways, wherein each of the Ethernet gateways (i) is designated to serve as the Ethernet gateway in addition to performing other automotive functions in a vehicle; (ii) is coupled to multiple buses for respective subsystems having electronic control units (ECUs) communicating using respective automotive bus protocols; and (iii) is configured to encapsulate within Ethernet packets received communications of the respective automotive bus protocols; Automotive Ethernet cables connecting the Ethernet gateways in a ring topology, each of the Ethernet gateways connected to two others of the Ethernet gateways that are adjacent to the Ethernet gateway; and a communication matrix in each of the Ethernet gateways, wherein each of the ECUs is specified as belonging to at least one of multiple virtual local area networks (VLANs), wherein a VLAN tag is included in each of the Ethernet packets.

Method and control program for automatically configuring a communication network with a plurality of Virtual Local Area Networks (VLANs), wherein for each VLAN, starting from communication terminals on ports of switches and / or routers along paths assigned to the respective VLAN, a VLAN port operating mode is defined in each case, VLAN segment boundaries are defined via first VLAN port configuration tags, where second VLAN port configuration tags are used to set limits for tracing the paths assigned to the respective VLAN to define the VLAN port operating modes, third VLAN port configuration tags are used to set limits for tracing the paths assigned to the respective VLAN only with respect to outbound frames to define the VLAN port operating modes, and where the tracing of the paths assigned to the respective VLAN, and a configuration of the ports comprised by these paths are controlled using the VLAN port configuration tags.

A method, computer program product, and computing system for processing network packets to and from a multi-node storage system within a Virtual Local Area Network (VLAN) using an original VLAN device with a VLAN device identifier. A new VLAN device is generated with a new VLAN device identifier within the VLAN. Incoming packets with the new VLAN device identifier are filtered on the new VLAN device. Outgoing packets with an original VLAN device identifier are tagged on the new VLAN device. The original VLAN device on each node is modified to tag outgoing packets on the original VLAN device with the new VLAN device identifier. In response to modifying the original VLAN device to tag outgoing packets on the original VLAN with the new VLAN device identifier on each node of the multi-node storage system, outgoing packets are tagged on the new VLAN device with the new VLAN device identifier.

This invention relates to the field of industrial communication technology and discloses a communication method and apparatus for industrial switches to connect walkie-talkies without a gateway. The method involves a management unit receiving a walkie-talkie terminal registration request, assigning a unique virtual LAN identifier, configuring a multicast group address, and establishing a binding relationship. An analog audio interface module receives analog voice signals and accompanying signaling, performs sampling, analog-to-digital conversion, compression encoding, and parses the PTT trigger signal to generate a transmit enable signal. Data frames are then encapsulated and sent to the switching chip. The switching chip queries the forwarding table based on the transmit enable signal and the walkie-talkie identifier, adds a virtual LAN identifier, and forwards the data frames via multicast. The management unit continuously monitors link quality and automatically switches the channel to a backup port when quality deteriorates, ensuring stable and reliable communication, simplifying the network architecture, and reducing costs.

An method for expediting Virtual Local Area Network (VLAN) scanning for Dynamic Host Configuration Protocol (DHCP) server includes: transmitting, by a software tool, VLAN ethernet trunk frames including VLAN Identifier (ID) 1 to VLAN ID 4095, to an ethernet interface of a radio unit (RU), the ethernet interface being connected via an ethernet switch to a distributed unit (DU), wherein the DHCP server is located at the DU; selectively forwarding, by the ethernet switch to the DU, only a VLAN ethernet trunk frame having VLAN ID value X predefined by operator of the O-RAN system; selectively responding, by the DU, in response to receiving the VLAN ethernet trunk frame having VLAN ID value X, by sending a DHCP response message to the RU; and identifying, by the RU from the DHCP response message, the VLAN ID value X corresponding to the DHCP server.

The application provides a gateway device interface configuration matching method, comprising the following steps: adding all interfaces of a switching module in a gateway device to a bridge established on a first network port, simultaneously configuring a first virtual local area network, confirming a candidate interface ID list according to the interfaces in the switching module, obtaining an initial network interface type list corresponding to the candidate interface ID list according to the candidate interface ID list, obtaining a target connection state corresponding to all interfaces of the switching module in the gateway device, and matching the interface configuration of the switching module in the gateway device according to the target connection state. The application keeps the network port name on the main controller unchanged, and dynamically binds the network port in the main controller and each physical interface of the switching module according to the connection condition, realizes the network port automatic adaptation function, makes the interface configuration matching more accurate, and makes the main controller use the fixed interface uniformly, so that additional processing is not needed, the operation is convenient, and the efficiency of network developers is improved.

The application discloses a virtual local area network device registration method and device, computer equipment and a storage medium, relates to the technical field of computers, and comprises the following steps: registering an initial virtual local area network device, determining the device identifier of the initial virtual local area network device; generating a test message containing the device identifier; sending the test message to a target device, so that the target device judges whether the identifier contained in the intermediate message is consistent with the device identifier, the intermediate message being the test message received by the target device; if the target device does not receive the test message, or the identifier contained in the intermediate message is inconsistent with the device identifier, releasing the resources occupied by the initial virtual local area network device; if the identifier contained in the intermediate message is consistent with the device identifier, setting the initial virtual local area network device as a target virtual local area network device. The application solves the problems that whether the virtual local area network device can be normally used cannot be determined, and the resources occupied by the virtual local area network device that cannot be normally used cannot be released in time.

An example operation may include one or more of establishing a connection with a local area network (LAN) network via a routing apparatus comprising a plurality of network connection ports, receiving a packet via a network connection port from among the plurality of network connections ports, detecting that the packet is of a new virtual local area network (VLAN), and automatically configuring a VLAN interface for new VLAN and deploying the VLAN interface at the routing apparatus.

To achieve redundant data transmission in a communication network, at least a first (201) and a second virtual local area network (202), VLAN, are each configured on communication devices (101-104, 112-113, 122-123, 132-133, 142-144) of the communication network that forward datagrams (300). Different spanning trees are determined for each of the first (201) and second VLAN (202) within the communication network by applying a spanning tree protocol, said spanning trees being used to specify, for each of the first and second VLAN, active paths for forwarding datagrams via the forwarding communication devices. At least selected datagrams (300) to be transmitted are duplicated by a transmitter-side communication device (111) and transmitted both via the first VLAN (201) and via the second VLAN (202). Received datagrams (300) associated with the VLANs (201, 202) are each checked for identity with an already received datagram by receiver-side communication devices (121, 131, 141) and discarded if an already received identical datagram is present.

The invention relates to an IPv6 address normalization method in an SLAAC environment and gateway equipment, and belongs to the technical field of network communication, the IPv6 address normalization method in the SLAAC environment comprises the following steps: obtaining a neighbor request message sent by a terminal, determining a network identifier of the terminal based on the neighbor request message, the neighbor request message being used for duplicate address detection, and the network identifier of the terminal being used for duplicate address detection; the network identifier comprises an MAC address, a virtual local area network identifier and a temporary IPv6 address; sending an address acquisition request to a DHCPv6 server, and acquiring a fixed IPv6 address; constructing a dynamic mapping table based on the fixed IPv6 address and the network identifier; and based on the dynamic mapping table, performing address conversion on the data message of which the source IP is the temporary IPv6 address and the data message of which the target IP is the fixed IPv6 address. According to the invention, the standardization efficiency of the IPv6 address is ensured while the standardization cost of the IPv6 address is reduced.

According to embodiments of the disclosure, method, apparatus, device, and computer readable storage medium of device management are provided. The method includes: receiving a first configuration command at a first baseboard management controller BMC associated with a processing unit, the first BMC being currently in a management network; causing the first BMC to join a virtual local area network VLAN where a server is located according to the first configuration command, the processing unit being connected to the server; and in response to receiving a management command for the processing unit, forwarding the management command to the server via the VLAN. In this way, by configuring the BMC associated with the processing unit to perform the forwarding of the management command for the server, such a device management process is simpler and more convenient.

The invention relates to a network communication method and device of a power system, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring an original rule from an original rule base of an electric power communication system; if the matching mode is switched to a general matching mode, for any original rule, carrying out Hash cross mapping on a physical address of a first number bit before the current original rule, a virtual local area network label priority, a virtual local area network number and an internet protocol address of a second preset number bit before the current original rule to obtain a rule code; after rule codes corresponding to all the original rules are obtained, rule masks are set based on the rule codes; establishing a metadata mapping table based on the rule code and the original rule; and based on the rule codes, the rule masks and the metadata mapping table, performing rule matching on the messages of the power system received in real time, and executing corresponding operations. By adopting the method, the space for storing the rule codes can be effectively saved.

The embodiment of the invention provides a virtual local area network conflict processing method. The method comprises the following steps: determining a plurality of connecting devices with virtual local area network conflicts and virtual local area network information of each connecting device; creating a flexible Ethernet client for each connection device on a first physical port in butt joint with the broadband access server resource pool, and creating a virtual Ethernet interface on each flexible Ethernet client; and creating the same virtual local area network on the corresponding virtual Ethernet interface according to the virtual local area network information of each connection device. In the embodiment of the invention, a plurality of flexible Ethernet clients are created on a physical port, and a virtual local area network is created on a corresponding virtual Ethernet interface according to the existing virtual local area network plan, so that the problem of VLAN conflict of a high-rate port caused by data center resource pooling transformation in related technologies can be solved, and the data center resource pooling transformation efficiency can be improved. And the implementation mode is simple, and the technical effect of saving the transformation cost is achieved.

The application relates to the technical field of robots, and discloses a robot data transmission method, a robot and a medium, which comprise the following steps: configuring multiple virtual local area networks, performing robot data transmission network isolation based on the virtual local area networks; obtaining load data of the virtual local area networks, adjusting data transmission priorities of the virtual local area networks based on comparison results of the load data and preset load thresholds, adjusting bandwidths of the virtual local area networks based on the adjusted data transmission priorities and the load data; and performing data transmission based on the adjusted data transmission priorities and the adjusted bandwidths. The application judges network congestion states based on load sensing of each virtual local area network in the robot, improves transmission priorities of virtual local area networks in the congestion states, makes the virtual local area networks in the congestion states transmit preferentially, can effectively avoid delay and packet loss caused by network congestion, and guarantees real-time performance of robot control responses and reliability of action execution.

A vehicle-mounted relay device includes a relay section that relays information between a plurality of vehicle-mounted devices belonging to mutually different VLANs (Virtual Local Area Networks); a detection section that detects a case where the vehicle-mounted devices have transitioned to a sleep state; and a notification section that, in a case where the detection section detects that a first vehicle-mounted device among the plurality of vehicle-mounted devices has transitioned to a sleep state, makes a sleep notification to a second vehicle-mounted device among the plurality of vehicle-mounted devices indicating that the first vehicle-mounted device has transitioned to a sleep state.