153 results about "Link aggregation" patented technology

The invention relates to the technical field of mobile communication transmission, and discloses a heterogeneous network multilink parallel mobile communication transmission method and system. A dynamic link aggregation module of the system collects link state parameters including signal strength, delay jitter and packet loss rate from a plurality of heterogeneous network interfaces in real time; a flow distribution decision module calculates available bandwidth weight of each link according to the data and generates a dynamic flow distribution strategy; the data fragment packaging module splits to-be-transmitted data into a plurality of data fragments according to the strategy, and adds a sequence identifier and a link identifier to each fragment; the multi-channel concurrent transmission module sends corresponding data fragments in parallel through a specified heterogeneous network link; and the receiving recombination verification module sorts the recombination data fragments according to the sequence identifiers, and detects the data integrity through a verification mechanism. According to the system, a set of complete multi-link parallel transmission solution is formed, and the problems existing in a traditional single link and an existing multi-link transmission technology can be effectively solved.

The invention discloses a rail transit multi-network integration method based on a digital trunking technology, relates to the technical field of communication, and aims to solve the problem that a traditional narrowband trunking system cannot meet the requirements of voice and data comprehensive bearing and vehicle-ground large-bandwidth service real-time transmission. The method comprises the following steps: constructing a time division duplex long-term evolution broadband digital trunking unified bearing platform; an intermediate media access control layer fusion architecture is deployed, and seamless mobility management of the heterogeneous network is realized through unified authentication and multi-link aggregation; an intelligent vertical switching algorithm based on prediction and multi-criterion decision is introduced, a bidirectional long-short-term memory network model is utilized to predict a network state trend, and an improved entropy weight method and an analytic hierarchy process are combined to dynamically select an optimal access network according to service requirements. According to the invention, the network operation efficiency and the user experience can be obviously improved, and high reliability and high service quality of the rail transit communication system are ensured.

The invention discloses a security knowledge graph construction method and system based on behavior tracks, and relates to the technical field of network security. The method comprises the following steps: carrying out operation link aggregation according to user operation records to obtain a standardized behavior track chain; calling and accessing heterogeneous behavior trajectory data by taking the standardized behavior trajectory chain as a constraint to obtain multi-source behavior trajectory data; decomposing the standardized behavior track chain to obtain a link node time sequence operation relation and M link nodes; performing time sequence dependence modeling based on the graph convolutional network to generate a security knowledge graph; decomposing the multi-source behavior track data according to the M link nodes to obtain M pieces of multi-source behavior node data; and taking the M multi-source behavior node data as training data, and executing local parameter adaptive optimization of the security knowledge graph through a meta-learning framework. The technical problem of insufficient adaptability of the knowledge security graph in the prior art is solved, and the technical effect of dynamic adaptive optimization of the security knowledge graph is realized.

The present disclosure relates to energy optimization for links aggregated groups. An apparatus hosted inside a network device is disclosed to coordinate multiple LAGs to turn on / off components of the network device. The apparatus is adapted to decide which components to turn on / off based on a device layout of the network device and coordinate the decision with neighbor network device(s). Thanks to the use of the device layout, a more informed energy optimization decision can be taken. To this end, the apparatus obtains an energy profile of the network device. The energy profile comprises the device layout and energy consumption information associated with each component of the network device. The apparatus further obtains traffic information of the multiple LAGs and optimizes the energy consumption based on the device layout and traffic information. The optimization decision may be coordinated with neighbor network device(s).

The invention discloses a cross-switch access authentication method for multi-network-port link aggregation, and solves the problems that the existing cross-switch aggregation depends on an LACP (Link Aggregation Control Protocol) or a manufacturer private protocol, the interoperability is poor and a single-point fault occurs. The system comprises a host and a switch, the host is provided with an authentication client, a logic aggregation interface, a physical interface, a state recording and retry module and a data transmission module, and the switch is provided with an access control module. According to the method, a plurality of physical interfaces are aggregated into a logic interface bond0 through static configuration at a host end, and a service IP is configured; and independently operating an authentication client on each physical interface, executing EAP-TLS authentication, and sending a message from the corresponding interface. The interface state is recorded during initialization, if an unauthenticated interface is found, retry is immediately carried out, and meanwhile forwarding of other authenticated links is kept; when the link or the switch fails, the bond0 is automatically switched to other effective links; when the authentication session expires, the host initiates re-authentication, ensuring session continuity.

A device, such as an I / O device, includes one or more ports to couple to one or more other devices, such as host devices, over two or more links, where the one or more ports include protocol circuitry to: implement a plurality of different link protocols, implement an aggregated link of the two or more links to couple to a given one of the one or more other devices, and manage a protocol resource based on the aggregated link.

The invention provides a cloud side end collaborative cross-domain data transmission system and method, and relates to the field of data processing, and the method comprises the steps: based on the collaboration of a cloud center, an edge node and an equipment end, the cloud center carries out the fragmentation of to-be-issued transmission data to obtain a first data fragment, and carries out the recombination of an uploaded second data fragment; the edge node dynamically selects the optimal transmission path of the data fragments and schedules the transmission of the data fragments; and the device end fragments to-be-uploaded transmission data to obtain a second data fragment, and recombines the first data fragment. The system and the method provided by the invention are suitable for a heterogeneous network, and the data transmission efficiency is greatly improved by performing fragmentation processing on the transmission data and combining a priority transmission mechanism; by dynamically selecting the optimal transmission path of the data fragments, multi-link aggregation is realized, the throughput under multiple network scenes is greatly improved compared with a traditional scheme, and self-adaption of a heterogeneous network can be realized.

The invention relates to an intelligent ship network optimization method, system and device based on multi-link convergence and a medium. The method comprises the following steps: firstly, acquiring multi-network link connection parameters of the intelligent ship, constructing an adaptive environment, modifying a protocol stack, and integrating a physical link into a virtual link to realize resource convergence; and based on the real-time parameters of the virtual link and the physical link, dynamically distributing traffic by adopting an improved aggregation protocol, and generating a load balancing scheme. And then, regularly sending a detection packet quality index, and predicting a link quality trend in combination with historical data and navigation longitude and latitude. And finally, dynamically adjusting flow distribution according to a prediction result, an application real-time demand, a bandwidth demand and a current position tariff characteristic, and generating a ship-shore communication scheme considering both efficiency and cost. By adopting the method, the stability, reliability and economy of ship-shore communication of the intelligent ship can be effectively enhanced, and the method is suitable for multi-scene network monitoring optimization.

Aspects of the subject disclosure may include, for example, determining whether a bandwidth deficit exists in association with communications of a device, resulting in a first determination; responsive to the first determination being that the bandwidth deficit exists, communicating with a server to determine whether the device can participate in a link aggregation group (LAG), resulting in a second determination, wherein the communicating with the server comprises sending to the server a unique identifier, and wherein the second determination is based at least in part upon the unique identifier; responsive to the second determination being that the device can participate in the LAG, identifying a source of available bandwidth; and using the unique identifier to track bandwidth provided to the device via the source of available bandwidth. Other embodiments are disclosed.

The invention discloses a visual interface display method and system for medical communication, and belongs to the technical field of medical communication visualization. The method comprises the following steps: acquiring an operation type, calling a corresponding scene template, synchronizing an image, completing three-dimensional reconstruction and generating an interactive anatomical model; main view real-time rendering is carried out, multi-dimensional data linkage display is realized, and a remote connection signal is obtained; when the remote connection is successful, allowing an expert to label the anatomical model; when abnormity is detected, risk early warning is triggered; calculating a network quality index, performing weighted calculation, and generating a network quality score; when the network quality score does not meet the communication condition, key anatomical feature points are extracted, and feature vectors are generated; traversing a feature database of the anatomical model, and matching with the feature vectors; positioning a focus area in the main view field, and executing area replacement logic; calling a medical network topology library, and screening alternative networks; and when no single network in the topological structure meets the requirement, starting a link aggregation mechanism.

The invention discloses a multi-link aggregated cloud native network system and a flow scheduling method. The system comprises an application sensing layer, a virtual link layer and a physical link layer, the application sensing layer is connected with the virtual link layer and used for analyzing network traffic to be distributed to obtain features of the network traffic, and the features comprise traffic types, priorities and bandwidth requirements; the virtual link layer is connected with the physical link layer, and is used for detecting the states of the plurality of links to obtain the state information of the plurality of links, and determining the flow distribution strategy of the plurality of links based on the characteristics and the state information; and the physical link layer is used for carrying out flow distribution on the plurality of links based on the flow distribution strategy. According to the invention, the technical problem that the traditional cloud native network depends on single link transmission, so that network congestion is easy to occur when the service flow is increased sharply is solved.

Methods, systems, and devices for wireless communication are described. A wireless device may identify an aggregation capability to communicate in parallel over a plurality of wireless links. The wireless device may in some cases broadcast this aggregation capability (e.g., periodically). Additionally or alternatively, the wireless device may transmit the aggregation capability in response to a request received from another wireless device. In some cases, the first wireless device may transmit a request to a second wireless device inquiring about aggregation capabilities of the second wireless device. The second wireless device may respond with its aggregation capabilities (e.g., or may broadcast its aggregation capabilities independently of receiving the response). The wireless devices may establish a multi-link session based at least in part on the indicated aggregation capabilities.

Systems and methods for allowing network devices in an Ethernet Segment(ES) Link Aggregation Group (LAG) to independently perform a deterministic designated forwarder determination. Only one of the devices in the LAG will determine that it is the designated forwarder for the LAG, while the remaining devices will determine that they are not the designated forwarder for the LAG. The device that determines it is the designated forwarder may enable (or maintain) a link to a particular network device while all other devices in the LAG that make the determination they are not the designated forwarder may disable a link to that particular network device.

A network device is provided. During operation, the network device receives control information associated with a control protocol running on a multi-chassis link aggregation group (MC-LAG) from a first link coupling a second network device of the MC-LAG. The network device determines whether the second network device is operational via a second link, which is separate from the first link. The network device determines a split in the MC-LAG in response to determining the unavailability of the first link and the availability of the second network device via the second link. The network device checks a set of selection conditions in a predetermined order based on respective sets of operational information associated with the network device and the second network device. The network device then selects the second network device for forwarding traffic of the MC-LAG in response to the set of selection conditions indicating the second network device.

The application provides a resilient packet ring message forwarding method and device. The method comprises the following steps: receiving a cross-device link aggregation announcement message through a resilient packet ring network; allocating a RPR cross-device link aggregation identifier for a RPR MAC address of a member node carried by the cross-device link aggregation announcement message; receiving an Ethernet unicast message; when a destination MAC address of the received Ethernet unicast message corresponds to a RPR cross-device link aggregation identifier; performing hash calculation according to the Ethernet unicast message, taking a RPR MAC address of a member node corresponding to a result of the hash calculation as a destination RPR MAC address, taking a RPR MAC address of the current node as a source RPR MAC address, and encapsulating the received Ethernet unicast message into a RPR unicast message; and sending the RPR unicast message through an out port of a shortest RPR path reaching the destination RPR MAC address of the RPR unicast message.

Current data center deployments, particularly layer 2 (L2) deployments that use multi-chassis link aggregation group (MC-LAG) implementations, have limitations. Such deployments use a link, known as an inter-node link (INL) / inter-chassis link (ICL), to connect peer information handling system nodes. Because the peer nodes are coupled together via one or more INL connections, there are fewer ports available for each peer node to connect to end nodes. This configuration creates limitations to bandwidth and scaling, and also increases costs. Embodiments herein allow for the elimination of INLs by moving forwarding decisions to the spine node level. In one or more embodiments, a spine node determines ports to reach dual-homed, single-homed, and orphaned nodes that are connected to leaf node(s) based on information learned from the leaf nodes. For a leaf node, a sub-LAG (link aggregation group) may be created to reach single-homed / orphaned nodes connected to the leaf node.

The invention discloses a testing method for a railway transformation passenger car network system and related equipment, and relates to the field of railway network testing. Comprising the following steps: constructing a rack structure for installing network equipment and terminal equipment on a test bed, configuring a multi-path power supply output module and a network access module, and establishing a multi-path power supply module according to business requirements of transformation of a passenger car, and determining a switch cascade mode, port configuration, VLAN division and a link redundancy strategy according to a preset network parameter design rule. And the configuration file is loaded in the control terminal, the network equipment is automatically acquired, the configuration is issued in batches, and the initialization of the network system is realized. Through single-vehicle function testing and networking comprehensive testing under the condition of simulating whole-column marshalling, network stability is verified in the processes of link aggregation, link failure and switching between a satellite link and a base station link. And simulating a straddle train connection relationship through the marshalling simulation assembly, and optimizing network configuration parameters according to a test result.

The present disclosure provides a data transmission method, device, equipment and storage medium, which comprises the following steps: obtaining initial configuration parameters of at least a first network link for communication with a user terminal; determining target network link configuration parameters based on the initial configuration parameters of the at least first network link, wherein the target network link comprises a second network link for communication with the user terminal; and reconfiguring configuration parameters of at least the second network link based on the target network link configuration parameters, so that the user terminal can receive data transmitted by the network terminal based on aggregation of the first network link and the second network link, and the unified scheduling and synchronization problems of communication of each link can be ensured.

An example network interface controller (NIC) includes: first resources configured to supply first traffic; second resources configured to supply second traffic; a load balancer, coupled to the first and second resources, configured to balance the first traffic and the second traffic between first and second port circuits of a link aggregation group (LAG) using a hash function; and remote direct memory access (RDMA) logic configured to, using the hash function, divide work requests into a first set of work requests for first packets that hash to the first port circuit and a second set of work requests for second packets that hash to the second port circuit, the RDMA logic configured to supply the first set of work requests to the first resources and the second set of work requests to the second resources.

The application discloses a hydropower station network reconstruction method based on a redundancy technology, which comprises the following steps: upgrading an internal control network of a hydropower station into a hundred-megabit redundant fiber ring network and configuring an MRP sub-ring redundancy protocol; establishing a Hiper-Ring gigabit redundant fiber ring network between watersheds of cascade hydropower stations and starting three-layer routing function and VRRP function; using Hesmann three-layer switches for data transmission between a remote control center and the hydropower station; adopting a link aggregation technology to add a two-layer aggregation device between a dam LCU switch and a watershed switch RSPE30; and performing function test. The hydropower station network reconstruction method based on the redundancy technology provided by the application adheres to the principles of openness, expansibility, reliability and investment saving, eliminates existing problems based on the existing network, does not affect the operation of the network that has been put into use during later network access reconstruction, combines industrial control technology with IT technology, and provides a redundant, reliable and efficient automatic control communication network for a computer monitoring system of the hydropower station.

The invention discloses an ultra-high-definition video multi-link aggregation transmission and intelligent scheduling system, and particularly relates to the technical field of video transmission. Comprising an ultra-high-definition video multi-link aggregation module, an ultra-high-definition video link data acquisition module, a three-dimensional link quality evaluation module, an ultra-high-definition video dynamic fragmentation aggregation module, a multi-link intelligent scheduling module and a multi-link intelligent scheduling monitoring and feedback module. The ultra-high-definition video link data acquisition module is used for acquiring signal data, channel data and video data of ultra-high-definition video data streams to obtain ultra-high-definition video link data for analyzing multi-link intelligent scheduling; according to the invention, link combination selection and fragmentation distribution are carried out through the multi-link intelligent scheduling module and based on a macroscopic and microscopic dual-scale intelligent scheduling mechanism, so that the overall optimization of transmission is ensured, the quick response to link change is also ensured, and the efficiency and stability of multi-link aggregation transmission are improved.

Disclosed in embodiments of the present application are a traffic transmission control method, a device, a storage medium, and a product. The method comprises: in response to unicast data sent by a second transmission device in a multichassis link aggregation group, determining link state information of a transmission link between the second transmission device and a target device, the target device being a device corresponding to a next hop of the multichassis link aggregation group; and in the case that the link state information indicates that the transmission link is normal, preventing the unicast data from being sent to the target device.

The invention discloses a smart phone terminal integrated with a WiFi function and a multi-device network connection method, and belongs to the technical field of wireless communication. Aiming at the problems of single WiFi function, high mobile data cost and low multi-device networking efficiency of the existing mobile terminal, the invention provides a solution for dynamic spectrum aggregation and device virtualization collaboration. The core of the system is that WiFi (Wireless Fidelity) multiple frequency bands and a cellular network are integrated, dynamic spectrum allocation and multi-link aggregation are supported, and the theoretical bandwidth reaches 10Gbps; idle computing power of equipment such as mobile phones and computers is coordinated, a dynamic resource pool is constructed, and load balancing is achieved; based on the device priority (real-time demand gt; an equipment type gt; the bandwidth and the key service delay result are dynamically allocated; 10 ms; and the network center role of equipment such as a mobile phone and a television can be switched within 100ms, so that the service continuity is guaranteed.

This invention discloses a real-time assessment method for in-transit inventory costs based on process-oriented tracking and statistics, belonging to the field of logistics cost accounting technology. It aims to solve problems such as lagging in-transit inventory cost accounting, reliance on manual labor, inability to dynamically calculate, and difficulties in full-chain traceability. This invention constitutes a complete solution through layered creation of tracking pools, automatic aggregation based on logistics identifiers, real-time rolling calculation triggered by events, and full-chain aggregation presentation centered on contract numbers. On the one hand, it achieves real-time, automatic, and accurate accounting of in-transit inventory costs through automatic aggregation and rolling calculation of costs throughout the entire process from order to warehousing. On the other hand, through dynamic updates and deep traceability, as well as strengthening the correlation query between contract numbers and accounts payable and business documents, it provides enterprises with unprecedented cost transparency and control capabilities, fundamentally overcoming the core defects of existing technologies.

A control device (20) that sets a plurality of time slots for each of a plurality of ports of a communication device in which a link aggregation group is set, the link aggregation group bundling and treating the plurality of ports as one port set, comprises: a storage unit (22) that stores a first gate control list for each of the plurality of ports; and a control unit (21) that, upon receiving failure information indicating at least one port in which a failure has occurred, identifies, on the basis of the failure information, a prescribed port other than the at least one port , creates a second gate control list that opens time slots for ports other than the prescribed port, and transmits the first gate control list and the second gate control list to the communication device.

In one embodiment, a method may determine collective load data from a plurality of Ethernet Virtual Private Network (EVPN) leaf nodes in a Link Aggregation Group (LAG) within a network. The LAG may include a plurality of physical Ethernet links. The method may distribute the collective load data between the plurality of EVPN leaf nodes in the LAG. The method may determine, using a de-powering algorithm, a sustainability factor for a particular physical Ethernet link of the plurality of physical Ethernet links in in the LAG. The method may determine whether to activate or de-power the particular physical Ethernet link in response to comparing the sustainability factor to a predetermined threshold.

A method for automatically changing a topology includes: activating a number (i) of network switches included in a stack, a last switch and first (i−1) network switches being included in the stack; deactivating one of the activated switches as a deactivated switch; decoupling the last switch from the other activated switches, and resetting the last switch; disabling settings of Link Aggregation Control Protocol (LACP) between the last switch and a switch device, disabling settings of LACP between the last switch and a neighboring device, and performing a reset configuration operation to reconfigure a connection setting between the last switch and the switch device and a connection setting between the last switch and the neighboring device; and establishing settings of LACP between the last switch and each of the network switches that is neither the deactivated switch nor the last switch.

A first layer one link aggregation master comprises a first port coupled to receive customer traffic; a first channel; a second channel; an aggregation engine coupled to the first and second channels; a first switch circuit coupled to the first port and to the first channel, and configured to communicate the customer traffic from the first port over the first channel to the aggregation engine, the aggregation engine including a splitter circuit configured to use layer one information to segment at least a portion of the customer traffic into a first virtual container and a second virtual container, the aggregation engine further including an encapsulation circuit configured to encapsulate the second virtual container using Ethernet standards for transport over the second channel; a radio access card configured to generate an air frame based on the first virtual container for wireless transmission over a first wireless link of a link aggregation group to the receiver; and a second switch circuit coupled to the second channel, and configured to communicate the Ethernet-encapsulated second virtual container over an Ethernet cable to a slave for wireless transmission over a second wireless link of the link aggregation group to the receiver.

The invention discloses a method for solving the problem that mac drift suppression is asynchronous in m-lag equipment, and belongs to the field of network communication, and the method comprises the following steps: accessing a leaf host in an Ethernet virtual private network to deploy a cross-equipment link aggregation group; newly adding the extension attribute of the MAC route of the Ethernet virtual private network; when the mac drift suppression occurs in the cross-device link aggregation group, acquiring the MAC route of the first hop device in which the mac drift suppression occurs; sending the MAC route of the first-hop device subjected to mac drift suppression to a second-hop device of the cross-device link aggregation group through a boundary network management protocol; and the second-hop device of the cross-device link aggregation group performs routing processing according to the MAC routing of the first-hop device subjected to mac drift suppression to complete synchronization of the mac drift suppression on the m-lag device. According to the invention, the problem that mac drift suppression is asynchronous in m-lag equipment is solved.

The invention provides an unmanned aerial vehicle multi-service communication method and system based on virtual identity mapping, and belongs to the technical field of unmanned aerial vehicle communication. According to the method, based on a virtual IP mapping mechanism of a service type, more than one virtual network identity label bound with a service level is associated for the unmanned aerial vehicle, and different services such as a control flow and a data flow are borne in virtual channels which are completely independent logically, so that the service performance of the unmanned aerial vehicle is improved while high bandwidth and high reliability of multi-link aggregation are guaranteed. Absolute priority and transmission reliability of the key flight control instruction are ensured; according to the invention, by deploying an automatic learning and derivation mechanism of virtual identities at the server side, deployment and fine management of the unmanned aerial vehicle cluster are greatly simplified, and the expandability of the system is enhanced; in addition, the unmanned aerial vehicle is not directly exposed to a public network, limited services are provided only through a specified virtual IP and a port, and the security of the system is effectively improved.