40 results about "Hop (networking)" patented technology

The embodiment of the present application discloses a method and device for managing data jump transmission links based on system changes. In the technical solution provided by the embodiment of this application, by sending the data jump link to each corresponding IoT terminal, each IoT terminal transmits business data based on the corresponding data jump link when uploading business data, and the IoT When the networking gateway detects that the corresponding IoT terminal is replaced or a new terminal is connected to the system, it modifies or newly constructs the corresponding data skip link, and sends the corresponding data skip link to the corresponding IoT terminal. Using the above-mentioned technical means, it is possible to build a data jump transmission link, ensure the quality of signal transmission in real time, and set the data jump transmission link according to the replacement or new access of the IoT terminal, so as to facilitate the setting of the signal transmission mode and further optimize the system data Transmission, optimize system business operation.

The embodiment of the present application provides a data forwarding method and device, which relate to the communication field and can solve the problem that the relay node cannot forward the data to the correct next hop in the scenario of multi-hop wireless relay network or multi-hop and multi-connection network. node problem. The method is as follows: the first node receives the first data packet; wherein, the first data packet includes the first data and the identification of the second node of the first data; the first node queries the first routing mapping relationship according to the identification of the second node, The third node is determined; wherein, the first routing mapping relationship includes a corresponding relationship between the second node and the third node; the first node forwards the first data to the third node. This application is applied to multi-hop wireless relay networking or multi-hop and multi-connection networking scenarios.

The invention belongs to the communication field, and in particular relates to a design method of a MAC layer transmission protocol with limited control overhead. The present invention includes initializing and generating DATA message, sending RTS message, receiving RTS message, sending CTS message, receiving CTS message, sending DATA message, receiving DATA message, sending REQ message, receiving REQ message, sending SRQ message, receiving SRQ message, sending ACK message, receiving ACK message and other processing processes, the present invention judges its own report by monitoring the channel reservation request RTS message sent by the next-hop node and the REQ message of the next-hop node. The correctness of the text transmission, so as to adjust and change the path information in time to solve the problem of avoiding the failure of the relay node and the repair of the interrupted transmission link; within the limited control overhead, no additional control message field is added, effectively avoiding the problem caused by the transmission link. Network congestion or even paralysis caused by road failure, thereby enhancing the robustness of message transmission links, improving the network life cycle, and making it more suitable for wireless sensor networking requirements.

The invention provides a dual-mode inter-mode collaboration method and an electric power Internet of Things network system, which belong to the field of electric power Internet of Things wireless communication. The method includes: if the module A of the sending node is disconnected through the communication of the A link, the sending node performs inter-module coordination, and requests the module B of the sending node to construct a network frame and forward it through the B link, and the type of the network frame is module After the receiving node receives the inter-module forwarding frame through module B, it performs inter-module coordination and sends the inter-module forwarding frame to module A of the receiving node, so that module A of the receiving node obtains communication data. The method provides cooperative networking function, realizes inter-module beacon frame and networking command frame forwarding, improves network networking reliability; provides single-hop service transmission path backup and selection function, and realizes single-hop inter-mode data frame and command frame forwarding , Improve the reliability of network data transmission.

The present invention provides a message forwarding method and device. The method includes: for a Layer 3 message without tunnel encapsulation, when a target Layer 3 forwarding entry matching the Layer 3 message is found, the The target three-layer forwarding entry judges whether the next-hop outgoing interface of the three-layer message is the same as the incoming interface of the three-layer message; if they are the same, the next-hop outgoing interface of the three-layer message is modified to target tunnel interface, and perform tunnel encapsulation on the layer-3 message; forward the layer-3 message after tunnel encapsulation through the target tunnel interface; if different, exit through the next hop of the layer-3 message The interface forwards the Layer 3 packet. The application of the embodiments of the present invention can reduce the probability of loops in the data center networking and improve the reliability of the array center networking.

The invention discloses a method and device for publishing a network static route, which relates to the technical field of data communication. The method comprises: starting from a local route introduction node in the network, and proceeding along a preset network topology according to the maximum number of hops Traversing to obtain a traversal result list including the traversed listener nodes and reflector nodes; generating a network-side route according to the traversal result list, and publishing the generated network-side route to corresponding nodes in the network. The present invention customizes the publishing rules through metadata configuration to more flexibly and quickly adapt to the L3VPN route publishing algorithm of various networking scenarios.

The invention provides a workflow of an energy balancing method, which comprises the following steps that: 01, after a node finishes deployment and networking initialization, the node starts to collect original data and transmits the processed data to a Sink hop by hop, which is uplink communication and finishes the first round of data communication; 02, acquiring related information from an application layer by an energy balancing module; step 03, according to the related information provided by the application layer, the energy balance module acquiring an algorithm level in a preset compression algorithm set; 04, acquiring related information from the network transmission layer and the lower layer of the network transmission layer by the energy balancing module; step 05, the energy balance module calculates the energy consumption of the local node in the first round of data communication according to the known parameters; step 06, the energy balance module transmits the calculated total node energy consumption of the current round to a physical layer in a downlink manner, and communicates to a back node in a downlink manner through a message frame; the method has the advantages that saving and balancing of energy consumption are considered simultaneously, so that the network service life is prolonged.

The invention discloses a wired Mesh network testing method, comprising: designing a virtual device frame of the wired Mesh network; designing a virtual port frame of the wired Mesh network; designing a virtual connection of the wired Mesh network; designing a virtual concurrent hop of the wired Mesh network; and designing commands line interaction interface. The invention separates the concepts of equipment and ports, breaks the binding relationship between the two in traditional physical concepts, and thus can realize very complex networking scenarios with very simple codes. At the same time, the invention avoids the complexity of concurrent programming through the design concept of virtual one-hop. The synchronous one-hop mode can simulate the wired Mesh networking with synchronous function, and the asynchronous one-hop mode can also cover most of the function verification scenarios. The entire test framework is very simple, easy to develop, maintain and expand, and can effectively assist developers and testers to carry out related work, shorten the project cycle, and improve product quality.

The invention relates to a software definition networking method of state sensing. The software definition networking method comprises steps of: step 1: inputting a data level network parameter, an adjacent matrix AN*N, an end-to-end flow request matrix gammaN*N, link capacity Ce, a maximum link utilization rate alpha and a low request transmission rate lower limit beta; step 2: calculating a data level network path set, and solving all path sets P between two points in a directed connected graph according to a depth-first traversal method of the graph; step 3: calculating a link state matrix Ukpe; step 4: establishing a multi-source multi-sink maximum flow model based on a path hop count; and step 5: solving a model constructed in the step 4 by use of the CPLEX, and outputting the end-to-end maximum flow based on energy efficiency priority. According to the invention, the maximum flow solution based on a path is adopted; in order to improving energy efficiency of a data level network, the path hop count is used as a restriction condition, and a flow transmission path with lowest bit energy consumption is established for an end-to-end request every time, so an objective of division of high energy efficiency data level network is met.

The invention discloses a networking method of a multi-hop network with hybrid access modes. The network comprises three kinds of logic nodes consisting of gateway nodes, relay nodes and terminal nodes, wherein the terminal node and the gateway node perform communication by establishing direct connections or indirect connections, the access mode of accessing the gateway node by the direct connection is different from the access mode of accessing the gateway node by the indirect connection; and furthermore, the different access modes can be used when the relay node in the network accesses the gateway node, the relay node accesses the upper-level relay node, the terminal node accesses the relay node, or the terminal node directly accesses the gateway. According to the method, the hops of the multi-hop network are allowed to use different access modes instead of the traditional single access or connection mode adopted by a traditional mesh network, wide area network coverage and access of lots of connections based on the multi-hop network are achieved, and unnecessary spectrum resource and battery energy consumption overheads are avoided.

An embodiment of the present invention provides a method for constructing a virtual-real decoupling simulation network, including: S1, obtaining a user-defined configuration simulation network planning script, which includes the simulation network topology and the function information of each node therein; S2, According to the simulation network planning script, each node of the simulation network is distributed and deployed on multiple physical hosts connected through the physical network; S3, build a data plane device connecting all nodes on each physical host, and configure it in a software-defined manner Based on the Overlay tunnel technology, each data plane device constructs a logical topology by networking scattered nodes to form a simulated network that is decoupled from the physical network and allows data frames to be transmitted hop by hop. The construction process of the present invention is completely transparent to the physical network cluster, and without depending on and without changing the networking and configuration of the physical network cluster, an arbitrary simulation network topology structure decoupling between virtual and real can be constructed.

The invention discloses a network topology control method in a cognitive vehicle networking, which mainly solves the problems of network topology splitting and mutual interference of cognitive vehicles caused by any channel being occupied in the prior art. The implementation process of the method is as follows: 1. Each vehicle node in the network first uses the directional information transmission mechanism in the present invention to obtain one-hop neighbor information; 2. Based on the one-hop neighbor information, each vehicle node uses the two-hop neighbor information in the present invention. The hop neighbor discrimination mechanism obtains a local two-hop topology map; 3. Each vehicle node constructs a local generated subgraph that can ensure the connectivity of the topology structure according to the link weight proposed in the present invention; 4. All vehicle nodes in the network are based on the optimized The locally generated subgraph of the channel is requested and used to avoid interference in the network. The method of the invention can ensure the network connectivity after any channel in the network in the cognitive vehicle networking is occupied, and improve the fault tolerance and robustness of the network topology structure.

A message sending method, device, storage medium and terminal in a VXLAN axis networking mode, the method includes: receiving a message, querying an established forwarding table; the forwarding table includes one or more entries, and the The table item content includes virtual network identification VNI, destination IP address information, and next-hop parameter information, and the next-hop parameter information includes: next-hop message outer layer source IP address and User Datagram Protocol UDP port number; When the VNI carried in the message and the inner layer destination IP address match the VNI and the destination IP address information recorded in an entry in the forwarding table, the message will be forwarded according to the next hop parameter information recorded in the table entry to retweet. This application can realize the transmission of messages between terminals located in different network segments in the hub-spoke networking scenario.