1129 results about "Link layer" patented technology

The invention relates to an industrial control system security policy adaptive configuration method and device and a readable storage medium. According to the method, a control instruction stream, a process variable sampling value and link layer message metadata are synchronously collected, an association hypergraph fusing network semantics, control semantics and physical semantics is constructed to represent a system state, and a sampling period is divided into a plurality of time slots with fixed lengths. In each time slot, self-supervised learning is utilized to extract a topology embedded vector group, and a system operation rule is represented. A robustness envelope interval is generated by calculating a statistical distance between a current time slot and a historical baseline, and is used for driving a reinforcement learning model to generate a security policy parameter set. And executing corresponding access control, traffic shaping and integrity verification operations in the next time slot, generating receipt vector feedback model update according to an execution result, outputting a micro-policy patch with a hash signature and a timestamp, and sending the micro-policy patch to the edge security gateway to realize deployment, thereby realizing closed-loop adaptive optimization of the security policy in the dynamic environment.

The invention provides a dynamic multi-link intelligent management and scheduling system, and relates to the technical field of network communication. According to the system, real-time monitoring, dynamic management and transmission data scheduling of a network link can be realized, and the problems of low bandwidth utilization rate and insufficient transmission efficiency in the prior art are solved. The method comprises the following steps: firstly, acquiring and monitoring state information of each link in real time through an intelligent agent technology below a link layer; and secondly, the system performs link admission control according to real-time monitoring data by using a dynamic regulation rule method, and dynamically judges whether a new relay link needs to be established and provides an optimal relay node selection when the data transmission bandwidth between the two nodes is insufficient. And finally, multi-link transmission data scheduling is carried out by adopting a mode of combining deep reinforcement learning and a heuristic scheduling algorithm, and the bandwidth utilization rate is improved to the maximum extent. On the whole, an efficient and intelligent network link management scheduling scheme is provided through combination of methods of intelligent proxy, dynamic regulation rules, deep reinforcement learning and the like, and the utilization rate of network resources and the quality of data transmission are effectively improved.

The invention relates to a task and communication combined path planning method for a multi-base unmanned system. The method comprises the following steps: mapping task distribution into a target node layer, and constructing a communication link into a transmission link layer to form a task and communication double graph; establishing a dynamic coupling edge between the graphs to represent the influence of a task execution behavior on the communication quality; an interactive influence propagation model is introduced in the time dimension, and the feedback effect of communication link fluctuation on the task progress is simulated; providing time-space dynamic cost evaluation input for path planning; defining a task feasible domain and a communication strong connectivity domain in a time-space domain based on the double-layer graph output by the technology; constructing a joint feasibility domain (JFE), only allowing path planning to be expanded in the domain, and processing a splitting problem of communication repair after the path planning; performing multi-target compression on the path, and balancing task path time consumption, node connection stability and path redundancy consumption indexes; a graph homotopy simplification mechanism is introduced, and redundant edge paths in the JFE are compressed.

The invention relates to a link layer communication encryption method and system, and aims at designing a terminal side link encryption gateway and a service side link encryption gateway between a service terminal and a service system, integrally designing and applying identity authentication and session key negotiation on the basis of equipment authentication, realizing security authentication and simultaneously improving the security of the service terminal and the service system. The session key under application between the terminal side link encryption gateway and the service side link encryption gateway is obtained, that is, a lightweight security authentication mechanism is realized, a dynamic session key is generated for each accessed service terminal, the security of data communication and transmission is enhanced, the design scheme encrypts the communication data of the service terminal in a link layer, and the security of the service terminal is improved. Intranet information hiding is ensured, and an intranet service system and equipment are prevented from being attacked; and the gateway is not configured with actual IP and MAC, so that malicious users cannot carry out directional attacks on the gateway.

The invention discloses a power line carrier communication protocol data link layer simulation method, which comprises the following steps of: constructing a physical layer interface simulation module, simulating power line carrier or wireless air interface transmission through TCP socket communication, and creating a high-priority task process to process time slot-level time sequence synchronization for triggering a physical layer transceiving action at a specified time slot; configuring a time sequence synchronization control mechanism, obtaining a timestamp carried by a beacon frame sent by a concentrator, calling a clock synchronization function to align a site local clock with the timestamp when receiving the head of the beacon frame, adding delay compensation before sending data, and delaying and starting a physical layer receiving action to offset IP network transmission delay when receiving the data; a data frame processing flow is realized, a header callback function is controlled through a registration frame to respond to a physical layer state change, TCP message data is cached by using an annular queue, and a physical layer interface simulation module analyzes a message, distributes a memory and processes a load at a specified time slot after time sequence synchronization.

The invention discloses a portable interphone rapid networking system, and relates to the field of interphone rapid networking, and the system comprises a node adaptive role distribution module which adaptively distributes node roles according to the position information of each interphone node in the system in combination with the signal intensity and the residual electric quantity of the node; the path dynamic adjustment module establishes a preliminary path by sending a path request, and dynamically calculates the comprehensive quality of the path to dynamically adjust the priority of the path; the channel aggregation and dispersion strategy adjustment module is used for automatically carrying out dynamic switching adjustment on an aggregation or dispersion strategy on a channel according to real-time spectrum detection; and the communication cross-layer coordination module dynamically adjusts transmission parameters to realize communication cross-layer coordination according to the state monitoring information of the physical layer, the data link layer and the network layer after interphone networking.

The invention discloses a data security protection method based on link layer transparent encryption, and the method comprises the steps: determining a plurality of network interfaces of a transparent encryption model, and setting the network interfaces in a promiscuous mode; the method comprises the following steps: starting a promiscuous mode, capturing all original data packets passing through a target link, filtering to obtain a plurality of original data packets needing to be encrypted, then analyzing to obtain information of an IP header, then determining the initial position and length of an IP packet data load, and further determining a target data load; encrypting the target data load based on a preset encryption algorithm and the encryption key to obtain an encrypted data load; dynamically updating the information of the IP header based on the encrypted data load; and recombining the updated information of the IP header and the encrypted data load into an encrypted data packet, and forwarding the encrypted data packet to the target interface. According to the method, encryption is carried out on a network link layer, only the IP packet data load is encrypted, an IP address does not need to be configured or a network structure does not need to be modified, and normal operation of an existing network system and various devices is ensured.

The invention discloses a virtual machine computing resource dynamic allocation method and system based on a PCIe card and a storage medium, and belongs to the field of virtualization technology and hardware resource management.The method comprises the steps that the computing unit resource utilization rate of the PCIe card is monitored in real time through a hardware abstraction layer; dynamically generating a resource allocation scheme based on an improved auction algorithm, wherein the algorithm optimizes a resource quota through a time attenuation factor and a resource reuse penalty term; utilizing a programmable register remapping technology to distribute independent VF equipment for the virtual machine and establish a direct access channel; realizing interruption isolation between virtual functions through an interruption redirection controller; and during resource redistribution, atomic migration of a calculation task is completed by adopting a check point migration mechanism, and the atomic migration comprises context preloading and PCIe link layer retraining. According to the method, the problems of hardware resource distribution rigidness, insufficient isolation and migration service interruption in the prior art are solved, and fine-grained control and service lossless switching of the heterogeneous computing units are realized.

The invention discloses a network communication method and device suitable for a space-based distributed operating system, and the method comprises the steps: a satellite gateway node obtains a network layer data packet transmitted by an edge computing node, carries out the processing and packaging of the network layer data packet according to a data link layer protocol in a CCSDS protocol system, and transmits the network layer data packet to a ground station through a baseband and a radio frequency device; and after acquiring the data link layer data packet, the node, connected with the baseband equipment, of the ground station processes the data packet step by step according to a corresponding data link layer protocol and removes a data link layer packet header until an internal network layer data packet is acquired, and sends the internal network layer data packet to a corresponding control node. Establishing a communication tunnel between an edge computing node and a control node in the space-based distributed operating system; and the control node transmits the network layer data packet to the edge computing node through the communication tunnel by using the same communication line. According to the invention, the process running at the edge computing node and the control node can carry out network communication without any adaptation.

The invention discloses a high-performance satellite platform based on a real-time operating system and a wireless bus and a working method of the high-performance satellite platform, and belongs to satellite communication technologies, future deep space exploration and low-orbit satellite constellations. On the basis of an original structure of a satellite platform, a real-time operating system is effectively combined with a wireless bus system, and the real-time operating system comprises a kernel module, a communication module, an equipment driving module, a file system module, an application interface module, a safety module and a fault management module. The wireless bus system comprises a physical layer, a data link layer, a network layer, a transmission layer and an application layer. According to the invention, efficient and reliable communication and task execution capabilities are provided for a satellite platform, the requirements of real-time performance and reliability of a satellite in a complex environment are effectively met through modular design and tight work of the system, and meanwhile, complex lines and interfaces brought by a wired system are avoided.

The invention discloses a data transmission controller and method, electronic equipment and a computer storage medium. The data transmission controller comprises N protocol layer controllers, an arbiter and a data link layer controller, wherein N is an integer greater than or equal to 2; the N protocol layer controllers are configured to transmit N pieces of protocol layer data; the arbiter is configured to receive N pieces of protocol layer data of the N protocol layer controllers and determine transmission priorities of the N pieces of protocol layer data; the data link layer controller is configured to transmit N protocol layer data according to a transmission priority. According to the data transmission controller, different protocol layers can share the same physical link resource, so that the utilization rate and the flexibility of the link are improved; meanwhile, isolation and protection of data of different protocol layers are realized.

The invention discloses a computing system and a control method, device, equipment, medium and product thereof, and relates to the technical field of computers.A host device, a first switch and an acceleration computing device are divided, the first switch comprises a plurality of interconnected switching controllers, and uplink ports of the switching controllers are connected with the host device; the downlink port is connected with the acceleration computing device, the binding relation of the physical link layer between the mainboard and the acceleration card is removed, the port configuration and the resource allocation path of the exchange controller can be flexibly adjusted, and the acceleration computing resources can be allocated according to needs. The first board card provided with the first slot and the cable adapter plate are arranged in the acceleration computing device, so that the acceleration computing device with high-density deployment is realized. Therefore, the method solves the problem that the expansion capability of acceleration computing resources of a multi-card system reaches a bottleneck, and lays a foundation for expanding large-scale computing power by a single host and constructing a multi-host shared large-scale computing resource pool.

Provided are a semiconductor device for changing a link speed and a link width of a peripheral component interconnect express (PCIe) link and an operating method thereof. The semiconductor device includes the PCIe link including a plurality of lanes, and a controller configured to transceive a data link layer packet (DLLP) including a number of times of transition and a maximum number of times of transition from an L0 state to an L0p state through the PCIe link, based on a first bit error rate (BER) of a data packet received through the PCIe link and a first criterion value in the L0 state, and determine whether to perform at least one of a link speed changing operation performed in a recovery state, or a link width changing operation performed in the L0p state, based on the number of times of transition and the maximum number of times of transition.

According to the large-scale real-time data link layer simulation method, a data link layer simulation system based on an FPGA (Field Programmable Gate Array) is composed of a wireless channel simulation module, a media access control module and a logic link control module; the wireless channel simulation module is used for carrying out modeling simulation on a physical channel transmitted in reality in an FPGA (Field Programmable Gate Array), and the channel distributes control signals to different nodes according to the control signals of the media access control module and transmits high-speed data transmitted by an upper-layer transmitting end back to the media access control module after passing through the simulated channel; the wireless channel simulation module has two functions of quantizing a channel model and quantizing an error rate model; in the quantization implementation of channel simulation, the quantization implementation of a channel model is completed, and the FPGA calculates the SNR in the transmission process through the sending frequency, the distance and the system transmission loss parameters transmitted by the upper layer; and randomly carrying out packet loss on the data according to the PER in quantization implementation of the error rate model so as to simulate real communication.

The invention belongs to the field of star flash mouse communication, and discloses a star flash mouse low-power-consumption communication system and method based on Polar code and SLE collaborative optimization, the system adopts a layered architecture design, collaborative optimization of energy efficiency and performance is realized through deep coupling of a physical layer and a link layer, and the performance of the system is improved. The core of the system is composed of three functional units including a Polar code coding module, an SLE control engine and a cross-layer optimization interface, and a complete closed-loop control system is formed. According to the invention, through deep cooperation of the Polar code and the SLE mechanism, the overall power consumption is reduced by 42.7% compared with the traditional scheme; according to the Polar code dynamic construction method based on track prediction, an ultra-low bit error rate of 10 <-5 > magnitude can still be kept in a 2.4 GHz complex interference environment, and in combination with signal-to-noise ratio self-adaptive coding parameter adjustment, it is ensured that transmission delay within 0.5 ms is always kept from a low-speed office scene to a high-speed electronic sports scene; in the aspect of engineering implementation, the method has the capability of quickly adapting to hardware platforms of different manufacturers, and a complete solution with high performance and low cost is provided for large-scale commercial use of the satellite flash technology in the consumer electronics field.

The invention relates to the technical field of industrial communication networks, in particular to a method for quickly forwarding messages from a PCIE (Peripheral Component Interface Express) interface to a WIA (Wireless Interface Architecture) interface, which comprises the following steps of: simultaneously receiving PCIE messages and WIA-FA protocol messages through a hardware logic circuit; analyzing the message in a data link layer to obtain an analysis result comprising data load and address information; packaging the analysis result according to a pre-configuration rule to generate a data frame conforming to a target protocol; and constructing a sending descriptor for the generated data frame, and sending the data frame from a corresponding interface through a direct memory access mechanism. According to the method, parallel analysis and protocol conversion of messages are achieved through a hardware logic circuit, fast address conversion is achieved through a pre-configured address mapping table, and zero-copy data transmission is achieved through a direct memory access mechanism. According to the invention, software protocol stack processing is replaced by a hardware processing flow, so that communication delay and CPU resource consumption are effectively reduced.

Described herein are devices, systems, methods, and processes for optimizing the utilization of large bandwidth channels in wireless communication networks. This is achieved by an access point (AP) identifying parts of the channel available for standard power (SP) transmissions and using novel puncturing messages to allow simultaneous low-power indoor (LPi) transmissions on the “punctured” parts of the channel. The AP can implement different modes to allow concurrent transmissions at SP level on the SP-allowed parts of the channels and at LPi level on part of the channel that do not allow SP transmissions. The AP can also switch unicast communication with a client device to LPi but with a larger channel width as the device nears the AP. The techniques allow for fuller utilization of large bandwidth channels where only a part of the channel is available for SP transmissions, thereby improving network efficiency.

The invention discloses a PCIe (Peripheral Component Interconnect Express) switching chip for realizing calculation in transmission, a switch with the PCIe switching chip and a communication system with the PCIe switching chip, the switching chip comprises a physical layer, a data link layer, a transaction layer and a calculation module, and is used for responding to the condition that a specific prefix of a transaction layer data packet is analyzed by the transaction layer and carries a preset calculation instruction; if yes, the calculation module analyzes the calculation instruction analyzed by the transaction layer so as to extract a calculation parameter field in the calculation instruction; the calculation module generates and executes a task of calculating the data in transmission according to the calculation parameter field, and calculation does not need to be started after all the data to be calculated are in place; firstly, part of the currently received data to be calculated is calculated to obtain an intermediate calculation result; and aggregating the subsequent newly received data to be operated and the intermediate operation result. According to the invention, by inserting the programmable calculation path into the PCIe switch, an innovative mechanism of'transmission while calculation 'is realized, the system delay is reduced, and the bandwidth occupation is reduced.

The invention relates to an AI-based service anomaly detection method, and belongs to the technical field of data processing. Comprising the following steps: acquiring runtime data of a production environment, including service layer data, hardware layer data, network layer data and link layer data; supplementing the collected data, carrying out classified marking on data information, and defining a hierarchical relationship among the data; sending the data to an AI model, carrying out correlation analysis through a time dimension and a space dimension, and carrying out link analysis; the AI large model updates the knowledge graph and generates the model according to each operation and maintenance; and displaying the fault knowledge graph by using a graphical front end. According to the AI-based service anomaly detection method provided by the invention, multi-dimensional data are comprehensively collected and correlation analysis is carried out, so that rapid positioning of a fault is realized. The fault discovery time is greatly shortened through the real-time detection capability, and the fault processing efficiency is further improved through incremental updating and intelligent optimization of the knowledge graph.

The invention belongs to the field of PCIe (Peripheral Component Interconnect Express) chips, and relates to a CXL switching chip of a multi-core-grain architecture and a cross-core-grain routing switching method thereof, and a plurality of CXL switching core grains with uniform specifications are packaged and interconnected to form the CXL switching chip; each CXL switching core particle comprises a plurality of ports, each port can be configured to be in a CXL mode and a D2D mode, and the port of each CXL switching core particle at least comprises a physical layer, a CXL link layer, a CXL transaction layer, a D2D routing layer, a bypass and a multipath selection module; the CXL switching chip further comprises a multi-VC on-chip CXL switching network, and the multi-VC on-chip CXL switching network comprises at least one order-preserving switching VC and one out-of-order switching VC. According to the method, CXL switching chips of various specifications can be flexibly constructed, the design complexity and verification difficulty of the large-scale or multi-port CXL switching chips are effectively reduced, and the production yield of the chips is improved.

The invention belongs to the technical field of wireless communication networks, and discloses a multi-modal adaptive routing equipment network optimization method based on artificial intelligence, which comprises the following steps of: extracting network flow metadata in a data link layer by adopting deep packet inspection, and analyzing and predicting bandwidth requirements in n periods of time in the future based on a time sequence; planning channel resources by adopting a Nash equilibrium algorithm according to the bandwidth requirement, and generating a channel allocation instruction; synchronously acquiring multi-band channel state data, and constructing a three-dimensional radio frequency environment signal spectrum; analyzing the three-dimensional radio frequency environment signal spectrum, searching a frequency band combination with the minimum interference, and generating a frequency band switching instruction; integrating the channel allocation instruction and the frequency band switching instruction, generating a network QoS optimization strategy, and issuing the network QoS optimization strategy to the routing equipment for execution; and the network transmission efficiency, the security and the adaptive capacity of the routing equipment are improved.

The invention provides a vehicle-mounted passive optical network area gateway and a protocol conversion method. The gateway comprises an interface module which comprises a plurality of communication interfaces, wherein the communication interfaces are used for receiving messages of a low-speed network protocol; the data processing module adopts an FPGA (Field Programmable Gate Array) core board and is used for receiving a message, extracting effective information from the message, packaging the effective information to obtain an Ethernet protocol frame and converting the Ethernet protocol frame into an SDU (Service Data Unit); and the ONU optical module is used for performing data link layer processing on the SDU to obtain an uplink FS burst frame, and performing physical layer processing on the uplink FS burst frame to obtain a burst mode optical signal frame. The gateway can realize data access of multiple paths of CAN nodes, LIN nodes and vehicle-mounted Ethernet nodes at the same time, meets the communication protocol conversion function of low-speed nodes in each region in a real vehicle environment, and is integrated into a whole vehicle all-optical backbone network. The method is used for converting data complying with a low-speed network protocol into data complying with an XGS-PON protocol.

The invention discloses a wireless ad hoc network routing and resource cross-layer joint optimization method based on a genetic algorithm. The method comprises the following steps: step 1, aiming at a plurality of end-to-end communication services in a wireless ad hoc network, carrying out mathematical modeling on a normalized difference sum of each service flow path hop count and a theoretical minimum value thereof and a constraint condition; performing joint optimization on link layer resource allocation and network layer routing decision; and step 2, solving the mathematical model based on a genetic algorithm to realize the targets of reasonable distribution of network resources and optimization of service quality. According to the method, link layer resource allocation and network layer routing decision are jointly optimized in a global mode under the condition that network communication resources are limited, it is ensured that a service flow is close to shortest path transmission as far as possible, end-to-end delay and network loads are reduced, and effective allocation of resources and flexible construction of routing are achieved.

The invention belongs to the technical field of intelligence, and discloses a data link layer analysis method in an industrial field network address conflict environment. Comprising the following steps: deploying a customized acquisition module at a data link layer, capturing an original data frame in real time, and extracting time sequence features and protocol semantics; the time sequence features and the protocol semantics are combined into a high-granularity data set with multi-dimensional features; designing a multi-rule set based on the high-granularity data set of the multi-dimensional features, and performing anomaly detection to obtain an abnormal data frame data set; dividing a conflict domain according to a time window on the basis of the abnormal data frame data set, calculating the proportion of the total flow and the broadcast flow in the conflict domain, judging whether an address conflict problem exists in the conflict domain or not according to the proportion of the total flow and the broadcast flow, and if the address conflict problem exists, performing isolation by using a VLAN (Virtual Local Area Network); in the isolated conflict domain, establishing a communication relation graph in the network to visualize a conflict source; and the stability and the safety of the industrial field network are effectively improved.

Embodiments of the present disclosure provide a data transmission method, a data link layer, a chip interconnection interface, and an electronic device. The data transmission method is applied to the data link layer of the chip interconnection interface, the data link layer communicates with the system bus and the physical layer, the system bus operates in a first clock domain, and the physical layer operates in a second clock domain or in a second clock domain and a third clock domain. The method includes: the data link layer performs packet processing on the first data received from the system bus to obtain second data, and provides the second data to the physical layer; or, the data link layer performs unpacking processing on the third data received from the physical layer to obtain fourth data, and provides the fourth data to the system bus, wherein the data link layer partially operates in the third clock domain, and the first clock domain is different from the second clock domain and the third clock domain, the first clock domain includes a first clock signal, the second clock domain includes a second clock signal, and the third clock domain includes a third clock signal.

A synchronization circuit for an interconnection protocol, a controller and a storage device are provided. The synchronization circuit includes a first synchronization circuit module and a second synchronization circuit module. The first synchronization circuit module converts first control information of a first clock domain output by a data link layer receiver of the first device into second control information of a second clock domain, and outputs the second control information of the second clock domain. The second synchronization circuit module is coupled to the first synchronization circuit module, and converts the second control information of the second clock domain output by the first synchronization circuit module into third control information of a third clock domain to be output to a data link layer transmitter of the first device. Any two among the first, second and third clock domains are asynchronous.

The invention relates to a clock synchronization system and method based on dual-mode communication, the system is a tree network and comprises a network main node CCO, a proxy node PCO and a child node STA device, the dual-mode communication is high-speed carrier and high-speed wireless, a time synchronization sub-layer is added in a data link layer, and the time synchronization sub-layer is used for synchronizing the data link layer. The frame structure of the time synchronization sub-layer comprises a time synchronization level for representing a clock synchronization priority; time synchronization operation of the system is carried out in a high-speed carrier channel and a high-speed wireless channel at the same time, transmitted time synchronization signals comprise time synchronization priority signals containing time synchronization levels, and synchronization of PCO and STA clocks and CCO clocks in the same low-voltage transformer area dual-mode communication network is achieved based on the time synchronization priority signals. Compared with the prior art, the method has the advantages of improving the clock synchronization efficiency, precision and robustness and the like.

A method is proposed for determining the best sequence of software updates and / or boot commands to switches, said sequence being used to allow the prevention of collisions when distributing the software updates and / or the boot commands and to allow the software update process and / or the boot command process to be optimized over time. For this purpose, a network is used in which an update station, multiple network participants, and multiple switches can communicate with one another. It is proposed to collect information relating to the switches in the network using LLDP, and the removal of the switches from the update station is determined using the collected Information. The sequence of updates and / or boot commands to the switches can then be ascertained by means of the removal process.

The invention discloses a system and a method for resisting a pseudo link layer protocol attack in an electric power communication network, and relates to the technical field of communication. The system comprises: a switching unit, which is used for receiving all data frames transmitted from an Ethernet port; the data identification module analyzes the protocol type and the destination address of the data frame, and forwards the data frame to the service processing unit or directly discards the data frame; the buffer area module sets an independent buffer area for each link layer protocol, and dynamically adjusts the size of the buffer area based on the protocol characteristic weight and the equipment memory resource through the configuration unit; the buffer area management module monitors the state of a buffer area in real time and triggers data discarding operation when the buffer area is fully loaded; and the data extraction module extracts the data frames from the buffer area according to a set time interval and analyzes and forwards the data frames in combination with a priority rule. According to the method, the size and the time interval of the buffer area can be dynamically adjusted, the resource utilization efficiency is improved, the pseudo link layer protocol attack is effectively resisted, and the security and the real-time performance of an electric power communication network are guaranteed.

The invention belongs to the technical field of wireless communication, and relates to a system for reducing communication congestion of a wireless communication network. The physical layer adopts an updated frequency hopping sequence to resist interference and is linked with an upper-layer transmission strategy and a topological structure to realize global optimization; link layer resource allocation adopts a dynamic adjustment channel coding mode to adapt to a channel state, so that packet loss caused by blocking of a service is avoided; network layer topology optimization provides real-time spectrum information support, and path planning avoids an interference area. Cross-layer cooperative anti-blocking is performed through dynamic linkage of a physical layer, a link layer and a network layer, limitation of a traditional layered architecture is broken, a'detection-decision-execution 'closed loop is formed, double avoidance of spectrum resources and topological paths is realized, and network anti-blocking capability and transmission efficiency are improved.