WO2022205905A1 - Réseau de contrôleurs de réseau défini par logiciel et procédé d'interaction associé, et support de stockage - Google Patents

Réseau de contrôleurs de réseau défini par logiciel et procédé d'interaction associé, et support de stockage Download PDF

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WO2022205905A1
WO2022205905A1 PCT/CN2021/128586 CN2021128586W WO2022205905A1 WO 2022205905 A1 WO2022205905 A1 WO 2022205905A1 CN 2021128586 W CN2021128586 W CN 2021128586W WO 2022205905 A1 WO2022205905 A1 WO 2022205905A1
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sdn controller
network
controller node
node
central state
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PCT/CN2021/128586
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English (en)
Chinese (zh)
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李佳聪
吕航
王镇宇
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中国电信股份有限公司
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Publication of WO2022205905A1 publication Critical patent/WO2022205905A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5083—Techniques for rebalancing the load in a distributed system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H04L41/122—Discovery or management of network topologies of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • the present application is based on the CN application number 202110339592.X and the filing date is March 30, 2021, and claims its priority, and the disclosure content of the CN application is hereby incorporated into the present application as a whole.
  • the present disclosure relates to the technical field of software-defined networks, in particular to an SDN (Software Defined Network, software-defined network) controller network and an interaction method and storage medium thereof.
  • SDN Software Defined Network, software-defined network
  • SDN The essential features of SDN are the separation of control and data planes and open programmability. By separating the control and data planes and open communication protocols, SDN breaks the closed nature of traditional network equipment. In addition, open interfaces and programmability in north-south and east-west directions make network management simpler, more dynamic and more flexible.
  • the SDN controller is the core component of the control plane and the logical center of the entire SDN architecture. With the expansion of SDN network scale, SDN controllers constitute a relatively complex and huge controller network. In order to strengthen the operation coordination of SDN controllers, the usual practice is to set up a central SDN controller management platform to collect the running status of each controller regularly. Implementing management and control configurations on the SDN controller, such as load balancing, increases construction costs and operating costs.
  • An object of the present disclosure is to improve the work interoperability between SDN controllers.
  • an interaction method for an SDN controller network including: a central state SDN controller node in the SDN controller network generates a block according to collected information, and puts the block on the block.
  • the SDN controller network is a blockchain network, and the SDN controller node in the central state is determined according to the available resources of the SDN controller node in the SDN controller network; the SDN controller in the non-central state in the SDN controller network The controller node obtains the block and stores it; each SDN controller node in the SDN controller network re-determines the SDN controller node in the central state according to the available resources of each SDN controller node in the SDN controller network.
  • the interaction method of the SDN controller network further includes: when each SDN controller node in the non-central state in the SDN controller network changes its own resources, sending resource change information to the SDN controller in the central state
  • the SDN controller node in the central state stores the resource change information when the verification of the resource change information is passed, and takes the resource change information as the collected information or as a part of the collected information when generating blocks.
  • the SDN controller node in the central state starts timing after becoming the central state, or starts timing after collecting information; when the timing reaches a predetermined time period, the operation of generating a block is performed.
  • the interaction method of the SDN controller network further includes: each SDN controller node in the SDN controller network determines the SDN controller in the central state according to the available resources of each SDN controller node in the SDN controller network node.
  • determining the SDN controller node in the central state includes: obtaining the available resource evaluation value of each SDN controller node according to the stock resources and available resources of each SDN controller node; determining the available resource evaluation value The SDN controller node with the highest value is the SDN controller node in the central state.
  • obtaining the evaluation value of the available resource amount of each SDN controller node according to the stock resource amount and the available resource amount of each SDN controller node includes: according to the stock resource amount of each type of each SDN controller node and available resources, obtain the used resources of the corresponding type, and determine the resource consumption ratio of the corresponding type, where the types of resources include the computing resources, storage resources and memory resources of the virtual machine, and the network resources of the link.
  • the weight of the corresponding type of resources is determined; for each SDN controller node, according to the available resources of each type and the corresponding type Determine the weighted sum of the resource amount weights of , and obtain the available resource amount evaluation value of the corresponding SDN controller node.
  • the interaction method of the SDN controller network further includes: for each SDN controller node, acquiring the corresponding SDN controller according to the resources of each virtual machine and the link between the virtual machines constituting the SDN controller node The resource amount of the server node, wherein the resource amount is divided into the stock resource amount and the available resource amount.
  • an SDN controller network including: a plurality of SDN controller nodes and links between the nodes to form a blockchain network; the SDN controller nodes include:
  • the block generation unit is configured to generate a block according to the collected information and upload the block to the chain when it is in a central state, wherein the SDN controller node in the central state is an SDN controller according to the SDN controller network The amount of available resources of the node is determined;
  • the block storage unit is configured to store the blocks generated by itself in the case of being in the central state; in the case of not being in the central state, obtain the blocks issued by the controller node in the central state, and store them;
  • the central state node determination unit is configured to re-determine the SDN controller node in the central state according to the available resources of each SDN controller node in the SDN controller network after the block storage unit stores the block.
  • the SDN controller node further includes: a resource update unit, configured to send resource change information to the SDN in the central state if its own resources change when the SDN controller node is in a non-central state
  • the controller node the verification storage unit is configured to store the resource change information if the verification of the resource change information is passed when the SDN controller node is in the central state, and provide it to the block generation unit, so that the block generation unit
  • the resource change information is used as the collected information or as a part of the collected information when the block is generated.
  • the central state node determining unit is further configured to: determine the initial central state SDN controller node according to the amount of available resources of each SDN controller node in the SDN controller network.
  • a software-defined network controller network comprising: a memory; and a processor coupled to the memory, the processor being configured to execute any one of the above based on instructions stored in the memory a method.
  • a non-transitory computer-readable storage medium having computer program instructions stored thereon, the instructions implementing the steps of any one of the above methods when executed by a processor.
  • FIG. 1 is a flowchart of some embodiments of the disclosed SDN controller network interaction method.
  • FIG. 2 is a flowchart of other embodiments of the disclosed SDN controller network interaction method.
  • FIG. 3 is a signaling interaction diagram of some embodiments of the disclosed SDN controller network interaction method.
  • FIG. 4 is a flowchart of some embodiments of determining a central state of an SDN controller node in the disclosed SDN controller network interaction method.
  • 5 is a schematic diagram of some embodiments of the disclosed SDN controller network.
  • FIG. 6 is a schematic diagram of some embodiments of SDN controller nodes in the SDN controller network of the present disclosure.
  • FIG. 7 is a schematic diagram of further embodiments of nodes in the SDN controller network of the present disclosure.
  • FIG. 8 is a schematic diagram of further embodiments of nodes in the SDN controller network of the present disclosure.
  • Blockchain technology is a promising decentralized distributed data management framework and has been applied to many distributed system scenarios.
  • Blockchain can achieve high efficiency and low cost through a decentralized and unforgeable computing model. It is widely used in finance, logistics, industrial manufacturing, medical care, Internet of Things and other fields.
  • the SDN controller network is a blockchain network, in which one SDN controller node is in the central state, other SDN controller nodes are in the non-central state, the nodes in the central state have accounting rights, and other nodes passively receive storage blocks and do not own accounting rights.
  • step 101 the SDN controller node in the central state generates a block according to the collected information, and uploads the block to the chain, wherein the SDN controller node in the central state is based on the available resources of the SDN controller node in the SDN controller network Quantity is determined.
  • the collected information may include data of the data network collected by the SDN controller node in the central state, changes in the state of the SDN controller itself, and data from the SDN controller node in the non-central state.
  • the data from the SDN controller node in the non-central state may include the data of the data network collected by the corresponding SDN controller node and the state change of the SDN controller itself.
  • the SDN controller node in the non-central state in the SDN controller network acquires and stores the block.
  • the SDN controller node in the non-central state will first verify the block based on the operating rules of the blockchain network; if the verification is passed, the block will be stored on the chain.
  • the SDN controller node in the central state as part of the blockchain network, also stores the blocks generated by itself on the chain.
  • each SDN controller node in the SDN controller network re-determines the SDN controller node in the central state according to the available resources of each SDN controller node in the SDN controller network . Since each SDN controller node is based on the same data when determining the node in the central state, the SDN controller node in the same central state can be selected.
  • the information management of the SDN controller can be carried out in the form of a blockchain network, and the reliability of the distributed SDN controller can be improved; While storing information, the mechanism also improves the cooperative operation ability between controllers; the controller node in the central state is responsible for the generation and uploading of blocks, and the controllers in other states accept the blocks produced by the controller node in the central state. , reduce the number of blocks in the network, also reduce the node processing pressure of the controller, and improve the robustness of the network.
  • FIG. 2 The flowchart of other embodiments of the SDN controller network interaction method of the present disclosure is shown in FIG. 2 .
  • each SDN controller node in the SDN controller network determines the SDN controller node in the central state according to the available resources of each SDN controller node in the SDN controller network.
  • the SDN controller node that determines the central state for the first time may trigger execution when the network is initially constructed.
  • the stock resource amount and the available resource amount of each SDN controller node may be obtained first, and an evaluation value of the available resource amount of each SDN controller node may be determined according to the obtained information. Further, the SDN controller node with the highest available resource evaluation value is determined as the SDN controller node in the central state.
  • step 202 the SDN controller node in the central state determined in step 201 in this cycle starts timing after becoming the central state, or starts timing after collecting information.
  • a timer can be set, and a predetermined time period can be set as the upper limit of time.
  • step 203 it is determined whether the timing has reached a predetermined duration. If the predetermined time period is reached, go to step 204; otherwise, continue to wait. During the waiting process, each SDN controller node in the SDN controller network collects information and sends it to the SDN controller that becomes the central state.
  • step 204 the SDN controller node in the central state summarizes the information collected during the waiting process, generates a block, and uploads the block to the chain; the SDN controller node in the central state also stores the block itself.
  • step 205 the SDN controller node in the non-central state in the SDN controller network acquires and stores the block. Going back to step 201, the SDN controller node in the central state is re-determined.
  • the reselection of the SDN controller node in the central state can be performed whenever a block is generated or stored, so as to fully consider the resource occupation of the block chain node by the generation and storage of the block, ensuring that The nodes in the central state have the best performance in the network, which improves the processing efficiency and reliability of the SDN controller network.
  • FIG. 3 A signaling interaction diagram of some embodiments of the SDN controller network interaction method of the present disclosure is shown in FIG. 3 . Only two of the nodes are shown in the figure, and one of them is determined as the node in the central state in step 301, which is only illustrated by the interaction between the SDN controller node in the central state and the SDN controller node in the non-central state. .
  • step 301 the SDN controller node 31 determines that the SDN controller node in the central state is 32 according to the available resources of each SDN controller node in the SDN controller network. According to the same data, the SDN controller node 32 will determine itself as the SDN controller node in the central state.
  • each SDN controller node may scan each SDN controller in the blockchain to obtain the resource status of each node.
  • step 302 when the own resources of the SDN controller node 31 change, resource change information is generated.
  • step 303 the SDN controller node 31 sends its own resource change information to the SDN controller node 32 in the central state.
  • step 304 the SDN controller node 32 receives the resource change information and verifies it. If the verification is passed, it will be stored for backup and start timing.
  • step 305 when the timing reaches a predetermined time period, the SDN controller node 32 will store the spare information generation block during the timing process, and store it after authentication.
  • step 306 the SDN controller node 32 uploads the generated block to the chain so that other SDN controller nodes can obtain it.
  • step 307 the SDN controller node 31 authenticates the acquired block, and stores the block if the authentication is passed.
  • step 308 the SDN controller node 31 and the SDN controller node 32 re-determine the SDN controller node in the central state based on the current resource amount of each node.
  • step 201 the flowchart of some embodiments of the SDN controller node that determines the central state each time is shown in FIG. 4 .
  • step 401 the network device in the SDN control domain will send the packet_in data packet to the SDN controller.
  • the SDN controller calculates the route through the global view and sends the flow table to the network device for installation by the network device.
  • the controller and the network device There are also interactive messages such as "port-status" and "flow-removed”. These operations will occupy a series of resources such as link bandwidth, CPU, memory, and storage of the controller. According to the stock resource amount and available resource amount of each type of each SDN controller node, the used resource amount of the corresponding type is obtained, and the resource consumption ratio of the corresponding type is determined.
  • the resource amount of the corresponding SDN controller node may be obtained according to the resource amount of each virtual machine and the link between the virtual machines constituting the SDN controller node, wherein, Resources are divided into stock resources and available resources.
  • the SDN controller resource data model includes three parts:
  • DOM_ID is used to identify the ID number of the SDN control domain
  • R is the set of stock resources, that is, the sum of the used and available resources of the controller, including C (computing resources), S (storage resources), M (memory resources), and N (network resources).
  • C computing resources
  • S storage resources
  • M memory resources
  • N network resources
  • SDN controller nodes are generally deployed based on virtualized facilities, and a single SDN controller node is composed of one or more virtual machines.
  • Vi is the amount of computing resources of a single virtual machine; Li is the amount of storage resources of a single virtual machine; Wi is the amount of memory resources of a single virtual machine; D i is the amount of network resources of a single link between virtual machines .
  • C j , S j , M j and N j are the computing resources, storage resources, memory resources and network resources of the SDN controller node j, respectively, P is the number of virtual machines constituting the SDN controller node j, Q is the number of links between virtual machines constituting the SDN controller node j; V ij is the amount of computing resources of the virtual machine i in the SDN controller node j; L ij is the amount of storage resources of the virtual machine i in the SDN controller node j; W ij is the memory resource amount of virtual machine i in SDN controller node j; D ij is the network resource amount of link i in SDN controller node j.
  • the available resources of the SDN controller are the remaining resources that are currently not in use, including the remaining computing resources ⁇ C of the virtual machine, the remaining storage resources ⁇ S and the remaining memory resources ⁇ M, and the network resources of the remaining links ⁇ Four types of N.
  • ⁇ C j , ⁇ S j , ⁇ M j and ⁇ N j are the remaining available computing resources, storage resources, memory resources and network resources of the SDN controller node j, respectively.
  • ⁇ V ij is the remaining available computing resources of virtual machine i in SDN controller node j;
  • ⁇ L ij is the remaining available storage resources of virtual machine i in SDN controller node j;
  • ⁇ W ij is SDN controller node The remaining available memory resources of virtual machine i in j;
  • ⁇ D ij is the remaining available network resources of link i in SDN controller node j.
  • the consumption ratio of various resources in the overall resource is calculated as follows:
  • ⁇ 1 to ⁇ 4 are the consumption ratios of computing resources, storage resources, memory resources, and network resources, respectively.
  • step 402 the weight of the resource amount of the corresponding type is determined according to the ratio of the resource consumption ratio of each type to the resource consumption ratio of all types.
  • the weights ⁇ 1 , ⁇ 2 , ⁇ 3 , and ⁇ 4 of computing resources, storage resources, memory resources and network resources are obtained respectively.
  • step 403 for each SDN controller node, a weighted sum is determined according to the available resource amount of each type and the weight of the resource amount of the corresponding type, and an evaluation value of the available resource amount of the corresponding SDN controller node is obtained.
  • the available resource evaluation value ⁇ R j of the SDN controller node j can be obtained based on the following formula:
  • ⁇ R j ⁇ 1 ⁇ C j + ⁇ 2 ⁇ S j + ⁇ 3 ⁇ M j + ⁇ 4 ⁇ N j
  • the stock resource evaluation value ⁇ R j of the SDN controller node j can be obtained based on the following formula:
  • R j ⁇ 1 ⁇ C j + ⁇ 2 ⁇ S j + ⁇ 3 ⁇ M j + ⁇ 4 ⁇ N j
  • the weights of different types of resources are determined based on the consumption of various resources existing at each node, and then the weights can be comprehensively considered when determining the available resource evaluation value, so as to improve the rationality of the remaining resource evaluation and optimize the
  • the accuracy of the selection of SDN controller nodes in the central state further improves the performance and reliability of the SDN controller network.
  • the SDN controller network includes SDN controller nodes 51-5N and links 50 between the nodes, where N is the number of SDN controller nodes.
  • FIG. 6 A schematic diagram of some embodiments of an SDN controller node is shown in FIG. 6 .
  • the block generating unit 601 can generate a block according to the collected information under the condition of being in the center state, and upload the block to the chain, wherein the SDN controller node in the center state is based on the SDN controller node in the SDN controller network. The amount of available resources is determined.
  • the block storage unit 602 When the block storage unit 602 is in the central state, it can store the blocks generated by itself; when it is not in the central state, obtain and store the blocks issued by the controller node in the central state.
  • the central state node determining unit 603 can re-determine the SDN controller node in the central state according to the available resources of each SDN controller node in the SDN controller network after the block storage unit stores the block.
  • Such SDN controller network adopts the form of blockchain network for information management, which improves the reliability of distributed SDN controllers; by dynamically selecting nodes in the central state, information storage is performed using the mechanism of blockchain network. At the same time, it also improves the cooperative operation ability between controllers.
  • the controller node in the central state is responsible for the generation and uploading of blocks, and the controllers in other states accept the blocks produced by the controller node in the central state, reducing the number of blocks in the network. It also reduces the processing pressure of the controller node and improves the robustness of the network.
  • the central state node determining unit 603 can also determine the initial central state SDN controller node according to the available resources of each SDN controller node in the SDN controller network when the initial network construction is completed and the operation starts. , to ensure the automatic cycle operation of the network.
  • the SDN controller network may also include a resource update unit 604 and a verification storage unit 605 .
  • the resource updating unit 604 can send resource change information to the SDN controller node in the central state if its own resources change when the SDN controller node is in the non-central state.
  • the verification storage unit 605 can store the resource change information when the SDN controller node is in the central state, if the verification of the resource change information is passed, and provide the resource change information to the block generation unit, so that the block generation unit will store the resource change information when generating the block.
  • Resource change information as collected information, or as part of collected information.
  • each SDN controller node in a non-central state can send the information generated and collected by itself to the SDN controller node in the central state, and use its ability to generate blocks and upload the chain to realize data storage. Data loss is avoided and the reliability of the SDN controller network is further improved.
  • Each node in the SDN controller network includes a memory 701 and a processor 702 .
  • the memory 701 may be a magnetic disk, a flash memory or any other non-volatile storage medium.
  • the memory is used to store the instructions in the above-mentioned corresponding embodiments of the interaction method of the SDN controller network.
  • the processor 702 is coupled to the memory 701 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller.
  • the processor 702 is configured to execute the instructions stored in the memory, which can improve the reliability of the distributed SDN controller, reduce the processing pressure of the controller node, and improve the robustness of the network.
  • each node 800 of the SDN controller network includes a memory 801 and a processor 802 .
  • Processor 802 is coupled to memory 801 through BUS 803 .
  • Each node 800 of the SDN controller network can also be connected to an external storage device 805 through a storage interface 804 for recalling external data, and can also be connected to a network or another computer system (not shown) through a network interface 806 . It will not be described in detail here.
  • the data instructions are stored in the memory, and the above instructions are processed by the processor, which can improve the reliability of the distributed SDN controller, reduce the processing pressure of the controller nodes, and improve the robustness of the network.
  • a non-transitory computer-readable storage medium has computer program instructions stored thereon, and when the instructions are executed by a processor, implement the steps of the method in the corresponding embodiment of the method for interacting with the SDN controller network.
  • embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein .
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.
  • the methods and apparatus of the present disclosure may be implemented in many ways.
  • the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware.
  • the above-described order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise.
  • the present disclosure can also be implemented as programs recorded in a recording medium, the programs including machine-readable instructions for implementing methods according to the present disclosure.
  • the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Abstract

La présente invention concerne le domaine technique des réseaux définis par logiciel (SDN) et a trait à un réseau de contrôleurs SDN et à un procédé d'interaction associé, ainsi qu'à un support de stockage. Le procédé d'interaction pour un réseau de contrôleurs SDN selon la présente invention comprend : un nœud de contrôleur SDN dans un état central dans le réseau de contrôleurs SDN générant un bloc selon des informations acquises et ajoutant le bloc à une chaîne, le réseau de contrôleurs SDN étant un réseau de chaînes de blocs, et le nœud de contrôleur SDN dans l'état central étant déterminé selon une quantité de ressources disponibles de nœuds de contrôleur SDN dans le réseau de contrôleurs SDN ; un nœud de contrôleur SDN dans un état non central dans le réseau de contrôleurs SDN obtenant et stockant le bloc ; et les nœuds de contrôleur SDN dans le réseau de contrôleurs SDN déterminant à nouveau le nœud de contrôleur SDN dans l'état central selon la quantité de ressources disponibles des nœuds de contrôleur SDN dans le réseau de contrôleurs SDN. Au moyen d'un tel procédé, la fiabilité d'un contrôleur SDN distribué peut être améliorée ; le nombre de blocs dans le réseau est réduit ; la pression de traitement des nœuds de contrôleur est également réduite ; et la robustesse du réseau est améliorée.
PCT/CN2021/128586 2021-03-30 2021-11-04 Réseau de contrôleurs de réseau défini par logiciel et procédé d'interaction associé, et support de stockage WO2022205905A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110339592.XA CN115150393A (zh) 2021-03-30 2021-03-30 软件定义网络控制器网络及其交互方法和存储介质
CN202110339592.X 2021-03-30

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WO2022205905A1 true WO2022205905A1 (fr) 2022-10-06

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