CN-121984912-A - Transmission path planning method and device for controlled network environment data sharing exchange

CN121984912ACN 121984912 ACN121984912 ACN 121984912ACN-121984912-A

Abstract

The application relates to a transmission path planning method and a transmission path planning device for controlled network environment data sharing exchange, belonging to the technical field of network communication and data transmission. The method comprises the steps of calculating comprehensive suitability scores of service links of a controlled network subdomain on current service according to a security-performance dynamic coupling model and taking the comprehensive suitability scores as service link coupling characteristics, aggregating service link coupling characteristics of all subdomains, generating global characteristic vectors, inputting a strategy generating model, outputting a basic path strategy of cross-domain data sharing exchange and storing the basic path strategy into a historical strategy library, carrying out path migration adaptation on the service link coupling characteristics of the new service characteristics or the new subdomains and the basic path strategy when the service is updated or the new subdomains are added, outputting a target path strategy, carrying out similarity comparison with a historical optimal value, and triggering strategy fine adjustment based on comparison results to obtain the optimal path strategy. The method can realize efficient, safe and flexible data sharing exchange in a controlled network environment.

Inventors

ZHOU HAOHAO
DAI CHAOFAN
MA WUBIN
WU YAHUI

Assignees

中国人民解放军国防科技大学

Dates

Publication Date: 20260505
Application Date: 20260408

Claims (10)

1. A transmission path planning method for controlled network environment data sharing exchange, the method comprising: for a service link between a service source node and a service target node in each sub-domain in a controlled network environment, calculating the comprehensive suitability score of the service link to the current service according to a security-performance dynamic coupling model, wherein all sub-domains in the controlled network environment participate in the same service; The comprehensive suitability score of the service link is used as a service link coupling characteristic, the service link coupling characteristics of all subdomains are aggregated through a federal average algorithm, a global characteristic vector related to the current service in a controlled network environment is generated, a strategy generating model based on a variation self-encoder is input, a basic path strategy of cross-subdomain service data sharing exchange is output, and the basic path strategy is stored in a history strategy library; When a service is updated or a new subdomain is added, a domain self-adaptive network is adopted to carry out path migration adaptation on the service link coupling characteristics of the new service characteristics or the new subdomain and the basic path strategy, a target path strategy for cross-subdomain service data sharing exchange of the new service or the new subdomain is output, the target path strategy is compared with an optimal value in the history strategy library in similarity, and strategy fine adjustment is triggered based on a comparison result, so that the optimal path strategy is obtained to realize cross-subdomain service data sharing exchange after the new service or the new subdomain is added.
2. The transmission path planning method for controlled network environment data sharing exchange according to claim 1, wherein the comprehensive suitability score of the service link for the current service is calculated according to a security-performance dynamic coupling model, expressed as: ; ; ; Wherein, the Representing service source nodes To a business target node The overall suitability score of the traffic links between to the current traffic, The closer the value of (2) is to 1, the better the comprehensive suitability of the service link to the current service is; representing the security-performance adaptation of the traffic link; The basic score of the security policy of the service link is quantitatively determined by the service security rule; For service link Real-time bandwidth availability at the moment of time, For service link Real-time load factor of time of day, For service link The real-time transmission delay of the moment in time, Is an anti-zero value coefficient; The weight is coupled for the service scene requirement, and the service data security level Real-time grade with business Dynamically generating; 、 The method comprises the steps of respectively obtaining a required bandwidth threshold value and a required time delay threshold value of the current service, wherein the type of the service link comprises direct connection or multi-hop.
3. The transmission path planning method for controlled network environment data sharing exchange according to claim 2, wherein the step of aggregating the service link coupling characteristics of all subzones by a federal average algorithm to generate a global feature vector related to the service in the controlled network environment includes: Taking each sub-domain in the controlled network environment as an independent federation hub, and extracting the comprehensive suitability score of the corresponding service link by each federation hub as the service link coupling characteristic ; Aggregating all federal hub service link coupling characteristics through federal average algorithm to generate global characteristic vector related to current service in controlled network environment Expressed as: ; Wherein, the For the total number of subfields, Is a subdomain index.
4. A transmission path planning method for a controlled network environment data sharing exchange according to claim 3, wherein generating a global feature vector related to a current service in the controlled network environment and inputting a policy generation model based on a variation self-encoder, outputting a basic path policy for the cross-subdomain service data sharing exchange, and storing in a history policy library, comprises: global feature vector relating current traffic in a controlled network environment Inputting a strategy generation model based on a variation self-encoder, wherein the strategy generation model firstly uses the encoder to make the global feature vector Compressing into a low-dimensional potential distribution for capturing global network state of the controlled network environment under the current service, sampling from the potential distribution to obtain a hidden vector representing the global network state, and decoding the sampled hidden vector into a basic path strategy of data sharing exchange of the sub-domain service And store in a history policy repository Wherein the base path policy defines source subzone, target subzone, transit subzone, routing priority, base bandwidth allocation, data exchange base rules, and security compliance constraints for the data sharing exchange across subzones.
5. The transmission path planning method for controlled network environment data sharing exchange according to claim 4, wherein when a service is updated or a new subdomain is added, a domain adaptive network is adopted to perform path migration adaptation on a new service feature or a service link coupling feature of the new subdomain and the basic path policy, and a target path policy for adapting to cross-subdomain service data sharing exchange to which the new service or the new subdomain is added is output, including: When service is updated or new subdomain is added, domain self-adaptive network is adopted to characteristic new service Or new subdomain service link coupling features and underlying path policies And performing path migration adaptation, and outputting a target path strategy for adapting to the data sharing exchange of the new service or the cross-subdomain service added by the new subdomain, wherein the target path strategy is expressed as follows: ; Wherein, the Representing a model of policy generation based on a variational self-encoder, Global feature vector responsible for correlation according to current traffic in a controlled network environment Generating basic path strategy for cross-subdomain business data sharing exchange ; A domain-adaptive network is represented, Responsible for new service features Or new subdomain service link coupling features and underlying path policies Performing path migration adaptation to generate a target path strategy for adapting to data sharing exchange of new service or new sub-domain added cross-sub-domain service 。
6. The transmission path planning method for controlled network environment data sharing exchange according to claim 5, wherein comparing the target path policy with an optimal value in the history policy base in similarity, triggering policy fine-tuning based on a comparison result, comprising: policy of target path And history policy library The optimal value in the path is subjected to similarity comparison, and if the similarity is higher than a preset threshold value, the obtained optimal path strategy is equal to the target path strategy Otherwise, the target path strategy after fine tuning is performed As the optimal path strategy, wherein the history strategy library The optimal value of (3) is determined based on business experience rules.
7. The transmission path planning method for controlled network environment data sharing exchange of claim 1, wherein after calculating the overall suitability score of the traffic link for the current traffic according to a security-performance dynamic coupling model, the method further comprises: Collecting comprehensive suitability scores of service links of a current subdomain in a historical period, forming comprehensive suitability score time sequence data, inputting an abnormal pre-judging model based on a long-short-period memory network, and predicting and outputting probability values of the service links belonging to abnormal types in a future period of time, namely outputting abnormal probabilities, wherein the abnormal types comprise link faults, bandwidth dip and load surge; The method comprises the steps of judging whether the abnormal probability is in a preset range, if the abnormal probability is smaller than the minimum value of the preset range, maintaining a current service link unchanged, if the abnormal probability is in the preset range, starting a bandwidth reservation mechanism of the candidate service link, namely calculating comprehensive suitability scores of other data transmission links between a service source node and a service target node in a current sub-domain, except for the service link, according to a safety-performance dynamic coupling model, selecting the first two data transmission links with the scores from high to low as the candidate service link, reserving 1.2 times of the bandwidth required by the current service in the candidate service link, automatically selecting one of the candidate service links as the latest service link when the original service link is abnormal, maintaining uninterrupted service data sharing exchange in the current sub-domain, and stopping service data sharing exchange and reporting errors in the current sub-domain if the abnormal probability is larger than the maximum value of the preset range, wherein the candidate service link is multi-hop when the service link is direct connection, and the candidate service link is direct connection or multi-hop when the service link is multi-hop.
8. The transmission path planning method for controlled network environment data sharing exchange of claim 7, wherein the abnormal pre-judgment model is trained to minimize pre-judgment error loss For the purpose of training, wherein, The anomaly probability of the current training sample output for the model prediction, And (5) actually labeling the abnormal label for the current training sample.
9. The transmission path planning method for controlled network environment data sharing exchange of claim 7, wherein the method further comprises: And inputting the abnormal probability of the service link predicted and output by the abnormal pre-judging model into a Markov chain model, and correcting the abnormal probability in the Markov chain model by utilizing the change rate of the comprehensive suitability score of the calibration coefficient and the service link in the historical period to obtain the corrected abnormal probability.
10. A transmission path planning apparatus for controlled network environment data sharing exchange, the apparatus comprising: the system comprises a first module, a second module and a third module, wherein the first module is used for calculating the comprehensive suitability score of a service link to a current service according to a security-performance dynamic coupling model aiming at the service link between a service source node and a service target node in each sub-domain in a controlled network environment, wherein all sub-domains in the controlled network environment participate in the same service; The second module is used for taking the comprehensive suitability score of the service link as a service link coupling characteristic, aggregating the service link coupling characteristics of all subdomains through a federal average algorithm, generating a global characteristic vector related to the current service in the controlled network environment, inputting a strategy generating model based on a variation self-encoder, outputting a basic path strategy for sharing and exchanging the service data of the cross-subdomain, and storing the basic path strategy into a history strategy library; And the third module is used for carrying out path migration adaptation on the service link coupling characteristics of the new service characteristics or the new subdomains and the basic path strategies by adopting a domain self-adaptive network when the service is updated or the new subdomains are added, outputting a target path strategy for the cross-subdomain service data sharing exchange of the new service or the new subdomain, comparing the similarity of the target path strategy and the optimal value in the history strategy library, triggering strategy fine adjustment based on the comparison result, and obtaining the optimal path strategy so as to realize the cross-subdomain service data sharing exchange after the new service or the new subdomain is added.

Description

Transmission path planning method and device for controlled network environment data sharing exchange Technical Field The present application relates to the field of network communication and data transmission technologies, and in particular, to a transmission path planning method and apparatus for data sharing exchange in a controlled network environment. Background The shared exchange of data in a controlled network environment is directly related to the collaborative development of services and the efficient formulation of decisions. However, there are a number of significant problems with regard to transmission path planning in the data sharing exchange in the current controlled network environment. Firstly, the traditional transmission path planning method only considers single factors (such as network bandwidth or time delay), and is difficult to comprehensively balance multidimensional influence factors, so that the transmission efficiency is low, meanwhile, the situation that the path selection is unreasonable frequently occurs, and the phenomena of overload of partial subdomain link loads and idle resource waste of other subdomain link resources often occur. In addition, the controlled network environment has extremely high requirements on security, the traditional method is not careful when dealing with complex security strategies, and the security of data transmission is difficult to be effectively ensured. Moreover, for different data types, security levels and service requirements, the traditional method is difficult to realize flexible strategy configuration and call, and has poor adaptability. In summary, the existing transmission path planning method has obvious defects in the aspects of multi-objective comprehensive optimization, network resource balanced scheduling, security policy deep fusion, differentiated service adaptation and the like, and can not meet the core requirements of data sharing exchange on high efficiency, high safety, high reliability and high flexibility in a controlled network environment. Disclosure of Invention Based on this, it is necessary to provide a transmission path planning method and apparatus for controlled network environment data sharing exchange in order to solve the above technical problems. A transmission path planning method for controlled network environment data sharing exchange, the method comprising: For a service link between a service source node and a service target node in each sub-domain in a controlled network environment, calculating the comprehensive suitability score of the service link to the current service according to a security-performance dynamic coupling model, wherein all sub-domains in the controlled network environment participate in the same service; the comprehensive suitability score of the service link is used as a service link coupling characteristic, the service link coupling characteristics of all subdomains are aggregated through a federal average algorithm, a global characteristic vector related to the current service in a controlled network environment is generated, a policy generation model based on a variation self-encoder is input, a basic path policy of cross-subdomain service data sharing exchange is output, and the basic path policy is stored in a history policy library; When a service is updated or a new subdomain is added, a domain self-adaptive network is adopted to carry out path migration adaptation on the service link coupling characteristics of the new service characteristics or the new subdomain and a basic path strategy, a target path strategy for cross-subdomain service data sharing exchange adapting to the new service or the new subdomain addition is output, the target path strategy is compared with an optimal value in a history strategy library in similarity, and strategy fine adjustment is triggered based on a comparison result to obtain an optimal path strategy so as to realize the cross-subdomain service data sharing exchange after the new service or the new subdomain addition. In one embodiment, the overall suitability score of a business link for a current business is calculated according to a security-performance dynamic coupling model, expressed as: ; ; ; Wherein, the Representing service source nodesTo a business target nodeThe overall suitability score of the traffic links between to the current traffic,The closer the value of (2) is to 1, the better the comprehensive suitability of the service link to the current service is; representing the security-performance adaptation of the traffic link; The basic score of the security policy of the service link is quantitatively determined by the service security rule; For service link Real-time bandwidth availability at the moment of time,For service linkReal-time load factor of time of day,For service linkThe real-time transmission delay of the moment in time,Is an anti-zero value coefficient; The weight is coupled for the service scene requiremen