Software-defined network qos routing method based on delay prediction and double ant colony

Abstract

The invention discloses a software-defined network QoS routing method based on time delay prediction and double ant colony. It includes the steps of: building a network delay prediction network, and selecting delay data samples of network traffic to train the network delay prediction network; inputting the network traffic in the SDN network into the network delay prediction network, the network time delay The delay prediction network collects the historical delay data of the network traffic, predicts based on the historical delay data of the network traffic, and then outputs the predicted delay data of the network traffic; adopts the double ant colony algorithm, based on the network traffic The predicted delay data of the traffic is used to find an optimal path in the SDN network to transmit the network traffic. Based on the network-guided double ant colony algorithm of delay prediction, the invention calculates that the path with lower delay and occupied bandwidth is used to transmit network data, which greatly reduces the packet loss rate in the network transmission process and improves the efficiency of network transmission. .

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a software-defined network QoS routing method based on time delay prediction and double ant colony. Background technique [0002] With the rapid development of network technology, the expansion of network scale and the increase in the number of applications, users have put forward new requirements for network service quality assurance. needs to be guaranteed. However, the traditional network architecture is complex, and it is difficult to obtain a global view, which limits the design and deployment of routing algorithms, and cannot provide ideal QoS guarantees. Once the network is congested, traditional routing protocols cannot adjust policies in time to adapt to the distribution of traffic, resulting in high latency, packet loss and jitter. [0003] Software-defined networking is an emerging network architecture in recent years, which has attracted widespread ...

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Problems solved by technology

[0004] However, Software Defined Network (SDN for short) usually relies on the OpenFlow protocol to count the delay on the network link, and then bring the delay into the algorithm, but such statistics are lagging. If congestion occurs in the network, it cannot be done immediately. react to adjust traffic, often resulting in end-to-end delay, jitter and packet loss

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