A method of improving network throughput based on software-defined network flow scheduling
A software-defined network and flow scheduling technology, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as service flow cannot be delivered smoothly, QoS cannot be guaranteed, performance is insufficient for multimedia services, etc., to achieve network performance improvement, The effect of improving performance and improving utilization
Active Publication Date: 2019-12-31
XI AN JIAOTONG UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a method for improving network throughput based on software-defined network flow scheduling. Combining the path with the greedy algorithm, by migrating the best-effort service flow in the network, in the case of not satisfying the flow segmentation, it solves the problem of bandwidth fragmentation that causes the large service flow to be delivered unsmoothly, and the performance of some network devices is insufficient The problem that the QoS of the multimedia service cannot be guaranteed; in the service QoS guarantee, the best-effort delivery service with a high tolerance to delay and packet loss rate in the network link is migrated, so that the multimedia service that needs to be delivered in time Delivered smoothly, the present invention can improve the transmission quality of multimedia service streams, and further improve the throughput of network services with higher QoS requirements
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0035] In the method for improving network throughput based on software-defined network described in the present invention, the schematic diagram of the network before flow migration is as follows figure 1As shown, there are various services in the network that are sent from the source host Src to the destination node host Dst, and the network already carries service flows: they are best-effort services, the transmission paths are ADM and AEM, and the occupied bandwidth resource is 7M / s ; Data service, its transmission path is AFGHM, occupying bandwidth resources of 8M / s; Audio service, its transmission path is ABCM, occupying bandwidth resources of 11M / s. Now there are two service flows: Video service, which needs to occupy a bandwidth of 20M / s; Audio service, which requires a delay of less than 1ms and needs to be sent from the source node to the de...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A method for improving network throughput based on software-defined network flow scheduling. In an SDN environment, using the global advantages of SDN centralized control, the improved K shortest path is combined with the greedy algorithm, and the best-effort delivery service in the network is Flow migration, in the case of not satisfying flow segmentation, to solve the problem that the large service flow cannot be delivered smoothly due to the problem of bandwidth fragmentation, and the problem that the multimedia service QoS cannot be guaranteed due to the insufficient performance of some network equipment; in the service QoS guarantee In the network link, by migrating the best-effort service with high tolerance to delay and packet loss rate in the network link, so that the multimedia service that needs to be delivered in time can be delivered smoothly, the present invention can improve the transmission quality of the multimedia service flow, and Further improve the throughput of network services with high QoS requirements.
Description
technical field [0001] The present invention relates to a novel flow scheduling method under a software-defined network architecture, in particular to a method for improving network throughput based on a software-defined network flow scheduling that performs flow migration at a minimum cost based on a greedy strategy. Background technique [0002] The link load balancing method for service flows in the network is usually to evenly distribute multiple service flows to paths that can meet their bandwidth requirements. This method can prevent multiple service flows from concentrating on certain specific network links, thereby reducing congestion, increasing network processing capabilities, and improving network throughput. Correspondingly, link load balancing also has some disadvantages. In some application scenarios, when a new network service flow is transmitted, the sum of the remaining bandwidth resources of multiple paths in the network is greater than the bandwidth demand...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/705H04L12/721H04L12/725H04L12/729H04L12/803H04L12/863H04L12/873H04L12/877H04L45/18H04L45/125H04L47/52H04L47/525
CPCH04L45/12H04L45/125H04L45/18H04L45/302H04L45/308H04L47/125H04L47/525H04L47/528H04L47/6215
Inventor 曲桦赵季红李方成樊斌
Owner XI AN JIAOTONG UNIV