Traffic Scheduling Method for Data Center Wide Area Network with Low Bandwidth Overhead

Abstract

The invention relates to a low-bandwidth-overhead traffic scheduling method for a data center wide area network, and is a wide area network traffic scheduling control scheme. Its function is to reduce the bandwidth rental cost of data center WAN users through reasonable scheduling of large flow transmission on the basis of considering issues such as small flow, link failure, and guaranteed flow completion time. The system execution process is as follows: 1) Each data center proxy server periodically collects traffic requests from corresponding data centers (including traffic demand, deadline, source and destination nodes), and sends the request information to the central controller; On the basis of problems such as traffic flow, link failure, and guaranteed flow completion time, it can reasonably schedule large flows to reduce network bandwidth overhead. The present invention can also effectively reduce the cost of renting bandwidth from the Internet service provider by the data center wide area network user under the premise of guaranteeing the service quality, and reduce the operation cost.

Description

technical field [0001] The invention belongs to the technical field of the Internet, relates to a traffic scheduling technology, and in particular to a low-bandwidth overhead traffic scheduling method for a data center wide area network. Background technique [0002] Many network service providers and cloud service providers maintain multiple data centers to support their business, such as Microsoft, Google. These data centers run a variety of globally distributed applications, and they are distributed in different geographical regions, which determines that they need to communicate with each other across geographical regions. The wide area network ensures that these data centers can played a key role in communication. A large amount of data transmission flow between data centers leads to high bandwidth overhead, and data center owners have to rent WAN bandwidth from Internet service providers every year, costing hundreds of millions. What's more serious is that unreasonab...

AI Technical Summary

Problems solved by technology

Because the traffic passing through each data center needs to be temporarily stored, the device deployment under this idea needs to add additional storage devices in each data center, which not only increases storage overhead, but also makes traffic scheduling more complicated.

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