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Dynamic energy-saving scheduling method and system for data center network in SDN (Software Defined Network) environment

A technology of data center network and scheduling method, applied in the field of dynamic energy-saving scheduling of data center network, can solve problems such as inability to realize energy-saving scheduling, and achieve the effects of reducing the number of flow entries, reducing energy consumption of network resources, and improving computing efficiency

Pending Publication Date: 2022-04-26
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

At present, the scheduling of the two streams generally adopts a static load balancing method for scheduling, but in unpredictable situations, effective energy-saving scheduling cannot be achieved

Method used

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  • Dynamic energy-saving scheduling method and system for data center network in SDN (Software Defined Network) environment
  • Dynamic energy-saving scheduling method and system for data center network in SDN (Software Defined Network) environment
  • Dynamic energy-saving scheduling method and system for data center network in SDN (Software Defined Network) environment

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Embodiment Construction

[0040] The method for dynamic energy-saving scheduling of a data center network in an SDN environment described in this embodiment, the flowchart is as follows figure 1 As shown, the scheduling method includes the following steps:

[0041] (1) The switch forwards the flow information to the data center network, the data center network analyzes the capacity information of each link, and then forwards the flow information to the SDN controller, and the SDN controller establishes a network topology structure according to the data information;

[0042] (2) The SDN controller detects the received flow information. If it is a mouse flow, it uses the static load balancing mechanism for scheduling. When the mouse flow is scheduled through the static load balancing mechanism, the mouse flow is deleted from the set; If it is an elephant flow, go to step (3);

[0043] The steps to detect whether it is an elephant flow include:

[0044] Calculate the total transmission capacity of strea...

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Abstract

The invention discloses a dynamic energy-saving scheduling method for a data center network in an SDN (Software Defined Network) environment, which comprises the following steps that: (1) a switch forwards flow information to the data center network and forwards the flow information to an SDN controller; (2) the SDN controller detects the received flow information, and if the flow information is mouse flow, a static load balancing mechanism is used for scheduling; if the elephant flow is the elephant flow, entering the step (3); (3) scheduling the received elephant streams together with the elephant streams which are not transmitted before, and calculating the scheduling sequence and speed for the elephant streams in the set by adopting a key interval priority algorithm; and (4) the SDN controller issues a flow table according to a scheduling result, and issues the elephant flow and the mouse flow to corresponding links to realize energy-saving scheduling. According to the method, the elephant flow and the mouse flow are reasonably distinguished through the SDN controller, the network resource energy consumption of the data center is reduced, the number of flow entries of dynamic scheduling is greatly reduced, and the calculation efficiency of the SDN controller is improved.

Description

technical field [0001] The invention relates to the technical field of data center network traffic scheduling, in particular to a data center network dynamic energy-saving scheduling method and system in an SDN environment. Background technique [0002] The current data center network traffic characteristics show the distribution characteristics of elephant flow and mouse flow. The elephant flow includes video, download and transmission, and games, etc., and the mouse flow includes instant text communication services, e-commerce, etc., and the mouse flow has a large number of , Occupy less bandwidth, Elephant Stream has the characteristics of less number and more bandwidth. Currently, a static load balancing method is generally used for scheduling of the two streams, but in an unpredictable situation, efficient energy-saving scheduling cannot be achieved. SUMMARY OF THE INVENTION [0003] Purpose of the invention: In view of the above problems, the purpose of the present ...

Claims

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Application Information

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IPC IPC(8): G06F9/50
CPCG06F9/505
Inventor 郭永安余德泉田丰佘昊钱琪杰
Owner NANJING UNIV OF POSTS & TELECOMM
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