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A method for fair allocation of bandwidth resources in a multi-tenant data center

A data center and bandwidth resource technology, applied in the field of network virtualization, can solve problems such as fairness, impact on operator revenue, and decrease in bandwidth utilization, so as to improve usage efficiency and facilitate large-scale promotion and application

Inactive Publication Date: 2017-03-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Claims
  • Application Information

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Problems solved by technology

If the multi-tenant fully competitive bandwidth allocation method is adopted, bandwidth resources can be fully utilized, but it will cause fairness issues, that is, tenants cannot be guaranteed to obtain the required network bandwidth resources
If the bandwidth allocation method of static allocation is adopted, tenants can be guaranteed to share bandwidth resources fairly, but it will cause efficiency problems, that is, when tenants do not use bandwidth, the bandwidth resources statically allocated to it cannot be used by other tenants, resulting in bandwidth Utilization drops, impacting operator revenue

Method used

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Embodiment Construction

[0027] The present invention is described in detail below in conjunction with accompanying drawing:

[0028] Concrete workflow of the present invention is as figure 1 shown.

[0029] Such as figure 2 As shown, according to step 1, the centralized controller collects communication flow information of all tenants in the data center. A complete communication flow is represented by a quaternion , where p represents the source virtual machine of the flow, q represents the sink virtual machine of the flow, and S represents the virtual machine p belongs to The tenant of q (called the source tenant), and D represents the tenant to which the virtual machine q belongs (called the sink tenant).

[0030] In a multi-tenant data center network, a virtual machine is a collection of virtual computing resources (such as CPU) and virtual storage resources (such as memory capacity, storage capacity), and is used as a basic unit of virtual resources. If the source tenant of the flow is the s...

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Abstract

The invention relates to an equitable distribution method of bandwidth resources of a multi-tenant data center and belongs to the field of network virtualization. The method includes the steps: a central controller collects traffic flow information of all tenants of the multi-tenant data center and searches for information of source tenants and host tenants related to the traffic flow information; each traffic flow is traversed, and a physical path that each traffic flow passes is calculated; whether each traffic flow is an internal traffic flow or not is checked out, and weight of each traffic flow is calculated; finally, the internal traffic flow of each physical link and a bandwidth share of the external traffic flow are calculated, and a bandwidth distribution value of each traffic flow is calculated. The method has the advantages that equitable sharing is guaranteed for tenants, usage efficiency of the bandwidth resources can be improved, and large-scale popularization and application of the multi-tenant data center is favored.

Description

technical field [0001] The invention relates to a method for fairly allocating bandwidth resources in a multi-tenant data center, belonging to the field of network virtualization. Background technique [0002] Currently, data centers usually use multi-tenant technology to abstract physical hardware resources (such as CPU, storage, bandwidth, etc.) into virtual resources (such as virtual machines) to support a large number of concurrent users. Each user (also known as a tenant) can rent virtual resources from the data center operator according to business needs, and pay according to the resource usage. Therefore, on the one hand, a multi-tenant data center can support tenants to flexibly adjust the usage scale of virtual resources according to business needs, and on the other hand, it can improve the utilization rate of physical resources, thereby increasing operators' revenue. [0003] In a data center network, bandwidth resources are very scarce compared to computing resou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/911
Inventor 沈蒙李凡
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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