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A Method for Fairly Allocation of Bandwidth to Multiple Users in Optical Network

A multi-user, optical network technology, applied in the network field, can solve the problem that bandwidth resources cannot be shared fairly, and achieve the effect of multi-user fair sharing of network resources and improvement of fairness

Active Publication Date: 2018-06-12
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the disadvantage that the existing shared network bandwidth resources cannot be shared fairly, and propose a method for realizing the fair distribution of multi-user bandwidth in optical networking

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  • A Method for Fairly Allocation of Bandwidth to Multiple Users in Optical Network

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Embodiment Construction

[0017] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] When optical networking multi-users share network bandwidth, firstly define the fairness (Fi) of bandwidth resources used by each user when a certain section of optical fiber link is congested (that is, there are not enough resources for new incoming services).

[0019] For example, a definition of fairness is:

[0020] Fi = the bandwidth actually allocated to a certain user minus the bandwidth that should be allocated according to the user's weight in the total link bandwidth (Definition 1)

[0021] Wherein, the bandwidth that should be allocated according to the user's weight in the total link bandwidth=total link bandwidth×weight ratio (the weight ratio is equal to the weight of the user divided by the sum of the weights of all users on the link). The user weight is a positive value, which is a pre-configured value for the user. ...

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Abstract

In order to overcome the disadvantage that existing shared network bandwidth resources cannot be shared fairly, the present invention proposes a method for realizing the fair distribution of multi-user bandwidth in optical networking. The method includes the following steps: when a new service requirement appears in the network, judge whether the service is blocked; when the service is found to be blocked, calculate the degree of fairness of the users to whom the new service belongs; and judge the fairness of resource allocation. Determine whether the user to which the new service belongs is an ultra-fair user, and if so, reject the service; otherwise, the user with the largest fairness value is the target user, and adjust the bandwidth occupied by the target user so that the fairness of the target user It is close to ideal fairness, generating idle spectrum resources; judging whether the idle spectrum resources meet the new service requirements, and if so, end. Otherwise change the target user. The method of the invention achieves the effect of fair sharing of network resources by multiple users due to the adoption of the technical measure of network bandwidth fairness calculation.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a method for fairness among multiple users of a data center in an optical network. Background technique [0002] With the development of cloud computing and multiple cloud services, data centers are faced with the situation that multiple users share computing resources (CPU and RAM), storage resources and network resources. With the help of virtualization products, the multi-user environment of the data center provides the choice of CPU frequency and memory size, but cannot provide bandwidth guarantee and fairness strategy. In the data network, fairness can be defined in many ways. For example, users who pay more should get more bandwidth than users who pay less, users who pay the same should have the same service blocking rate, and so on. In the network, users' eligibility for services is measured by their "weight". [0003] In IP networks, there are many studies on fair shar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/911
Inventor 张杰赵永利陈浩然杨辉
Owner BEIJING UNIV OF POSTS & TELECOMM
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