Cloud data center tenant exit flow rate limiting method and system
A cloud data center and export traffic technology, applied in the computer field, can solve the problems of increased allocation bandwidth quota delay, decreased speed limit accuracy, poor scalability, etc., to achieve the effect of improving speed limit accuracy and reducing overhead
Pending Publication Date: 2021-10-29
TSINGHUA UNIV
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Problems solved by technology
[0005] The present invention provides a cloud data center tenant export traffic rate limiting method and system, which are used to solve the problem of poor scalability and prone to computing bandwidth quotas and communication problems in the case of a large number of tenants in the cloud data center in related technologies Bottlenecks cause a large amount of computing resources and bandwidth resource overhead, increase the delay in allocating bandwidth quotas, and lead to technical problems that reduce the speed limit accuracy
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[0069] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0070] The terms "first", "second" and the like in the description and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that embodiments of the invention can be practiced in sequences other than those illu...
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The invention provides a cloud data center tenant exit flow rate limiting method and system, and the method comprises the steps: starting a timer, receiving and carrying out the statistics of data packages of tenants in a current period, obtaining the local flow rate information of the tenants based on all data packages of the tenants in the current period, generating a local bandwidth demand packet of the tenant based on the local traffic rate information of the tenant; under the condition that the timing of the timer reaches the current period, sending the local bandwidth demand packet of the tenant to the switch; receiving a global bandwidth demand packet of the tenant sent by the switch, and calculating a bandwidth quota of the tenant based on the local flow rate information of the tenant and the global bandwidth demand packet of the tenant; and modifying the speed limiting parameter based on the bandwidth quota of the tenant, and limiting the speed of the data packet of the tenant in the next period based on the speed limiting parameter. According to the invention, the overhead of computing resources and bandwidth resources can be effectively reduced, and the speed limiting precision is improved.
Description
technical field [0001] The present invention relates to the field of computer technology, in particular to a method and system for limiting the rate of traffic at the outlet of a cloud data center tenant. Background technique [0002] The cloud provider provides shared bandwidth services for the egress traffic of the cloud data center. Tenants purchase a group of virtual machines to reuse a shared bandwidth. The cloud vendor limits the speed of the tenant's virtual machines in real time to ensure that the sum of the egress traffic of all the virtual machines of the tenant does not exceed the tenant's leased bandwidth to implement tenant-level rate limiting. At present, when the tenant's data packets are distributed to multiple gateway servers of the cloud gateway, the difficulty of implementing tenant-level speed limit lies in the comprehensive speed limit of multiple gateway servers. [0003] In related technologies, a centralized controller is used to dynamically estimate...
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IPC IPC(8): H04L12/815H04L12/825H04L12/911H04L12/927H04L47/22H04L47/80
CPCH04L47/225H04L47/25H04L47/80H04L47/827H04L47/6215H04L47/801H04L47/762H04L47/808H04L47/781
Inventor 任丰原范英晨钱坤
Owner TSINGHUA UNIV