CN111049699B - Reliability test method and device for SDN controller - Google Patents
Reliability test method and device for SDN controller Download PDFInfo
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- 238000013142 basic testing Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000006467 substitution reaction Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
- H04L43/087—Jitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
The invention relates to a method and a device for testing the reliability of an SDN controller, which comprises the following steps: s1: the method comprises the following steps of building a basic test environment, specifically comprising the following steps: s11: creating a plurality of virtual hosts in the physical host a, S12: adding the virtual host to other data centers managed by the central controller; s13: creating SDN switches with different forwarding modes in each data center; s14: the SDN controller is associated with the data center; s2: testing the SDN reliability; the method specifically comprises the following steps: s21: the SDN controller creates an SDN network and a router; s22: the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; and checking the memory utilization rate and the CPU utilization rate of the SDN controller.
Description
Technical Field
The invention belongs to the technical field of testing, and particularly relates to a method and a device for testing the reliability of an SDN controller.
Background
The SDN is a software defined network, can virtualize the network, realizes data forwarding and control separation, is more beneficial to centralized control of the network after the control and forwarding are separated, enables a control layer to obtain global information of network resources, and performs global allocation and optimization of the resources according to service requirements. As can be seen, the performance and reliability bottlenecks of the SDN technology are due to the SDN controller, and therefore, the SDN controller reliability test is very necessary.
The SDN is a novel network architecture and has the advantages of flexibility, intelligence, automation, programmability, resource pooling, service perception and the like. All of these advantages rely on the core component, the controller, in the SDN network. As the brain that manages the whole network in a central control manner, the performance of the controller is related to the performance of the whole network, so the reliability and performance test of the SDN controller are very important. The existing method uses a physical host and a switch, and occupies more resources; this is a drawback and deficiency in the prior art.
In view of this, the present application provides a method and an apparatus for testing reliability of an SDN controller; it is very necessary to solve the above-mentioned defects existing in the prior art.
Disclosure of Invention
In view of the foregoing defects in the prior art, the present invention provides a method and an apparatus for testing the reliability of an SDN controller, so as to solve the foregoing technical problems.
In a first aspect, the present invention provides a method for testing reliability of an SDN controller, including the following steps:
s1: the method comprises the following steps of building a basic test environment, specifically comprising the following steps:
s11: creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts with the physical host through a trunk network;
s12: adding the virtual host to other data centers managed by the central controller;
s13: creating SDN switches with different forwarding modes in each data center;
s14: the SDN controller is associated with the data center;
s2: testing the SDN reliability; the method specifically comprises the following steps:
s21: the SDN controller creates an SDN network and a router;
s22: the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; and outputting the memory and CPU use condition of the SDN controller. And comparing the network delay and the jitter.
Preferably, in step S22, when both the memory usage rate and the CPU usage rate are less than 50%, the number of virtual hosts is doubled, the virtual hosts are added to a new data center, an SDN switch is created in the new data center, and an SDN controller is associated with the SDN switch. And checking the memory utilization rate or the CPU utilization rate, and continuously testing the network delay and jitter.
Preferably, in step S22, when one of the memory usage rate or the CPU usage rate is greater than 50%, the memory usage rate and the CPU usage rate information of the SDN controller are recorded, virtual hosts and data centers are continuously added, the number of the virtual hosts and the data centers is 10% of the existing number, the corresponding virtual switches are added to the SDN controller, the memory usage rate or the CPU usage rate is continuously checked, and network delay and jitter are tested.
Preferably, in step S22, after the virtual host is added, the memory and CPU usage of the SDN controller are recorded after each additional host is output. And comparing the network delay and the jitter.
In a second aspect, the present invention provides a reliability testing apparatus for an SDN controller, including:
building a basic test environment module, creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts and the physical host through a trunk network; adding the virtual host to other data centers managed by the central controller; creating SDN switches with different forwarding modes in each data center; the SDN controller is associated with the data center;
the SDN reliability testing module is used for the SDN controller to establish an SDN network and a router; the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; and outputting the memory and CPU use condition of the SDN controller.
Preferably, in the SDN reliability testing module, when both the memory usage rate and the CPU usage rate are less than 50%, the number of virtual hosts is doubled, the virtual hosts are added to a new data center, an SDN switch is created in the new data center, and an SDN controller is associated with the SDN switch. And checking the memory utilization rate or the CPU utilization rate, and continuously testing the network delay and jitter.
Preferably, in the SDN reliability test module, when one of the memory usage rate or the CPU usage rate is greater than 50%, the memory usage rate and the CPU usage rate information of the SDN controller are recorded, virtual hosts and data centers are continuously added, the number of the virtual hosts and the data centers is 10% of the existing number, corresponding virtual switches are added to the SDN controller, the memory usage rate or the CPU usage rate is continuously checked, and network delay and jitter are tested.
Preferably, in the SDN reliability testing module, after the virtual host is added, the memory and CPU usage of the SDN controller are recorded after each additional host is output. And comparing the network delay and the jitter.
The invention has the advantages that by installing the virtual host, the use of the physical host and the physical switch can be reduced, and the test cost is saved; the deployment of the basic test environment is flexible and efficient, and the networks with different forwarding modes are conveniently built; host resources can be added at any time in the test process, the test scale is increased, and the expandability is good; in addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart of a reliability testing method for an SDN controller provided in the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1, the method for testing the reliability of an SDN controller provided in this embodiment includes the following steps:
s1: the method comprises the following steps of building a basic test environment, specifically comprising the following steps:
s11: creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts with the physical host through a trunk network;
s12: adding the virtual host to other data centers managed by the central controller;
s13: creating SDN switches with different forwarding modes in each data center;
s14: the SDN controller is associated with the data center;
s2: testing the SDN reliability; the method specifically comprises the following steps:
s21: the SDN controller creates an SDN network and a router;
s22: the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; and outputting the memory and CPU use condition of the SDN controller. Comparing the network time delay and the jitter conditions;
when the memory utilization rate and the CPU utilization rate are both less than 50%, the number of the virtual hosts is doubled, the virtual hosts are added to a new data center, an SDN switch is established in the new data center, and an SDN controller is associated. Checking the memory utilization rate or the CPU utilization rate, and continuously testing the network delay and jitter;
when one of the memory utilization rate or the CPU utilization rate is more than 50%, recording the memory utilization rate of the SDN controller and the CPU utilization rate information, continuously adding virtual hosts and data centers, wherein the number of the virtual hosts and the data centers is 10% of the existing number, adding corresponding virtual switches into the SDN controller, continuously checking the memory utilization rate or the CPU utilization rate, and testing network delay and jitter;
and when the virtual host is added, outputting each round of host addition and recording the memory and CPU use condition of the SDN controller. And comparing the network delay and the jitter.
Example 2:
the embodiment provides a reliability testing device of an SDN controller, including:
building a basic test environment module, creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts and the physical host through a trunk network; adding the virtual host to other data centers managed by the central controller; creating SDN switches with different forwarding modes in each data center; the SDN controller is associated with the data center;
the SDN reliability testing module is used for the SDN controller to establish an SDN network and a router; the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; outputting the memory and CPU use condition of the SDN controller;
when the memory utilization rate and the CPU utilization rate are both less than 50%, the number of the virtual hosts is doubled, the virtual hosts are added to a new data center, an SDN switch is established in the new data center, and an SDN controller is associated. Checking the memory utilization rate or the CPU utilization rate, and continuously testing the network delay and jitter;
when one of the memory utilization rate or the CPU utilization rate is more than 50%, recording the memory utilization rate of the SDN controller and the CPU utilization rate information, continuously adding virtual hosts and data centers, wherein the number of the virtual hosts and the data centers is 10% of the existing number, adding corresponding virtual switches into the SDN controller, continuously checking the memory utilization rate or the CPU utilization rate, and testing network delay and jitter;
and when the virtual host is added, outputting each round of host addition and recording the memory and CPU use condition of the SDN controller. And comparing the network delay and the jitter.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. A reliability test method of an SDN controller is characterized by comprising the following steps:
s1: the method comprises the following steps of building a basic test environment, specifically comprising the following steps:
s11: creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts with the physical host through a trunk network;
s12: adding the virtual host to other data centers managed by the central controller;
s13: creating SDN switches with different forwarding modes in each data center;
s14: the SDN controller is associated with the data center;
s2: testing the SDN reliability; the method specifically comprises the following steps:
s21: the SDN controller creates an SDN network and a router;
s22: the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; outputting the memory and CPU use condition of the SDN controller;
in the step S22, when both the memory usage rate and the CPU usage rate are less than 50%, doubling the number of virtual hosts, adding the doubled virtual hosts to a new data center, creating an SDN switch in the new data center, and associating the SDN switch with an SDN controller; when one of the memory utilization rate or the CPU utilization rate is more than 50%, recording the memory utilization rate of the SDN controller and the CPU utilization rate information, continuously adding virtual hosts and data centers, wherein the number of the virtual hosts and the data centers is 10% of the existing number, adding corresponding virtual switches into the SDN controller, continuously checking the memory utilization rate or the CPU utilization rate, and testing network delay and jitter; and when the virtual host is added, outputting each round of host addition and recording the memory and CPU use condition of the SDN controller.
2. A reliability testing device of an SDN controller is characterized by comprising:
building a basic test environment module, creating a plurality of virtual hosts in a physical host A, installing a virtualization management system, adding a virtual network card for the virtual hosts, and communicating the virtual hosts and the physical host through a trunk network; adding the virtual host to other data centers managed by the central controller; creating SDN switches with different forwarding modes in each data center; the SDN controller is associated with the data center;
the SDN reliability testing module is used for the SDN controller to establish an SDN network and a router; the virtual hosts communicate with the router through the SDN network, and network communication pressure between the virtual hosts is tested; checking the memory utilization rate and the CPU utilization rate of the SDN controller; outputting the memory and CPU use condition of the SDN controller;
in the SDN reliability testing module, when the memory utilization rate and the CPU utilization rate are both less than 50%, the number of virtual hosts is doubled, the virtual hosts are added to a new data center, an SDN switch is established in the new data center, and an SDN controller is associated; when one of the memory utilization rate or the CPU utilization rate is more than 50%, recording the memory utilization rate of the SDN controller and the CPU utilization rate information, continuously adding virtual hosts and data centers, wherein the number of the virtual hosts and the data centers is 10% of the existing number, adding corresponding virtual switches into the SDN controller, continuously checking the memory utilization rate or the CPU utilization rate, and testing network delay and jitter; and when the virtual host is added, outputting each round of host addition and recording the memory and CPU use condition of the SDN controller.
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| KR20180058592A (en) * | 2016-11-24 | 2018-06-01 | 쿨클라우드(주) | Software Defined Network Controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140337674A1 (en) * | 2013-05-10 | 2014-11-13 | Nec Laboratories America, Inc. | Network Testing |
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| CN104702522A (en) * | 2013-12-06 | 2015-06-10 | 智梵网络科技有限公司 | Performance-based routing in software-defined network (sdn) |
| CN106130769A (en) * | 2016-06-30 | 2016-11-16 | 上海斐讯数据通信技术有限公司 | A kind of Network Quality Analysis method based on SDN and SDN system |
| CN106302027A (en) * | 2016-08-29 | 2017-01-04 | 北京天地互连信息技术有限公司 | A kind of SDN controller performance tester and method of testing |
| KR20180058592A (en) * | 2016-11-24 | 2018-06-01 | 쿨클라우드(주) | Software Defined Network Controller |
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