CN108683570A - Controller network element managerial ability tests system and method in software definition transmission net - Google Patents
Controller network element managerial ability tests system and method in software definition transmission net Download PDFInfo
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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
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
- H04L43/106—Active monitoring, e.g. heartbeat, ping or trace-route using time related information in packets, e.g. by adding timestamps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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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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Abstract
The invention discloses controller network element managerial abilities in a kind of software definition transmission net to test system and method, it is related to field of communication technology, including Virtual NE generation module, detection module and management module, Virtual NE generation module, which is used to generate, carries out the Virtual NE that the protocol massages of network element up/down line interact with tested controller；Detection module obtains the test data of setting test event for being interacted with the protocol massages of tested controller according to Virtual NE；Management module controls the Virtual NE quantity that Virtual NE generation module generates for test data to be compared with expected result, according to comparison result.The present invention can greatly reduce test equipment resource input, and testing efficiency is high.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to controller network element managerial ability in a kind of software definition transmission net
Controller network element managerial ability test method in test system and a kind of software definition transmission net.
Background technology
With the development of the communication technology, software defined network (Software Defined Network) communicates as information
The most important technique direction in field.Software definition transmission net (Software Defined Transport Network) is to pass
The optical transfer network application software of system defines the idea and method of network, is detached by control function and transmitting function, logically
Centralized control carried out to Internet resources, and by open control interface will it is abstract after transmission net resource be supplied to application layer,
Realize programmability, the intelligent network control of transmission net, flexible, open, elasticity the light transmission of structure service-oriented application
Network architecture.
In software definition transmits planar network architecture, controller major function is that the forwarding of transport plane is controlled by southbound interface
Behavior, and by northbound interface to using planar open network capabilities.Core of the controller as entire framework, controls the overall situation
Internet resources control the forwarding etc. of transport plane, therefore the performance of controller has direct influence to the performance of overall network,
And the NE management ability of controller is to weigh the important indicator of controller performance or even overall network performance.
But when the implementation of existing controller NE management aptitude tests method, there are following difficult point or defects：
(1) laboratory test is limited by place and equipment cost, and actual physical NE quantity is limited, it is difficult to reach controller
The limiting value of managed network element quantity.
(2) software definition transmission net transport plane equipment form is numerous (such as PTN, OTN, IPRAN), industry relevant interface
Consensus standard is also immature, and different transmission net device controller southbound interface agreements are also different, and the NE management of controller is
It is interacted by southbound interface agreement, numerous southbound interface agreements increases the complicated degree of test.
(3) controller network element managerial ability test generally use manual test carries out, before NE quantity meet demand
Put, need repeatedly repeatedly test just can determine that limiting value, not only testing efficiency is relatively low, and can by tester's subjectivity because
The influence of element.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide controlled in a kind of software definition transmission net
Device NE management capacity test system, can greatly reduce test equipment resource input, and testing efficiency is high.
To achieve the above objectives, the technical solution adopted by the present invention is that, including：
Virtual NE generation module, be used to generate with tested controller carry out network element up/down line protocol massages interact
Virtual NE；
Detection module is used to be interacted with the protocol massages of tested controller according to Virtual NE, obtains setting test item
Purpose test data；
Management module is used to test data being compared with expected result, and Virtual NE is controlled according to comparison result
The Virtual NE quantity that generation module generates.
Based on the above technical solution, the test event includes controller CPU usage, controller EMS memory occupation
Between rate, controller management NE quantity, the protocol massages interaction time delay of controller and Virtual NE, controller and Virtual NE
Communication delay and the test event of self-defined addition.
Based on the above technical solution,
The Virtual NE generation module is connected with the southbound interface of tested controller, the detection module and tested control
The northbound interface or management interface of device are connected；
The management module is additionally operable to global parameter, initialization of virtual network element generation module and the detection of setting test environment
Module；
The global parameter of the test environment includes the IP address and protocol type, north orientation of the southbound interface of tested controller
The IP address of interface, the IP address of management interface；
The initialization of virtual network element generation module includes that initialization of virtual network element is initially generated number, Virtual NE up/down
Line step value and network element topology Connecting quantity；
The initialization detection module includes selection test event and default expected result.
Based on the above technical solution, the Virtual NE that the Virtual NE generation module generates is according to the quilt of setting
The protocol type for surveying the southbound interface of controller carries out the protocol massages of network element up/down line with the southbound interface of tested controller
Interaction.
Based on the above technical solution, the management module is specifically used for：
Test data is compared with expected result；
If test data meets expected result, life is continuously increased according to default step value control Virtual NE generation module
At Virtual NE quantity, and obtain new Virtual NE quantity, continue to compare, until test data is undesirably tied
Fruit then stops comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if according to default step value control Virtual NE generation module constantly reduce
Virtual NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then
Stopping is compared, and is recorded Virtual NE quantity at this time, is then outputed test result.
The present invention also provides controller network element managerial ability test methods in a kind of software definition transmission net, including following step
Suddenly：
Generate Virtual NE；
The protocol massages that Virtual NE carries out network element up/down line with tested controller interact；
It is interacted with the protocol massages of tested controller according to Virtual NE, obtains the test data of setting test event；
Test data is compared with expected result, the Virtual NE quantity generated according to comparison result control.
Based on the above technical solution, the test event includes controller CPU usage, controller EMS memory occupation
Between rate, controller management NE quantity, the protocol massages interaction time delay of controller and Virtual NE, controller and Virtual NE
Communication delay and the test event of self-defined addition.
Based on the above technical solution, further comprising the steps of before the generation Virtual NE：
S101：Virtual NE generation module is connected with the southbound interface of tested controller, detection module and tested controller
Northbound interface or management interface be connected, management module is connected with detection module and Virtual NE generation module；
S102：The global parameter of test environment is set, and the global parameter of the test environment includes the south of tested controller
To the IP address and protocol type, the IP address of northbound interface, the IP address of management interface of interface；
S103：Initialization of virtual network element generation module：Initialization of virtual network element is initially generated number, Virtual NE up/down line
Step value and network element topology Connecting quantity；
S104：Initialize detection module：Selected test event, presets expected result.
Based on the above technical solution, the Virtual NE is according to the association of the southbound interface of the tested controller of setting
Type is discussed, the protocol massages that network element up/down line is carried out with the southbound interface of tested controller interact.
Based on the above technical solution, described that test data is compared with expected result, according to comparison result
The Virtual NE quantity generated is controlled, the specific steps are：
Test data is compared with expected result；
If test data meets expected result, life is continuously increased according to default step value control Virtual NE generation module
At Virtual NE quantity, and obtain new Virtual NE quantity, continue to compare, until test data is undesirably tied
Fruit then stops comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if according to default step value control Virtual NE generation module constantly reduce
Virtual NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then
Stopping is compared, and is recorded Virtual NE quantity at this time, is then outputed test result.
Compared with the prior art, the advantages of the present invention are as follows：Protocol massages interaction is carried out using Virtual NE and controller
Achieve the effect that actual physical network element is reached the standard grade, greatly reduce test equipment resource input, dynamic adjusts empty according to demand
Quasi- NE quantity, meets the testing requirement of controller management NE quantity limiting value, and can dynamic select controller south orientation connect
Mouth agreement, meets the testing requirement under distinct interface agreement, and entire test process is automatically performed, and testing efficiency is high.
Description of the drawings
Fig. 1 tests the stream of system for controller network element managerial ability in a kind of software definition transmission net in the embodiment of the present invention
Cheng Tu；
Fig. 2 is a kind of stream of controller network element managerial ability test method in software definition transmission net in the embodiment of the present invention
Cheng Tu；
Fig. 3 is the flow chart that test data is compared with expected result in the embodiment of the present invention 6.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and embodiments.Those skilled in the art Ying Ming
In vain, the embodiment of the present invention can be provided as method, system or computer program product.Therefore, complete hardware can be used in the present invention
The form of embodiment, complete software embodiment or embodiment combining software and hardware aspects.Moreover, the present invention can be used
One or more wherein includes that the computer-usable storage medium of computer usable program code (includes but not limited to that disk is deposited
Reservoir, CD-ROM, optical memory etc.) on the form of computer program product implemented.
Embodiment 1
Shown in Figure 1, controller network element managerial ability is surveyed in a kind of software definition transmission net of offer of the embodiment of the present invention
Test system carries out protocol massages by Virtual NE and controller and interact offline on actual physical network element to simulate, and setting is commented
Estimate every testing conditions of controller network element managerial ability, and then the NE management ability of controller is tested automatically.This
Controller network element managerial ability test system includes Virtual NE generation module, inspection in the software definition transmission net of inventive embodiments
Survey module and management module.Virtual NE generation module is connected with the southbound interface of tested controller, detection module with by observing and controlling
The northbound interface or management interface of device processed are connected, and detection module and Virtual NE generation module are connected with management module.
Virtual NE generation module, which is used to generate, carries out the void that the protocol massages of network element up/down line interact with tested controller
Quasi- network element.Specifically, the Virtual NE that generates of Virtual NE generation module with the controller southbound interface agreement that selects with it is tested
The southbound interface of controller carries out the protocol massages interaction of network element up/down line.Controller southbound interface agreement include OpenFlow,
OF-CONFIG, NETCONF, OVSDB, BGP, PCEP and producer's proprietary protocol.OpenFlow agreements are mainly by inhomogeneity
Type message is handled to realize the route test between controller and network element.OF-CONFIG(OpenFlow Configuration
And Management Protocol) essence be to provide an open interface, be mainly used for control OpenFlow network elements and
Remote configuration.NETCONF is a completely new network configuration protocol based on XML.In the embodiment of the present invention, first to controller
Southbound interface agreement is selected, and the southbound interface agreement of selection is then based on, and the south orientation of Virtual NE and tested controller connects
Mouth carries out the protocol massages interaction of network element up/down line.If the Virtual NE generated is multiple, multiple Virtual NE with it is tested
Protocol massages interaction is carried out between controller.
The protocol massages interactive process that network element up/down line is carried out for Virtual NE and tested controller, with the control of selection
Device southbound interface agreement processed illustrates for being OpenFlow, and process is as follows：
A：Pass through TCP (Transmission Control Protocol, transmission between Virtual NE and tested controller
Control protocol) three-way handshake process foundation connection, the TCP port number used is 6633.
B：After TCP connection is established, hello packet is sent mutually between Virtual NE and tested controller.Hello packet is to make
With a symmetrical data packet of OpenFlow agreements, unique content is " class in OpenFlow headings in hello packet
Offset=0 ".
C：When hello packet is after Virtual NE and tested controller are exchanged with each other, be tested controller and Virtual NE it
Between just establish connection.
D：Tested controller sends Feature Request message to Virtual NE, and acquisition request Virtual NE parameter should
OpenFlow data heads " types value=5 " in Feature Request message, Virtual NE reply Feature Reply messages
Message.
E：In the Keep Alive connection holding stages, Virtual NE and tested controller send mutually Echo Request and
Echo Reply messages, it is generally the case that Echo Request use OpenFlow data heads " types value=2 ", Echo
Reply uses OpenFlow data heads " types value=3 ".
Detection module obtains setting test event for being interacted with the protocol massages of tested controller according to Virtual NE
Test data pre-sets delay after interacting a period of time between Virtual NE and tested controller according to Virtual NE quantity,
Detection module obtains test data result.Test event include controller CPU usage, controller memory usage,
It is logical between the protocol massages interaction time delay of controller management NE quantity, controller and Virtual NE, controller and Virtual NE
The test event for believing time delay and self-defined addition, when being tested as needed, select one kind in above-mentioned test event or
It is a variety of to be tested.Tested controller CPU usage and memory usage can log in tested controller server OS, pass through
Order line or script obtain (such as linux system can be obtained by top orders)；Tested controller management NE quantity can be with
Querying command is issued by management interface to tested controller or northbound interface to obtain；The agreement report of controller and Virtual NE
Literary interaction time delay can call network packet capturing analysis tool (such as Wireshark) in tested controller southbound interface and Virtual NE
Junction packet capturing is calculated by the timestamp that special packet interacts；Communication delay between controller and Virtual NE can pass through
Ping orders obtain.
Management module controls Virtual NE for test data to be compared with expected result, according to comparison result and generates
The Virtual NE quantity that module generates, that is, increase or decrease Virtual NE quantity.
Controller network element managerial ability tests system in the software definition transmission net of the embodiment of the present invention, using Virtual NE
It is interacted with controller progress protocol massages to achieve the effect that actual physical network element is reached the standard grade, greatly reduces test equipment resource
Input, dynamic adjustment Virtual NE quantity, meets the testing requirement of controller management NE quantity limiting value, and energy according to demand
Enough dynamic select controller southbound interface agreements, meet the testing requirement under distinct interface agreement, entire test process is automatically complete
At testing efficiency is high.
Embodiment 2
On the basis of embodiment 1, Virtual NE generation module is connected with the southbound interface of tested controller, the detection
Module is connected with the northbound interface of tested controller or management interface.
The global parameter of test environment includes the IP address and protocol type, northbound interface of the southbound interface of tested controller
IP address, the IP address of management interface, i.e., test environment global parameter setting include Virtual NE generation module and detection
The IP address setting and the selection of controller southbound interface protocol type of module and tested controller connecting interface, virtual net
First generation module is connected with the southbound interface of tested controller, the northbound interface or management interface of detection module and tested controller
It is connected；
Initialization of virtual network element generation module includes that initialization of virtual network element is initially generated number, Virtual NE up/down line step
Into value and network element topology Connecting quantity, i.e. the Initialize installation of Virtual NE generation module include Virtual NE be initially generated number,
Virtual NE up/down line step value and network element topology Connecting quantity；
It includes selection test event and default expected result to initialize detection module.By test data and expected result into
When row compares, according to the test event of selection, detect whether the CPU of server and EMS memory occupation situation where being tested controller reach
To predetermined threshold value thresholding, whether the practical NE quantity for finding management of controller and the Virtual NE quantity that this is simulated are consistent,
Whether the time delay or communication delay that tested controller is interacted with the protocol massages of Virtual NE are more than predetermined threshold value thresholding, Yi Jiqi
Whether his user-defined testing conditions are up to standard, i.e., are assessed by observing and controlling according to the contrast judgement of test data and expected result
The NE management ability of device processed.
Controller network element managerial ability tests system in the software definition transmission net of the embodiment of the present invention, can test
When, can selection setting dynamically be carried out to controller southbound interface agreement, test event etc., flexibility ratio is high.
Embodiment 3
On the basis of embodiment 2, management module is specifically used for：
Test data is compared with expected result；
If test data meets expected result, life is continuously increased according to default step value control Virtual NE generation module
At Virtual NE quantity, and obtain new Virtual NE quantity, continue to compare, until test data is undesirably tied
Fruit then stops comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if according to default step value control Virtual NE generation module constantly reduce
Virtual NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then
Stopping is compared, and is recorded Virtual NE quantity at this time, is then outputed test result.
That is initialization of virtual network element is initially generated number, presets the Virtual NE quantity of primary simulation, the survey that then will be measured
Examination data and expected result are compared, and the increase and decrease of Virtual NE is determined with this, one is finally measured and meets expected result
Maximum Virtual NE numerical value finds out the maximum NE No. that controller normally can be managed effectively.
Further, in the test of other test events, the judgement of expected result whether is met for test data, such as
Device CPU usage, the then CPU usage for being tested controller place server are less than predetermined threshold value to the test event of selection in order to control
When, test data meets expected result；Such as the test event device memory usage in order to control of selection, then clothes where controller are tested
When the memory usage of business device is less than predetermined threshold value, test data meets expected result；Such as the NE No. of selection control management
Amount, then when the NE quantity of tested controller report is consistent with the Virtual NE quantity that Virtual NE generation module is simulated, test
Data fit expected result；Such as the protocol massages interaction time delay of the test event device and Virtual NE in order to control of selection, then it is controlled
When the protocol massages interaction time delay of device and Virtual NE processed is less than predetermined threshold value, test data meets expected result；Such as selection
The communication delay between device and Virtual NE, the then communication delay being tested between controller and Virtual NE are less than test event in order to control
When predetermined threshold value, test data meets expected result.
Controller network element managerial ability tests system in the software definition transmission net of the embodiment of the present invention, by that will test number
It is compared according to expected result, then dynamically to adjust the generation quantity of Virtual NE according to default step value, finally obtains
It must be tested the limiting value of controller network element managerial ability, test result is more accurate.
Embodiment 4
Shown in Figure 2, the embodiment of the present invention provides a kind of software definition transmission net using system described in embodiment 1
Middle controller network element managerial ability test method, includes the following steps：
S1：Generate Virtual NE；
S2：The protocol massages that Virtual NE carries out network element up/down line with tested controller interact.Virtual NE is with selected
The protocol massages that controller southbound interface agreement carries out network element up/down line with the southbound interface of tested controller interact.
S3：It is interacted with the protocol massages of tested controller according to Virtual NE, obtains the test data of setting test event.
Test event include controller CPU usage, controller memory usage, controller management NE quantity, controller with it is virtual
The test event of communication delay and self-defined addition between the protocol massages interaction time delay of network element, controller and Virtual NE.
S4：Test data is compared with expected result, the Virtual NE quantity generated according to comparison result control.
Controller network element managerial ability test method in the software definition transmission net of the embodiment of the present invention, using Virtual NE
It is interacted with controller progress protocol massages to achieve the effect that actual physical network element is reached the standard grade, greatly reduces test equipment resource
Input, dynamic adjustment Virtual NE quantity, meets the testing requirement of controller management NE quantity limiting value, and energy according to demand
Enough dynamic select controller southbound interface agreements, meet the testing requirement under distinct interface agreement, entire test process is automatically complete
At testing efficiency is high.
Embodiment 5
It is further comprising the steps of before generating Virtual NE on the basis of embodiment 4：
S101：Virtual NE generation module is connected with the southbound interface of tested controller, detection module and tested controller
Northbound interface or management interface be connected, management module is connected with detection module and Virtual NE generation module；
S102：The global parameter of test environment is set, and the global parameter of the test environment includes the south of tested controller
To the IP address and protocol type, the IP address of northbound interface, the IP address of management interface of interface；
S103：Initialization of virtual network element generation module：Initialization of virtual network element is initially generated number, Virtual NE up/down line
Step value and network element topology Connecting quantity；
S104：Initialize detection module：Selected test event, presets expected result.
In test, can selection setting dynamically be carried out to controller southbound interface agreement, test event etc., according to test
Preparation setting when being tested, flexibility ratio are high.
Embodiment 6
On the basis of embodiment 4, test data is compared with expected result, is increased or decreased according to comparison result
The Virtual NE quantity of generation, the specific steps are：
Test data is compared with expected result；
If test data meets expected result, life is continuously increased according to default step value control Virtual NE generation module
At Virtual NE quantity, and obtain new Virtual NE quantity, continue to compare, until test data is undesirably tied
Fruit then stops comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if according to default step value control Virtual NE generation module constantly reduce
Virtual NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then
Stopping is compared, and is recorded Virtual NE quantity at this time, is then outputed test result.The ability of controller management network element is carried out
When test, expected result indicates that controller can be normally carried out NE management, and test data reflection is tested the real-time network element of controller
Managerial ability situation, it is shown in Figure 3：
S401：Test data is compared with expected result, judges whether test data meets expected result, if so,
Go to S402；If it is not, then going to S405；Test data meets expected result and indicates that currently tested controller can be normally carried out currently
The management of all Virtual NE, undesirably result indicates that currently tested controller cannot be normally carried out current institute to test data
There is the management of Virtual NE.
S402：Increase Virtual NE quantity according to default step value, then obtains test data again, go to S403：
S403：Judge whether test data meets expected result, if so, going to S402；If it is not, then going to S404；
S404：The last test data of record meets Virtual NE quantity when expected result, then goes to S408；
S405：Virtual NE quantity is reduced according to default step value, test data is then obtained again, goes to S406；
S406：Judge whether test data meets expected result, if it is not, going to S405；If so, going to S407；
S407：Current virtual NE quantity is recorded, S408 is then gone to；
S408：Output test result.Test result file can be doc formats, xls formats, txt formats, pdf formats,
The file formats such as html formats.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. controller network element managerial ability tests system in a kind of software definition transmission net, which is characterized in that including：
Virtual NE generation module is used to generate the void interacted with the protocol massages of tested controller progress network element up/down line
Quasi- network element；
Detection module is used to be interacted with the protocol massages of tested controller according to Virtual NE, obtains setting test event
Test data；
Management module is used to test data being compared with expected result, and controlling Virtual NE according to comparison result generates
The Virtual NE quantity that module generates.
2. controller network element managerial ability tests system, feature in a kind of software definition transmission net as described in claim 1
It is：The test event includes controller CPU usage, controller memory usage, controller management NE quantity, control
The survey of communication delay and self-defined addition between the protocol massages interaction time delay of device and Virtual NE, controller and Virtual NE
Examination project.
3. controller network element managerial ability tests system, feature in a kind of software definition transmission net as claimed in claim 2
It is：
The Virtual NE generation module is connected with the southbound interface of tested controller, the detection module and tested controller
Northbound interface or management interface are connected；
The management module is additionally operable to global parameter, initialization of virtual network element generation module and the detection mould of setting test environment
Block；
The global parameter of the test environment includes the IP address and protocol type, northbound interface of the southbound interface of tested controller
IP address, the IP address of management interface；
The initialization of virtual network element generation module includes that initialization of virtual network element is initially generated number, Virtual NE up/down line step
Into value and network element topology Connecting quantity；
The initialization detection module includes selection test event and default expected result.
4. controller network element managerial ability tests system, feature in a kind of software definition transmission net as claimed in claim 3
It is：The Virtual NE that the Virtual NE generation module generates is according to the protocol class of the southbound interface of the tested controller of setting
Type, the protocol massages that network element up/down line is carried out with the southbound interface of tested controller interact.
5. controller network element managerial ability tests system, feature in a kind of software definition transmission net as claimed in claim 3
It is, the management module is specifically used for：
Test data is compared with expected result；
If test data meets expected result, generation is continuously increased according to default step value control Virtual NE generation module
Virtual NE quantity, and obtain new Virtual NE quantity, continues to compare, until test data undesirably as a result,
Then stop comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if constantly reduce according to default step value control Virtual NE generation module it is virtual
NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then stop
Compare, records Virtual NE quantity at this time, then output test result.
6. controller network element managerial ability test method in a kind of software definition transmission net using system described in claim 1,
It is characterized by comprising the following steps：
Generate Virtual NE；
The protocol massages that Virtual NE carries out network element up/down line with tested controller interact；
It is interacted with the protocol massages of tested controller according to Virtual NE, obtains the test data of setting test event；
Test data is compared with expected result, the Virtual NE quantity generated according to comparison result control.
7. controller network element managerial ability test method in a kind of software definition transmission net as claimed in claim 6, feature
It is：The test event includes controller CPU usage, controller memory usage, controller management NE quantity, control
The survey of communication delay and self-defined addition between the protocol massages interaction time delay of device and Virtual NE, controller and Virtual NE
Examination project.
8. controller network element managerial ability test method in a kind of software definition transmission net as claimed in claim 7, feature
It is：It is further comprising the steps of before the generation Virtual NE：
S101：Virtual NE generation module is connected with the southbound interface of tested controller, the north of detection module and tested controller
It is connected to interface or management interface, management module is connected with detection module and Virtual NE generation module；
S102：The global parameter of test environment is set, and the global parameter of the test environment includes that the south orientation of tested controller connects
The IP address and protocol type, the IP address of northbound interface, the IP address of management interface of mouth；
S103：Initialization of virtual network element generation module：Initialization of virtual network element is initially generated number, Virtual NE up/down line stepping
Value and network element topology Connecting quantity；
S104：Initialize detection module：Selected test event, presets expected result.
9. controller network element managerial ability test method in a kind of software definition transmission net as claimed in claim 8, feature
It is：The Virtual NE is according to the protocol type of the southbound interface of the tested controller of setting, the south orientation with tested controller
Interface carries out the protocol massages interaction of network element up/down line.
10. controller network element managerial ability test method in a kind of software definition transmission net as claimed in claim 8, feature
It is：It is described that test data is compared with expected result, according to the Virtual NE quantity that comparison result control generates, specifically
Step is：
Test data is compared with expected result；
If test data meets expected result, generation is continuously increased according to default step value control Virtual NE generation module
Virtual NE quantity, and obtain new Virtual NE quantity, continues to compare, until test data undesirably as a result,
Then stop comparing, records the last Virtual NE quantity obtained, then output test result；
If test data undesirably as a result, if constantly reduce according to default step value control Virtual NE generation module it is virtual
NE quantity, and new Virtual NE quantity is obtained, continue to compare, until test data meets expected result, then stop
Compare, records Virtual NE quantity at this time, then output test result.
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