CN115396336A - MPLS VPN (Multi-protocol Label switching virtual private network) passenger gathering special line active test method based on software simulation - Google Patents
MPLS VPN (Multi-protocol Label switching virtual private network) passenger gathering special line active test method based on software simulation Download PDFInfo
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- 238000010998 test method Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 130
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000013507 mapping Methods 0.000 claims abstract description 6
- 230000000977 initiatory effect Effects 0.000 claims abstract description 5
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000004141 dimensional analysis Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000004891 communication Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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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
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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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
- H04L43/14—Arrangements for monitoring or testing data switching networks using software, i.e. software packages
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
Abstract
The invention provides an MPLSVPN customer-collecting special line active test method based on software simulation, which comprises the following steps of establishing the relation between customer-collecting MPLSVPN and a test center, and comprises the following steps: deploying a central test server in a test center, accessing a plurality of VLANs to a convergence switch through IP, allocating different VLANIDs to different customer-collecting MPLSVPNs, and establishing a mapping relation between the VLANIDs and the VLANIDs; configuring test parameters in a test center; automatically scheduling and executing a test task, including generating a test task example, executing the test task example, including embedding a VLAN tag through QinQ, accessing a specified customer-collecting MPLSVPN, initiating a PING test to a target node, and actively detecting the network quality of each node in the VPN; and presenting, analyzing and storing the data generated by the execution test. The invention has mass testing capability, does not depend on digital equipment, adopts an independent universal server, realizes automatic polling and opening test for the client specific MPLSVPN line user by a software simulation nested VLAN method, has mass testing capability and multi-dimensional real-time monitoring.
Description
Technical Field
The invention relates to the technical field of private line active testing, in particular to an MPLS VPN passenger-collecting private line active testing method based on software simulation.
Background
MPLS VPN is an IP private network which is exclusively used for enterprises and is constructed on an operator broadband IP network by using MPLS technology, so that multi-service communication of data, voice and images, which is not limited by regions, high in safety, high in speed and reliable, is realized; on one hand, the reliability and the high efficiency of a public network can be utilized, and the advantages of safety and stability of an internal network can be ensured, so that more and more enterprise customers select MPLS VPN;
for the quality monitoring of the private network of MPLS VPN of the group customer, a communication operator realizes the quality monitoring through a network management means, namely, the management information output by the digital communication equipment is collected; thus, the quality of the private network is reflected through the equipment alarm; when quality verification is needed under the conditions of user complaints, engineering cutover, network data adjustment and the like, performing MPLS VPN connectivity PING test by remotely controlling the digital communication equipment through the network management system;
the quality monitoring of the MPLS VPN by using the data communication equipment network management system has the following defects:
the first failure is to monitor in real time at client granularity, and cannot discover network quality degradation prior to the user:
the network management system periodically collects the hardware state (such as CPU utilization rate, memory utilization rate, interface utilization rate and the like) of the digital communication equipment and information such as overall quality indexes and the like, reflects the running condition of the equipment, cannot monitor the service quality by using the dimensionality of a client and an IP (Internet protocol), cannot identify in real time when a hidden fault occurs, and can only discover through complaints of users.
The second test capability is weak:
although the data communication equipment has the capability of connectivity test, the number of test targets is limited due to the limitation of processing resources, and the test for the IP of more than ten thousand client targets cannot be realized.
In a word, the existing MPLS VPN management lacks an effective real-time monitoring means, cannot sense and early warn VPN degradation events in time, cannot find faults in time, and causes risks of user complaints and poor service experience due to user service blockage.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an MPLS VPN passenger-collecting private line active testing method based on software simulation, which can solve the problems that the existing MPLS VPN management lacks an effective real-time monitoring means, can not sense and early warn VPN degradation events in time, can not find and solve faults in time, and causes user complaints and poor service experience due to user service blockage.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention is realized by the following technical scheme: a MPLS VPN private line collection active test method based on software simulation comprises the following steps:
establishing a relationship between the customer-collecting MPLS VPN and the test center, comprising the following steps:
deploying a central test server in a test center, accessing a plurality of VLANs to a convergence switch through IP, allocating different VLAN IDs to different customer-collecting MPLS VPNs, and establishing a mapping relation between the VLAN IDs and the different customer-collecting MPLS VPNs;
configuring test parameters in the test center;
automatically scheduling and executing test tasks, comprising:
generating a test task instance according to the prepared test parameters,
executing a test task example, wherein the test task example comprises accessing a designated customer-collecting MPLS VPN through QinQ nested VLAN labels, initiating a PING test on a target node, and actively detecting the network quality of each node in the VPN;
and presenting, analyzing and storing the data generated by the execution test.
Further, configuring test parameters in the test center; the method comprises the following steps:
and configuring test execution strategy parameters and test object parameters.
Further, the test execution strategy parameters include a test time start time, a test time end time, an execution mode and an execution interval period; the execution modes comprise immediate execution, timing execution and periodic execution.
Further, the test object parameters include a VLAN ID and a client device IP address.
Further, the QinQ nested VLAN tag includes encapsulating the user inner network VLAN tag in an outer VLAN tag, so that the packet traverses the network with two layers of VLAN tags, and the inner VLAN tag is shielded in the outer layer only according to the outer VLAN tag propagation.
Further, the accessing the designated guest-collecting MPLS VPN includes accessing the designated guest-collecting MPLS VPN through a metropolitan area network device.
Further, the data generated by executing the test includes test time, test object, time delay, packet loss rate, and jitter.
Further, the presenting the data generated by executing the test includes presenting the data generated by executing the test in a graphical manner; and carrying out convergence analysis display according to the test source address or the destination address, and presenting the multi-level dimension analysis results of the test source address and the destination address support city, the customer collecting user and the node IP address.
Compared with the prior art, the invention has the beneficial effects that:
the active test method for the special line of the MPLS VPN has mass test capability, does not depend on digital equipment, adopts an independent general server, realizes the automatic routing inspection and opening test of the special line user of the MPLS VPN through a software simulation nested VLAN method, has mass test capability, can realize multi-dimensional real-time monitoring, can automatically test the dimensionalities of customers, node IP addresses and the like, monitors the change of service quality in real time, and meets the monitoring requirement of the MPLS VPN.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which like reference numerals are used to indicate like parts. Wherein:
FIG. 1 is a schematic flow chart of an MPLS VPN private line collection active test method based on software simulation according to the present invention;
FIG. 2 is a schematic flow chart of the principle of the testing method of the present invention;
FIG. 3 is a schematic nesting diagram of the QinQ nested tag of the present invention;
FIG. 4 is a schematic diagram of a frame structure of the active test system according to the present invention.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.
An active test method for a private line of an MPLS VPN collective customer based on software simulation is disclosed, as shown in fig. 1, and the test method includes the following steps:
the method comprises the following steps: establishing a relation between the customer-collecting MPLS VPN and a test center; the method comprises the following steps:
deploying a central test server in a test center, accessing a plurality of VLANs to a convergence switch through IP, allocating different VLAN IDs to different customer-collecting MPLS VPNs, and establishing a mapping relation between the VLAN IDs and the different customer-collecting MPLS VPNs;
illustratively, test software is deployed on a universal X86 server of a test center and is accessed to a telecom operator network in an IP mode, because different VLAN (virtual local area network) customer collecting node devices are oriented to serve as test objects, in order to improve the resource utilization efficiency, a plurality of VLANs are accessed to a convergence switch, each VLAN ID corresponds to one MPLS VPN, and therefore customer collecting side nodes are tested through a metropolitan area network;
step two: configuring test parameters in the test center; the method comprises the following steps:
and configuring test execution strategy parameters and test object parameters.
Specifically, the test execution policy parameters include a test time start time, a test time end time, an execution mode, and an execution interval period; the execution modes comprise immediate execution, timing execution and periodic execution.
The test object parameters comprise VLAN ID and client equipment IP address.
Step three: automatically scheduling and executing a test task;
3.1, generating a test task instance according to the prepared test parameters;
specifically, determining a test execution strategy parameter, an execution mode and a test object parameter, and generating a test task instance;
in order to improve the use convenience, the system can be automatically interfaced with a telecommunication operator comprehensive resource system, the collecting information is synchronized, the collecting name is mapped to correspond to the MPLS VPN (VLAN ID), and one collecting possibly corresponds to a plurality of MPLS VPNs.
The test relates to a plurality of IP addresses, the number is large, the efficiency of customizing each test task one by one manually is low, the system supports a batch import function, a plurality of test tasks are stored as templates and are called at any time, and the batch test tasks are imported through excel forms.
3.2, executing a test task example, wherein the test task example comprises the steps of accessing the appointed visitor-collecting MPLS VPN through QinQ nested VLAN labels, initiating a PING test on a target node, and actively detecting the network quality of each node in the VPN;
the access of the appointed customer-collecting MPLS VPN comprises the access of the appointed customer-collecting MPLS VPN through metropolitan area network equipment;
specifically, when the test task instance is executed, the ICMP data is encapsulated using QinQ technology, as shown in fig. 3, to support target tests of different MPLS VLAN guest users. The VLAN labels of the inner layer network of the users are packaged in the VLAN labels of the outer layer, so that the messages pass through the network with the two layers of VLAN labels, the VLAN labels of the inner layer are only transmitted in the outer layer according to the VLAN labels of the outer layer, and the VLAN labels of the inner layer are shielded, therefore, the data streams are distinguished, and different user VLAN labels can be reused as the VLAN labels of the inner layer are transmitted transparently, only the VLAN labels of the outer layer are required to be unique on the outer layer, and different VLAN IDs are distributed to different customers.
Step four: and presenting, analyzing and storing the data generated by the execution test.
Specifically, when the execution of the test task instance is finished, a test record is generated, where the test record includes information such as test time, test object, time delay, packet loss rate, jitter, and the like, and the test record is stored in data.
And analyzing data based on the test record, wherein the analysis dimension can comprise a customer collector, MPLS VPN or VLAN ID and a customer collector device IP, and the analysis service index comprises time delay, packet loss rate, jitter and the like.
And presenting a test result of the customer-collecting MPLS VPN in a graphical mode, wherein the test result supports convergence analysis and display according to a test source address or a target address, and the test source address and the target address support the presentation of multi-level dimension analysis results of a city, a customer-collecting user and a node IP address.
As shown in fig. 2, it is assumed that there are multiple customers, each customer corresponding to multiple MPLS VPNs, which includes, exemplarily, MPLS VPN1, MPLS VPN2 … … MPLS VPNn; each customer-collecting MPLS VPN corresponds to a plurality of customer devices, namely nodes needing to be tested, and different VLAN IDs (virtual local area network) are distributed to different customer-collecting MPLS VPNs, such as VLAN1, VLAN2 and VLAN3 … … VLANn; a plurality of VLANs are accessed into a convergence switch through IP, and a mapping relation is determined between VLAN ID-guest-collecting MPLS VPN; the aggregation switches are connected to different guest-collecting MPLS VPNs through local area network devices.
When the test task is issued, the test task is issued through a test service area distributed by a test center, illustratively, the test task is issued through a VLAN1, and a convergence switch is accessed to a designated guest-collecting MPLS VPN1 through a local area network device; and initiating a PING test to the target node, and actively detecting the network quality of each node in the VPN.
The system architecture of the invention as shown in fig. 4 adopts layered modularization and consists of a simulation layer, a processing layer and an application layer.
The application layer realizes the management of the configuration, the alarm and the like of the multi-customer MPLS VPN, the monitoring and the early warning of the service quality, the fault analysis and the positioning and the output of the alarm information of the network management;
the processing layer completes service functions such as test scheduling, application scene logic test mapping, comprehensive system interface docking, multi-level data association tracking, dial testing capability output and the like;
the simulation layer completes the simulation reconstruction of the nested VLAN and the application protocol flow.
The implementation case is as follows:
the method is deployed in a certain province mobile company, quality monitoring is carried out on node targets of 500+ passenger-collecting MPLS VPN users and 5000+ IP addresses of the whole province in 7 x 24 hours, 720 ten thousand + times of daily routine tests are carried out, the inspection time of a passenger-collecting MPLS VPN network element is shortened from 2 hours to 10 minutes, the inspection efficiency is improved by 91%, fault hidden dangers are found for more than 20 times, and the normal use of a passenger-collecting special line is guaranteed.
The invention has the following advantages:
the mass testing capability is realized by adopting an independent general server and a software simulation nested VLAN method without depending on general equipment, the automatic routing inspection and opening test of the private line user of the multi-protocol label switching virtual private network (MPLS VPN) is realized, the mass testing capability is realized, at least 1 ten thousand IP addresses of the MPLS VPN clients are tested in a traversing mode every 2 minutes, and the smooth expansion of the testing capability can be carried out by connecting a plurality of VLANs, collecting the clients and the like.
The multi-dimensional real-time monitoring can automatically test the dimensionalities of clients, node IP addresses and the like, monitor the change of the service quality in real time and meet the monitoring requirement of the MPLS VPN.
And presenting the test result of the customer-collecting MPLS VPN in a digital and graphical mode, wherein the test result supports the convergence analysis and display according to a test source address or a target address, and the test source address and the target address support the presentation of the multi-level dimension analysis result of the local city, the customer-collecting user and the node IP address. The system is in butt joint with a telecom operator comprehensive resource system, automatically acquires the passenger collecting information, and provides automatic tests for scenes such as service opening, daily monitoring and the like.
The method comprises the steps of test task self-defining and batch import, wherein the test relates to a plurality of IP addresses, the number is large, the efficiency of customizing each test task one by one manually is low, the system supports a batch import function, a plurality of test tasks are stored as templates to be called at any time, the batch test tasks are imported through excel tables, and the execution modes of the tasks comprise immediate execution, timing execution and periodic execution. The system is in butt joint with a telecom operator comprehensive resource system, automatically acquires the passenger collecting information, and provides automatic tests for scenes such as service opening, daily monitoring and the like.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (8)
1. A MPLS VPN passenger-collecting special line active test method based on software simulation is characterized in that: comprises that
Establishing a relationship between the customer-collecting MPLS VPN and the test center, comprising the following steps:
deploying a central test server in a test center, accessing a plurality of VLANs to a convergence switch through IP, allocating different VLAN IDs to different customer-collecting MPLS VPNs, and establishing a mapping relation between the VLAN IDs and the different customer-collecting MPLS VPNs;
configuring test parameters in the test center;
automatically scheduling and executing test tasks, comprising:
generating a test task instance according to the equipped test parameters,
executing a test task example, wherein the test task example comprises accessing a designated customer-collecting MPLS VPN through QinQ nested VLAN labels, initiating a PING test on a target node, and actively detecting the network quality of each node in the VPN;
and presenting, analyzing and storing the data generated by the execution test.
2. The active test method for the MPLS VPN private line collection based on software simulation as claimed in claim 1, wherein: configuring test parameters in the test center; the method comprises the following steps: and configuring test execution strategy parameters and test object parameters.
3. The active test method for the private line of the MPLS VPN collection based on software simulation as claimed in claim 2, wherein: the test execution strategy parameters comprise test time starting time, test time ending time, an execution mode and an execution interval period; the execution modes comprise immediate execution, timing execution and periodic execution.
4. The active test method for the MPLS VPN private line collection based on software simulation as claimed in claim 2, wherein: the test object parameters comprise VLAN ID and equipment IP address.
5. The active test method for the private line of the MPLS VPN collection based on software simulation as claimed in any one of claims 1-4, wherein: the QinQ nested VLAN tag comprises the steps that a user inner layer network VLAN tag is packaged in an outer layer VLAN tag, so that a message passes through a network with the two layers of VLAN tags, the message is transmitted in the outer layer only according to the outer layer VLAN tag, and the inner layer VLAN tag is shielded.
6. The active test method for the MPLS VPN private line based on software simulation as claimed in any one of claims 1-4, wherein: the accessing the designated guest-collecting MPLS VPN comprises accessing the designated guest-collecting MPLS VPN through a metropolitan area network device.
7. The active test method for the MPLS VPN private line based on software simulation as claimed in any one of claims 1-4, wherein: the data generated by executing the test comprises test time, a test object, time delay, packet loss rate and jitter.
8. The active test method for the MPLS VPN private line based on software simulation as claimed in any one of claims 1-4, wherein: the presenting the data generated by the execution test comprises presenting the data generated by the execution test in a graphical mode; and carrying out convergence analysis display according to the test source address or the destination address, and presenting the multi-level dimensional analysis results of the test source address and the destination address support city, the customer collecting user and the node IP address.
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