CN107749807A - A kind of network function verification method and checking system towards NFV - Google Patents
A kind of network function verification method and checking system towards NFV Download PDFInfo
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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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
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
- H04L41/5051—Service on demand, e.g. definition and deployment of services in real time
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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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Abstract
The present invention discloses a kind of network function verification method towards NFV and checking system, the checking system that the verification method is formed based on user's loader and network function validator, specifically include step 1, obtain user network business demand, determine the resource requirement classification of Network instantiation；Step 2, NFV business demands, the logical topology model that generation is adapted with Network practice are virtualized according to network function；Step 3, according to logical topology model, analyze resource requirement, the instantiation process of execution logic topology, the mapping relations established between logical topology and resource；Step 4, according to user's NFV business demands, calculate the parameter of Business Stream, the generation mode of configuration service stream, corresponding service test script issued to the resource instantiated；Step 5, operational trials script is performed to the resource instantiated.This method can instantiate network verification environment according to the Network demand of different user, and be supported the test and analysis of Business Stream automatically.
Description
Technical field
The present invention relates to network buffer system technical field, specially a kind of network function verification method towards NFV and
Checking system.
Background technology
With the development of general purpose hardware and virtualization technology, increasing software processing function is empty by network function
Planization (Network Function Virtualization, NFV) carries.During e-learning quality, NFV realizes soft
Hardware decouples and function modeling.NFV supports the flexible renewal of resource and the quick exploitation and deployment of new business, and supports to be based on industry
Business demand carries out automatic deployment, elastic telescopic, Fault Isolation and self-healing etc..NFV needs to be adapted to diversified Network
(Network Service, NS) function, but due to the influence of many factors, it result in during current NFV deployment and occur
The problem of many.Current NFV standards move ahead still in multilateral Game, and there is huge simultaneous between validation test and formal deployment
Hold risk.When being integrated using cross-layer, existing O＆M model can not quickly confirm responsible party.Different service-user concerns
Different aspects.Such as carrier network carrying actual flow and data, it more pays close attention to routing forwarding ability, and BAT is then concerned about
The performance of server.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of network function verification method and system towards NFV, energy
It is enough that network verification environment is instantiated according to the Network demand of different user, and be supported the test of Business Stream automatically and divide
Analysis.
In a first aspect, a kind of network function verification method towards NFV provided by the invention, comprises the following steps：
Step 1, user network business demand is obtained, determine the resource requirement classification of Network instantiation；
Described resource mainly includes three kinds of classifications：Network transmission class resource, data processing class resource, operational trials class money
Source；
Described network transmission class resource refers to the physical resource or virtual resource for realizing network connection and routing forwarding service,
Such as virtual switch, virtual router etc.；
Described data processing class resource refers to run the physical resource of the service of I/O intensive type or computation-intensive service
Or virtual resource, such as perform the fictitious host computer of NAT services, the fictitious host computer for performing firewall applications etc.；
Described operational trials class resource refers to the physical resource or virtual resource for aiding in carrying out NFV operational trialss, example
Such as produce the fictitious host computer of test network flow；
Step 2, according to NFV business demands, generate the logical topology model of adaptation；
Step 3, the logical topology model according to adaptation, resource requirement is analyzed, the instantiation process of execution logic topology, is built
Vertical mapping relations between logical topology and resource；
Step 4, according to user's NFV business demands, calculate the parameter of Business Stream, the generation mode of configuration service stream, to
The resource of instantiation issues corresponding service test script；
Described operational trials script include but is not limited to set network traffics forward-paths, set network traffics type,
Network traffics are set to produce speed, the test starting time is set, test time etc. is set.
Step 5, the resource instantiated perform operational trials script.
Second aspect, a kind of network function towards NFV provided by the invention verify system, including user's loader and net
Network functional verification device；
(1) user's loader described in, the NFV service requests for receiving user, and analysis example user network are referred to
The device of resource and logical topological structure needed for network functional verification environment, including user's input receiving unit, business demand point
Analyse three parts of unit and resources configuration management unit；
Described user's input receiving unit, it is responsible for receiving the parameter for the NFV business that user intends instantiation；
Described business demand analytic unit, it is responsible for the parameter of NFV business inputted according to user, calculates NFV business
Resource requirement and the logical topology model of adaptation；
Described resources configuration management unit, it is responsible for the result of calculation according to business demand analytic unit, for each money
Source generates a configuration file, and continues to manage all configuration files, be each element in logical topology instantiation and
The generation of service traffics provides parameter and supported；
(2) the network function validator described in, refer to be used to performing and verifying network function example environments, and by example
Change the device of state output, including logical topology adaptation unit, service traffics generation unit and instantiation result output unit three
Individual part；
Described logical topology adaptation unit, it is responsible for the configuration file according to resources configuration management unit, instantiates logic
Each element in topological model；
Described service traffics generation unit, it is responsible for the configuration file according to resources configuration management unit, produces satisfaction and refer to
Determine the network traffics of the conditions such as type, assigned rate；
Described instantiation result output unit, responsible acquisition logic adaption of topology unit and service traffics generation unit
Configuration performs parameter, and the NFV service environments after instantiation and the systematic parameter after instantiation are exported to user.
The present invention compared with prior art, has following technique effect using above technical scheme：NFV supports the spirit of resource
Renewal and the quick exploitation and deployment of new business living are, it is necessary to be adapted to diversified Network, but prior art lacks one
Kind can be quickly generated and verify the method and system of NFV network functions；The present invention realizes a kind of network function towards NFV
Verification process, (resource impact, test script are adjustable) is unified in a manner of dynamic expansion and rapidly realizes NFV functions
Design, realize and verification process, for the different service-user demand of different service adaptations provide a kind of feasible method with
System.
Brief description of the drawings
Fig. 1 is a kind of basic structure schematic diagram that the network function provided in an embodiment of the present invention towards NFV verifies system；
Fig. 2 is the network function verification method flow chart provided in an embodiment of the present invention towards NFV；
Fig. 3 is a kind of structural representation for refinement that the network function provided in an embodiment of the present invention towards NFV verifies system
Figure；
Fig. 4 is a kind of interaction for refinement that the network function provided in an embodiment of the present invention towards NFV verifies system
Flow chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described.It is aobvious
So, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is all belonged to
In the scope of protection of the invention.
A kind of network function verification method and system towards NFV provided in an embodiment of the present invention, can be according to different use
The business demand instantiation network verification environment at family, and the test and analysis of NFV Business Streams are supported automatically.
As shown in figure 1, the network function provided in an embodiment of the present invention towards NFV verifies a kind of basic structure bag of system
Include：User's loader and network function validator；Described user's loader is responsible for receiving the NFV service requests of user, and divides
Resource and logical topological structure needed for analysis instantiation user network functional verification environment；Described network function validator is responsible for
Perform and verify network function example environments, and export the state of instantiation；Relation 101 represents that user's loader matches somebody with somebody resource
Put file and be sent to network function validator.
A kind of as shown in Fig. 2 schematic diagram bag of the network function verification method provided in an embodiment of the present invention towards NFV
Include：
Step 201, user network business demand is obtained, determine the resource requirement classification of Network instantiation；Step
202nd, according to NFV business demands, the logical topology model of adaptation is generated；Step 201 and step 202 betide the user in Fig. 1
Loader；
Step 203, the logical topology model according to adaptation, analysis resource requirement, the instantiation process of execution logic topology,
The mapping relations established between logical topology and resource；" according to the logical topology model of adaptation, analysis resource needs in step 203
Ask " betide user's loader in Fig. 1；In step 203 " execution logic topology instantiation process, establish logical topology
Mapping relations between resource " betide the network function validator in Fig. 1；
Step 204, according to user's NFV business demands, calculate the parameter of Business Stream, the generation mode of configuration service stream, to
The resource instantiated issues corresponding service test script；Step 205, the resource instantiated perform operational trials script；Step
Rapid 204 and step 205 betide network function validator in Fig. 1.
The structure of system, division are verified for a further understanding of the network function provided in an embodiment of the present invention towards NFV
User's loader and network function validator in Fig. 1 are different functional units, and Fig. 3 show provided in an embodiment of the present invention
Towards a kind of structural representation of refinement of NFV network function checking system.
User's loader in Fig. 3 includes user's input receiving unit, business demand analytic unit and resources configuration management
Three parts of unit；
1) user's input receiving unit described in, it is responsible for receiving the parameter for the NFV business that user intends instantiation；Specific real
In existing, the NFV service requests of user include Network unit topology demand, operational trials unit topology demand, service traffics
Type and forward-path demand etc.；
2) the business demand analytic unit described in, it is responsible for the parameter of NFV business inputted according to user, calculates NFV business
Resource requirement and adaptation logical topology model；Described resource requirement mainly includes the other resource of three species：Network transmits
Class resource, data processing class resource, operational trials class resource；
Described network transmission class resource refers to the physical resource or virtual resource for realizing network connection and routing forwarding service,
Such as virtual switch, virtual router etc.；
Described data processing class resource refers to run the physical resource of the service of I/O intensive type or computation-intensive service
Or virtual resource, the fictitious host computer for being usually deployed network function for example perform the fictitious host computer of NAT services, perform firewall applications
Fictitious host computer etc.；
Described operational trials class resource refers to the physical resource or virtual resource for aiding in carrying out NFV operational trialss, example
Such as produce fictitious host computer, the fictitious host computer of deployment checking software of test network flow；
3) the resources configuration management unit described in, it is responsible for the result of calculation according to business demand analytic unit, is each
Resource generates a configuration file, and continues to manage all configuration files, is the instantiation of each element in logical topology
Generation with service traffics provides parameter and supported；
In the specific implementation, configuration object includes but is not limited to mirrored host computer, flavor configurations, network card configuration, network are matched somebody with somebody
Put (network segment, gateway, Host routes, DNS etc.), the template profile vnfd of virtual network function, the template of network service are matched somebody with somebody
Put file nsd etc.；
Network function validator in Fig. 3 includes logical topology adaptation unit, service traffics generation unit and instantiation knot
Three parts of fruit output unit；
1) the logical topology adaptation unit described in, it is responsible for being patrolled according to the configuration file of resources configuration management unit, instantiation
Collect each element in topological model；
Specific instantiation includes but is not limited to empty based on OpenStack calculating virtualization, network virtualization, network function
Planization realizes the instantiation of virtual resource in logical topology；
Illustrate instantiation process, instantiation process first create network transmission class resource, including OpenStack networks,
Subnet, port, router etc.；Then operational trials class resource is created, i.e., is created based on different test class Software Mirrorings virtual main
Machine；Data processing class resource is finally created, generates vnfd, nsd Template Information, creates vnfd, nsd, vnf, ns object, it is synchronous
Fictitious host computer information is to local data base in vnf, ns, to support management of the later stage to these fictitious host computers to operate；
2) the service traffics generation unit described in, it is responsible for the configuration file according to resources configuration management unit, produces satisfaction
The network traffics of the conditions such as specified type, assigned rate；
The operational trials script of the output of the resources configuration management unit of service traffics generation unit foundation includes but unlimited
When network traffics forward-path is set, sets network traffics type, setting network traffics to produce speed, setting test starting
Between, test time etc. is set；
For example, network traffics forward-path and discharge pattern configuration can divide two parts to realize, Network unit
The vnffg objects that internal network traffics forward-path and discharge pattern configuration are virtualized by OpenStack network functions are real
Existing, flow forward-path and discharge pattern configuration between operational trials unit and Network unit pass through OpenStack's
Networking-sfc port chain object implementatio8s；
3) the instantiation result output unit described in, it is responsible for acquisition logic adaption of topology unit and service traffics generation unit
Configuration perform parameter, to user export instantiation after NFV service environments and instantiation after systematic parameter.
For a further understanding of the following detailed description of between unit in user's loader of the present embodiment and network work(
The interaction being able to verify that in device between unit, Fig. 4 are that the network function provided in an embodiment of the present invention towards NFV is verified
A kind of interaction schematic diagram of refinement of system：
1) user's input receiving unit obtains the NFV network work(of user by approach such as man machine interface, machine-machine interfaces
It is able to verify that the demand of business；
2) user's input receiving unit is by previous step 1) in demand be sent to business demand analytic unit, the operation is corresponding
Relation 301 in Fig. 3；
3) business demand analytic unit be responsible for parse previous step 2) in transmit user's request, calculating realize the user's request
Required all kinds of resources, build the service logic topological model needed for network function verification process；
4) business demand analytic unit is by previous step 3) in generation service resources demand and service logic topological model send out
Resources configuration management unit is sent to, the relation 302 that the operation corresponds in Fig. 3；
5) resources configuration management unit produces all kinds of resources according to service logic topological model, resource requirement, current resources situation
Configuration file；
6) resources configuration management unit is by previous step 5) in caused configuration file or script file be separately sent to logic
Adaption of topology unit and service traffics generation unit, the pass that the two processes are corresponded respectively in relation 303 and Fig. 3 in Fig. 3
It is 304；Relation 303 in Fig. 3 transmits the network transmission configuration file of class resource, the configuration file of data processing class resource, industry
The configuration file for test class resource of being engaged in；The business transferring test script file of relation 304 in Fig. 3；
7) configuration file for the resources configuration management unit that logical topology adaptation unit transmits according to relation 303, instantiation
Each element in logical topology model, including instantiation network transmission class resource, data processing class resource, operational trials class money
Source；Specific instantiation includes but is not limited to calculate virtualization, network virtualization, network function virtualization based on OpenStack
Realize the instantiation of virtual resource in logical topology；
8) service traffics generation unit is according to previous step 7) in relation in the operational trials class resource and Fig. 3 that have instantiated
The attributes such as the 304 operational trials script files transmitted, the type of configuration service flow, forward-path, bandwidth；After the completion of configuration,
Perform NFV operational trialss；Perform the relation 305 that the process of NFV business corresponds in Fig. 3；
9) logical topology adaptation unit by the initial state information of all kinds of resources of instantiation, pilot process information, complete
Status information etc. is sent to instantiation result output unit；The relation 306 that the process corresponds in Fig. 3；
10) service traffics state output is constantly sent to instantiation result output unit by service traffics generation unit；
The relation 307 that the process corresponds in Fig. 3；
11) instantiation result output unit collects the various status informations in instantiation and network function verification process, and
Externally exported by approach such as man machine interface, machine-machine interfaces.
It should be noted that, method and system embodiment described above is only schematical, wherein described in addition
The device and unit illustrated in system architecture as separating component can be or may not be it is physically separate, as defeated
The part for entering output can be or may not be physical location, you can with positioned at a place, or can also be distributed to
On multiple NEs.Some or all of module therein can be selected to realize this embodiment scheme according to the actual needs
Purpose.In addition, in system embodiment accompanying drawing provided by the invention, the annexation between device, between unit represents them
Between have communication connection, specifically can be implemented as one or more communication bus or signal wire.Those of ordinary skill in the art
Without creative efforts, you can to understand and implement.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention relates to
Resource can be that virtualization form can also be physical form.But it is more for the purpose of the present invention in the case of virtualize it is soft
It is more preferably embodiment that part program, which is realized,.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in what be can be read
It is USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random such as the floppy disk of computer in storage medium
Memory (RAM, Random Access Memory), magnetic disc or CD etc., including some instructions are accessed to cause one
Computer equipment (can be personal computer, server, or network equipment etc.) is performed described in each embodiment of the present invention
Method.
A kind of network function verification method and system towards NFV provided above the embodiment of the present invention has been carried out in detail
It is thin to introduce, for those of ordinary skill in the art, according to the thought of the embodiment of the present invention, in embodiment and using model
There will be changes are placed, therefore, this specification content should not be construed as limiting the invention.
Claims (7)
1. a kind of network function verification method towards NFV, it is characterised in that the verification method comprises the following steps：
Step 1, user network business demand is obtained, determine the resource requirement classification of Network instantiation；
Step 2, NFV business demands, the logic that generation is adapted with the Network practice are virtualized according to network function
Topological model；
Step 3, according to the logical topology model, analyze resource requirement, the instantiation process of execution logic topology, establish logic
Mapping relations between topology and resource；
Step 4, according to user's NFV business demands, calculate the parameter of Business Stream, the generation mode of configuration service stream, to example
The resource of change issues corresponding service test script；
Step 5, operational trials script is performed to the resource instantiated.
A kind of 2. network function verification method towards NFV according to claim 1, it is characterised in that described resource
Include three kinds of classifications：Network transmission class resource, data processing class resource, operational trials class resource.
A kind of 3. network function verification method towards NFV according to claim 2, it is characterised in that described network
Transmission class resource refers to the physical resource or virtual resource for realizing network connection and routing forwarding service；
Described data processing class resource refers to run the physical resource or void of the service of I/O intensive type or computation-intensive service
Intend resource；
Described operational trials class resource refers to the physical resource or virtual resource for aiding in carrying out NFV operational trialss.
A kind of 4. network function verification method towards NFV according to claim 2, it is characterised in that
Described operational trials script includes setting network traffics forward-path, sets network traffics type, sets network traffics
Speed is produced, the test starting time is set, test time is set.
5. a kind of network function towards NFV verifies system, it is characterised in that the checking system includes user's loader and net
Network functional verification device；
Described user's loader refers to the NFV service requests for receiving user, and analysis example user network function is tested
Demonstrate,prove environment needed for resource and logical topological structure device, including user's input receiving unit, business demand analytic unit and
Resources configuration management unit；
Described network function validator, refer to be used to performing and verifying network function example environments, and state will be instantiated
The device of output, including logical topology adaptation unit, service traffics generation unit and instantiation result output unit.
6. a kind of network function towards NFV according to claim 5 verifies system, it is characterised in that
Described user's input receiving unit, it is responsible for receiving the parameter for the NFV business that user intends instantiation；
Described business demand analytic unit, it is responsible for the parameter of NFV business inputted according to user, calculates the resource of NFV business
The logical topology model of demand and adaptation；
Described resources configuration management unit, it is responsible for the result of calculation according to business demand analytic unit, is given birth to for each resource
Into a configuration file, and continue to manage all configuration files, instantiation and business for each element in logical topology
The generation of flow provides parameter and supported.
7. a kind of network function towards NFV according to claim 5 verifies system, it is characterised in that
Described logical topology adaptation unit, it is responsible for the configuration file according to resources configuration management unit, instantiates logical topology
Each element in model；
Described service traffics generation unit, it is responsible for the configuration file according to resources configuration management unit, produces and meet to specify class
The network traffics of the conditions such as type, assigned rate；
Described instantiation result output unit, it is responsible for the configuration of acquisition logic adaption of topology unit and service traffics generation unit
Parameter is performed, the NFV service environments after instantiation and the systematic parameter after instantiation are exported to user.
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| CN112988336A (en) * | 2021-05-18 | 2021-06-18 | 新华三技术有限公司 | Network verification method and device of data center |
| CN114884856A (en) * | 2022-07-11 | 2022-08-09 | 中国科学技术大学 | Reconfigurable network test system and method based on test function virtualization |
| CN114884856B (en) * | 2022-07-11 | 2022-09-30 | 中国科学技术大学 | Reconfigurable network test system and method based on test function virtualization |
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