CN106254178A - A kind of network test platform NFVNTP based on NFV and test method thereof - Google Patents
A kind of network test platform NFVNTP based on NFV and test method thereof Download PDFInfo
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- CN106254178A CN106254178A CN201610627345.9A CN201610627345A CN106254178A CN 106254178 A CN106254178 A CN 106254178A CN 201610627345 A CN201610627345 A CN 201610627345A CN 106254178 A CN106254178 A CN 106254178A
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Abstract
The present invention be directed to existing network test platform do not possess test fidelity and build extensive, complex network test environment technically or safety the most infeasible and with high costs upper, problem, a kind of based on NFV network test platform NFVNTP of proposition and the test method thereof such as the cycle is very long.Based on NFVNTP, function is true, performance is credible, scene customizable large scale network experimental enviroment can to build one based on open source code platform with specific NFV networking component, measurand can be made to be placed in network loop, thus obtain genuine and believable applied in network performance test result.
Description
Technical field
The invention belongs to network communication field, specifically propose a kind of network test platform based on NFV and set
Meter method.
Background technology
At present, new network application and the network equipment, before entering practicality, will thoroughly be tested and Performance Evaluation.
Build real network environment, the network environment especially building large-scale complex is with high costs, the cycle very long be often difficult to by
Accept, go up the most infeasible the most technically or safely.Such as, when the empty Incorporate new network of research and development, because building network
Key technology is still in development or test also exist reveal important traffic parameter may etc. reason, at research and development initial period
Just build network test platform unrealistic.Therefore, a kind of test with test fidelity is provided to put down in laboratory environments
Platform becomes the key promoting the development of advanced networks technology, has important theory significance and practical value.Here platform is provided
The adaptability etc. of the verity of test result and the compatibility of network environment and reply plurality of application scenes is referred to as testing fidelity
Property.This possess test fidelity platform can truly operational network agreement and provide network function；Energy and real network
Equipment interface, makes tested agreement or equipment be positioned in specific network loop；The most also there is easily structure, low cost, safety protect
The features such as close, interface opening.
Network function virtualization (Network Functions Virtualization, NFV) that development in recent years is got up
Technology uses Intel Virtualization Technology network function implemented in software, and multiple virtualization network function can coexist in virtual machine form
In generic server virtualization software, and can install as required or move in network optional position without deployment
New hardware device.By by network function software implementation, NFV makes network function break away from the constraint of specialized hardware, gives communication fortune
Battalion business brings many benefits: use is purchased in minimizing, and chance is few, energy consumption is high, function singleness, expensive special hardware (example
Such as some dedicated network safety equipment) expense；Shorten the cycle that new technique is introduced, thus accelerate innovation and the new business of network
Deployment；Reduced the complexity managing a large amount of hardware devices by Automated condtrol, the most also reduce administration fee and use.Therefore,
The key feature that NFV has is adapted as building the support technology of Instruction Network Test System Platform in theory.
Summary of the invention
The present invention is directed to existing network test platform do not possess test fidelity and build extensive, complex network test
The problems such as environment is technically or safety is the most infeasible and with high costs, the cycle is very long, it is proposed that a kind of network based on NFV tries
Test platform (NFV based Network Testing Platform, NFVNTP) and test method thereof.Based on NFVNTP, it is possible to
Function is true, performance is credible, scene customizable network test environment to play one with specific NFV component construction, can make tested
Object is placed in network loop, thus obtains genuine and believable network test results.
The technical scheme is that
A kind of network test platform NFVNTP based on NFV, it includes: core network and be positioned at the limit of core network periphery
Hoddy network；
Described core network includes that one or more server, aforementioned multiple servers are connected with each other by Ethernet card
To reach the scale of network test platform, server can support (SuSE) Linux OS, virtualization software and various procotol
Operation；
Described edge network is the enterprise network of one or more actual motion, LAN.
The server of the present invention runs the virtualization software KVM that increases income in (SuSE) Linux OS, is melted into by server virtual
Several virtual machines, and on each virtual machine, run virtualization networking component so that each virtual machine has based on the realization of NFV technology
The ability of the equipment in real network environment.
The server of the present invention is led to other servers or edge network by the Ethernet card of one or more multiport
Letter.
The virtualization networking component of the present invention includes: virtualization routing component, virtualization network performance assembly, extraordinary network
One or more in virtualisation component and visualized operation assembly, wherein:
Virtualization routing component is used for configuring router and to make virtual router be formed based on routing protocol end-to-end
Path；Make virtual machine enter router configuration mode by zebra program, then Quagga Routing Software is deployed to virtual machine
In；
Virtualization network performance assembly realizes the control to network transmission performance based on network analog functional software NetEm,
Quantitatively customized network performance parameter；
Extraordinary network virtualization assembly is by calling above-mentioned virtualization routing component and virtualization network performance assembly, then leads to
Cross the performance parameter that configuration is corresponding, or the performance parameter corresponding with configuration by working out corresponding procotol, with virtualization
Or simulate the impact that the network with specific function is same on the transmission generation of stream of packets；
Visualized operation assembly is to customize NFVNTP environment by graphical user interface module, to facilitate operation.
In the virtualization networking component of the present invention, performance parameter include bandwidth, transmission delay, packet loss, packet jitter,
Out-of-sequence and the packet parameter such as redundancy.
In the extraordinary network virtualization assembly of the present invention, have the network of specific function include satellite network, Wi-Fi,
Rong Chi/appearance circuit network DTN, Sensor Network and/or under water net in one or more.
A kind of network test method based on NFV, it comprises the following steps:
A. when test application program time, in the edge network of network test platform both sides, dispose respectively, run tested
Application program；
B. according to test demand, by dispose core network on the server be set to required network topology, route and
Resource distribution, and allow and be test for network application and run by edge network and core network.
The network test platform set path of the NFV of the network application process of the present invention runs, and is being connected with edge network
First virtual machine on dispose process of measurement, collect the performance parameter of this network application；Performance to the network application collected
Test data, are analyzed according to demand processing, obtain the Evaluation results of program to be measured.
A kind of network test method based on NFV, it comprises the following steps:
A. when the network equipment that test is developed, the net that the tested network equipment is placed between edge network and core network
In network loop, and with standard network interface, the tested network equipment is connected with edge network and core network respectively；
B. according to test demand, by dispose core network on the server be set to required network topology, route and
Resource distribution, and allow required network application be run by it.
Network test equipment is serially connected between network edge and the interface of network core by the present invention, runs this equipment,
Network application runs on the path through the network test platform of NFV；Collect this network application performance test data, and according to
Demand analysis processes the performance data collected, and obtains the Evaluation results of required network test equipment.The present invention has
Benefit effect:
Present invention have an advantage that (1) NFVNTP is that web application and equipment etc. are tested right based on virtualization mode
As providing test fidelity, there is the features such as easy structure, low cost, safe and secret, interface opening；(2) NFVNTP can be virtual
Changing or simulation has the network of specific function, the comprehensive function that can test measurand and they and large-scale ip network is imitated
Really；(3) can be placed in actual for equipment under test in NFVNTP loop, physical interface specification and the logic function of this equipment obtain reality
Border is tested；(4) edge net is live network and core net is NFVNTP, and this mixed structure is without to server end and client
Application program carry out any amendment；(5) when edge net is SDN, by coding on the controller, can be formed net
The control ability that network is the strongest；(6) NFVNTP has good wide area IP network Performance Characteristics.
Accompanying drawing explanation
Fig. 1 is the organizational structure schematic diagram of NFVNTP.
The system assumption diagram of Fig. 2 NFVNTP.
Fig. 3 measured data chain equipment passes through NFVNTP environmental testing structural representation.
The structural representation that Fig. 4 OpenFlow network is interconnected by wide area network.
Fig. 5 video stream bandwidth change curve.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of network test platform based on NFV, it includes: core network and be positioned at core network periphery
Edge network；
Described core network includes that one or more server, aforementioned multiple servers are connected with each other by Ethernet card
To reach the scale of network test platform, server can support (SuSE) Linux OS, virtualization software and various procotol
Operation；
Described edge network is the enterprise network of one or more actual motion, LAN.
The server of the present invention runs the virtualization software KVM that increases income in (SuSE) Linux OS, is melted into by server virtual
Several virtual machines, and on each virtual machine, run virtualization networking component so that each virtual machine realizes true based on NFV technology
The ability of the equipment in network environment；Virtualization networking component include: virtualization routing component, virtualization network performance assembly,
One or more in extraordinary network virtualization assembly and visualized operation assembly, wherein:
Virtualization routing component is used for configuring router and to make virtual router be formed based on routing protocol end-to-end
Path；Make virtual machine enter router configuration mode by zebra program, then Quagga Routing Software is deployed to virtual machine
In；
Virtualization network performance assembly realizes the control to network transmission performance based on network analog functional software NetEm,
Quantitatively customized network performance parameter；
Extraordinary network virtualization assembly is by calling the network function module of correspondence, the procotol of establishment correspondence, or
Person, by configuring performance parameter, virtualizes or simulates the impact on packet transmission of the network with specific function；
Visualized operation assembly is to customize NFVNTP environment by graphical user interface module, is used for simplifying operation.
When being embodied as:
For certain datalink network equipment of testing and assessing in air-sea environment, when cruising in overhead, ocean such as certain aircraft, it is taken
The data chain device of band utilizes low-speed wireless channel to transmit information to satellite, then transmits information to satellite earth by satellite
Stand, finally by continental rise cable-network transmission to control centre.When this data chain device needs upgrading, need newly developing
Testing equipment, until determining and could formally coming into operation when it is reliable and stable.In this data chain device development process,
If repeatedly tested in true environment, expense is huge and easily reveals messaging parameter.Therefore, it is that this network sets based on NFVNTP
The network test platform that standby structure one has test fidelity is significant.
In order to test the network under air-sea environment as shown in Figure 3, following work to be done: 1) end system main frame H1 and H2 adopt
With Lenovo T440p portable machine, be placed in end-to-end path both sides；2) equipment under test is data chain device, is placed in tested network
In loop；3) on NFVNTP, set multiple bgp router, core network is divided into multiple autonomous system (AS).Virtual road
Being configured to bgp router by device r4, r5, r6, whole network is divided into three AS.One of them AS is used for analog satellite net
Network, r2 uses NetEm to simulate low speed, the wireless channel of high packet loss, and r4 uses NetEm to simulate Medium-bandwidth, high time delay and
Determine the satellite channel of packet loss, and other AS simulate high speed bandwidth land-based network.Data chain device to be measured and generic server
On NFVNTP be joined directly together, i.e. testing data chain equipment is by the physical interface eth1 of server and virtual router r2 phase
Even.Satellite network is mapped to server physical interface eth0 by virtual router r1, then with the entity router R1 in LAN1
It is connected.Wherein LAN1 represents control center, and H1 representative information presents terminal.
Embodiment
The present embodiment design achieves two OpenFlow networks and interconnects prototype system by wide area network, and shown in Fig. 4
Experimental enviroment in be tested.SDN is that transmission via net provides new architecture, and OpenFlow network is to meet SDN
The network of southbound interface standard, it separates the working method of control plane and datum plane and firmly gets people's high praise.Utilize the IP kernel heart
It is the most widely used mode that multiple OpenFlow subnetwork interconnection of network edge are got up by network, and we utilize NFVNTP mutual
Even two OpenFlow subnets.
Initially with the OpenFlow switch that bench-types No. 2 are Pica8P3297,2 Lenovo running Linux
T4900v PC constitutes two as POX controller and 4 Windows main frame H11, H12, H21 and H22 modes as shown in Figure 4
OpenFlow subnet.NFVNTP still uses the wide area network that configuration is identical with 6.1 joints.One end of these two OpenFlow switches
Mouth is connected with a physical interface of generic server respectively, i.e. OFS1 port 1 is by server eth1 interface and virtual flow-line
Device r1 is connected；OFS2 port 1 is connected with virtual router r2 by server eth0 interface.
In order to test this hybrid network, we have done following work: 1) write phase respectively on SDN controller C1 and C2
Close control program, lead to WAN router for communication host and set up stream list item.2) on main frame H11, configure VLC server, adopt
Play video with http protocol continuously, and on main frame H12, H21 and H22, configure VLC client, respectively on access H11
The video play.3) at client host, Wireshark, the communication process of capture video flowing are installed.Fig. 5 be video flowing in time
The curve of change, these three flow curves represent video flow when simultaneously having 1,2,3 clients to access video server respectively
Time dependent situation.
Part that the present invention does not relate to is the most same as the prior art maybe can use prior art to be realized.
Claims (10)
1. a network test platform NFVNTP based on NFV, is characterized in that it includes: core network and be positioned at core network week
The edge network on limit；
Described core network includes that one or more server, aforementioned multiple servers are connected with each other to reach by Ethernet card
To the scale of network test platform, server can support (SuSE) Linux OS, virtualization software and the fortune of various procotol
OK；
Described edge network is the enterprise network of one or more actual motion, LAN.
Network test platform NFVNTP based on NFV the most according to claim 1, is characterized in that described server runs
The virtualization software KVM that increases income in (SuSE) Linux OS, is melted into several virtual machines by server virtual, and at each virtual machine
Upper run virtualization networking component so that each virtual machine has the energy realizing equipment in real network environment based on NFV technology
Power.
Network test platform NFVNTP based on NFV the most according to claim 1, is characterized in that described server passes through
The Ethernet card of one or more multiport and other servers or edge network communication.
Network test platform NFVNTP based on NFV the most according to claim 2, is characterized in that virtualizing networking component bag
Include: in virtualization routing component, virtualization network performance assembly, extraordinary network virtualization assembly and visualized operation assembly
Plant or multiple, wherein:
Virtualization routing component is used for configuring router and making virtual router form end-to-end path based on routing protocol；
Make virtual machine enter router configuration mode by zebra program, then Quagga Routing Software is deployed in virtual machine；
Virtualization network performance assembly realizes the control to network transmission performance based on network analog functional software NetEm, quantitatively
Customized network performance parameter；
Extraordinary network virtualization assembly is by calling above-mentioned virtualization routing component and virtualization network performance assembly, then passes through to join
Put the performance parameter of correspondence, or the performance parameter corresponding with configuration by working out corresponding procotol, with virtualization or mould
Draw up has the network of specific function that the transmission of stream of packets is produced same impact；
Visualized operation assembly is to customize NFVNTP environment by graphical user interface module, to facilitate operation.
Network test platform NFVNTP based on NFV the most according to claim 4, is characterized in that virtualizing networking component
In, performance parameter includes bandwidth, transmission delay, packet loss, packet jitter, the out-of-sequence and packet parameter such as redundancy.
Network test platform NFVNTP based on NFV the most according to claim 4, is characterized in that extraordinary network virtualization group
In part, have the network of specific function include satellite network, Wi-Fi, appearance late/hold circuit network DTN, Sensor Network and/or under water
One or more in net.
7. a network test method based on NFV, is characterized in that it comprises the following steps:
A. when test application program time, in the edge network of network test platform both sides, dispose respectively, run be test for should
Use program；
B. according to test demand, the core network disposed on the server is set to required network topology, route and resource
Configuration, and allow and be test for network application and run by edge network and core network.
Network test method based on NFV the most according to claim 7, is characterized in that: the net of the NFV of network application process
Network test platform set path runs, and disposes process of measurement, collect this network on the first virtual machine being connected with edge network
The performance parameter of application；Performance test data to the network application collected, is analyzed according to demand processing, obtains to be measured
The Evaluation results of program.
9. a network test method based on NFV, is characterized in that it comprises the following steps:
A., when the network equipment that test is developed, the network that the tested network equipment is placed between edge network and core network is returned
Lu Zhong, and with standard network interface, the tested network equipment is connected with edge network and core network respectively；
B. according to test demand, the core network disposed on the server is set to required network topology, route and resource
Configuration, and allow required network application be run by it.
Network test method based on NFV the most according to claim 9, is characterized in that: network test equipment be serially connected in
Between network edge and the interface of network core, running this equipment, network application is in the path of the network test platform through NFV
Upper operation；Collect this network application performance test data, and analyze and process the performance data collected according to demand, obtain required
The Evaluation results of network test equipment.
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| CN109308210A (en) * | 2018-09-13 | 2019-02-05 | 中国人民解放军陆军工程大学 | Method for optimizing NFV forwarding service chain performance on multi-core server |
| CN110247827A (en) * | 2019-07-25 | 2019-09-17 | 浙江鹏信信息科技股份有限公司 | NFV network element based on the twin technology of number surrounds test method and device entirely |
| CN110505118A (en) * | 2019-08-20 | 2019-11-26 | 内蒙古大学 | Personal area network experimental bed and its realization, test method |
| CN110636137A (en) * | 2019-10-14 | 2019-12-31 | 河海大学常州校区 | Cluster-based NFV service chain optimization method in ocean view monitoring network |
| CN113055218A (en) * | 2019-12-29 | 2021-06-29 | 中国移动通信集团浙江有限公司 | Redundancy evaluation method and device for NFV network and computing equipment |
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| CN106254178B (en) | 2019-12-17 |
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