CN101494574A - Performance test system and method for double-layer virtual special access backbone network - Google Patents
Performance test system and method for double-layer virtual special access backbone network Download PDFInfo
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Abstract
The invention discloses a performance testing system and a method of a two-layer virtual private access backbone network, relating to the technical field of network communication. The method utilizes different interfaces of a data network analyzer to respectively simulate the access of an operator router and an operator edge router P plus PE and the access of a user edge device CE, and connects the simulated P plus PE with the simulated CE by the equipment to be tested to carry out parameter configuration for the P plus PE and the equipment to be tested so as to establish the two-layer virtual private access L2VPN backbone network; and the data network analyzer is utilized to simulate the L2VPN access backbone network established during the mass user concurrent access in real time so as to realize virtual private local area network VPLS service. The technical proposal fully simulates network deployment environment during the actual use of accessing the CE into the L2VPN, furthermore, the invention greatly saves the access of the testing equipment and improves the testing efficiency.
Description
Technical field
The present invention relates to network communications technology field, particularly relate to Performance Test System and method that a kind of L2VPN (Layer 2 VirtualPrivate Networks, Layer 2 virtual private network) inserts backbone network.
Background technology
The L2VPN technology is in order to make full use of IP/MPLS (Multi-Protocol Label Switching, multiprotocol label switching) Internet resources are supported what data service was released, provide the transmission passage with the IP/MPLS network for Layer 2 data link bag, so that realize the fusion of IP network and data network, for example, ATM (Asynchronous Transfer Mode, asynchronous transfer mode) cell, FR (Frame Relay, frame relay) frame, ethernet frame etc.
The L2VPN business that current operation provider can offer the user has two kinds of different forms, i.e. VPWS (Virtual Private Wire Service, virtual private circuit business) and VPLS (VPLS).
Wherein, VPWS builds on the infrastructure of MPLS network, and two layers of transparent transmission at a high speed are provided between a pair of port of two routers.The VPWS chief component comprises: PE (Provider Edge, Provider Edge) router, label distribution protocol (LDP, Label Distribution Protocol) and MPLS label switched tunnel (LSPTunnel), its typical networking structure as shown in Figure 1.
Pe router has and safeguards and the link information of its two layers of transparent transmissions that directly link to each other that pe router also is responsible for VPN client's general data bag is marked and remove mark simultaneously, so pe router must be an edge labelling switch router.
Will define the lsp tunnel that passes the MPLS network between two pe routers, lsp tunnel provides tunnel label (TunnelLabel), thus between two pe routers transparent data.Simultaneously also will define direct label distribution protocol process between two pe routers, be used for transmitting the information of virtual link, wherein most critical is to distribute virtual link mark (VCLabel) by coupling VCID.
When the port of two layers of transparent transmission had packet to enter pe router, pe router found corresponding with it tunnel label and virtual link mark by coupling VCID.Pe router can be stamped this packet two-layer mark, and wherein outer mark is a tunnel label, the path of indication from this pe router to the purpose pe router; Internal layer is labeled as the virtual link mark, and indication belongs to the router port of which VCID correspondence on the purpose pe router.
Pe router will monitor the two-layer protocol state on the port separately, as the url management interface LMI of frame relay or the ILMI of ATM.When breaking down, cancel the virtual link mark by the label distribution protocol process, thereby disconnect this two layers of transparent transmissions, avoid producing unidirectional hash stream.
This two layers of transparent transmission mode based on MPLS, having changed two layers of traditional link must be by the restriction of switching network realization, it has fundamentally formed the business model of " a net multiple business ", allows operator that two layer services and three layer services can be provided in a MPLS network simultaneously.
VPLS provides a kind of multi-multipoint COS, mainly is the artificial service that requires to provide Ethernet in the MPLS/IP core transport network, and its typical networking structure as shown in Figure 2.
For the MPLS two-layer VPN, Virtual network operator is responsible for providing to the user two layers connectedness, and the route that need not participate in VPN user is calculated.When the two-layer VPN of full connection was provided, the CE of each VPN (Customer Edge, customer edge) need be connected distributing one between CE and the PE to other CE.
For PE equipment, when a VPN had N Site (website), CE-PE just must have (N-1) individual physics or logic port to connect.Because irrelevant with user's route, the extensibility of two layers of MPLS VPN is only relevant with the VPN number of users that connects.
Two-layer VPN can be realized by the MP-BGP expansion, also can realize by the LDP expansion, both are respectively by draft: the draft-ietf-12vpn-vpls-bgp-xx (VPLS of Kompella mode, adopt the VPLS of BGP as the PW signaling protocol) and draft-ietf-12vpn-vpls-ldp-xx (VPLS of Martini mode adopts the VPLS of LDP as the PW signaling protocol).
In the LDP of VPLS scheme, solve the problem of " how between two CE, setting up VC (VirtualCircuit, virtual circuit) " emphatically.Martini L2VPN adopts VC-TYPE+VC-ID to discern VC, and wherein, VC-TYPE shows that the type of VC is ATM, VLAN or PPP, and VC-ID is used for VC of unique sign.
In all VC of same VC-TYPE, VC-ID has uniqueness in whole SP network, and the PE that connects two CE exchanges the VC mark by LDP, and by VC-ID the CE of correspondence is bound.
Set up successfully at the LSP that connects two PE, after both sides' label switched and binding were finished, a VC had just set up, and two CE can transmit Layer 2 data by this VC.
Because the application of L2VPN business more and more widely, make and have only several users to insert originally to develop into present tens even up to a hundred users to insert the VPN network simultaneously.The requirement that this has just improved test promptly requires functional test, performance test and networking test to L2VPN more comprehensive.In the present method of testing, general only simulating the scene of small number of users access with several PCs, and, also do not have suitable method of testing for the scene that a large number of users inserts simultaneously.
Summary of the invention
Technical problem to be solved by this invention is provide a kind of Performance Test System and method of L2VPN access backbone network, thereby a large number of users that carries out L2VPN to insert load testing.
In order to address the above problem, the invention discloses a kind of performance test methods of double-layer virtual special access backbone network, comprising:
Utilize different port emulation operator's router and the access of provider edge router P+PE and the access of customer edge CE respectively of data network analyzer, P+PE and CE with institute's emulation connects by Devices to test, for described P+PE and described Devices to test carry out parameter configuration, to create the special-purpose L2VPN of access of two-layer virtual backbone network;
Utilize data network analyzer real-time simulation user concurrent in enormous quantities to insert the L2VPN that is created and insert backbone network, realize virtual special local area network VPLS business.
Further, in the said method, for carrying out parameter configuration, the P+PE of described emulation refers to, utilize data network analyzer emulation unicast routing protocol, be used to announce the loopback address Loopback route between described Devices to test and the emulation PE, utilize data network analyzer emulation mark distribution LDP agreement, it is mutual to be used for tunnel and the outer layer label created between described Devices to test and the emulation PE, utilize the data network analyzer to create virtual private network, be used for and the mutual vpn label of the VPN of described Devices to test.
Further, in the said method,, described Devices to test refers to for carrying out parameter configuration, for described Devices to test carries out the unicast routing protocol configuration, and multiprotocol label switching MPLS configuration and the configuration of VPLS forwarding instance.
Wherein, after the L2VPN that the concurrent access of described data network analyzer real-time simulation CE in enormous quantities is created inserts backbone network, adjust the quantity of data network analyzer simulation CE, test the performance capability index of described Devices to test, wherein, described performance capability is designated as the medium access address MAC table capacity of Devices to test.
The L2VPN that described data network analyzer emulation CE in enormous quantities is created with the different concurrent accesses of access way inserts backbone network.
The invention also discloses a kind of Performance Test System of double-layer virtual special access backbone network, comprise data network analyzer and Devices to test, wherein,
Described data network analyzer, utilize different ports emulation operator's router and provider edge router P+PE and customer edge CE respectively, for the P+PE of institute's emulation carries out parameter configuration, and create the two-layer virtual special use in conjunction with described Devices to test and insert the L2VPN backbone network, emulation user concurrent in enormous quantities inserts the L2VPN backbone network of being created;
Described Devices to test is used to the P+PE of institute's emulation and CE equipment to carry out exchanges data, and the line parameter of going forward side by side configuration is to create the special-purpose L2VPN of access of two-layer virtual backbone network.
Further, in the said system, the P+PE equipment that described data network analyzer is emulation carries out parameter configuration and refers to, described data network analyzer emulation unicast routing protocol, be used to announce the loopback address Loopback route between described Devices to test and the emulation PE, emulation mark distribution LDP agreement, it is mutual to be used to tunnel and the outer layer label created between described Devices to test and the emulation PE, create virtual private network, be used for mutual vpn label with the VPN of described Devices to test.
Further, in the said system, described Devices to test carries out parameter configuration and refers to, described Devices to test carries out the configuration of unicast routing protocol, the configuration of the configuration of multiprotocol label switching MPLS and virtual special local area network VPLS forwarding instance.
Wherein, described data network analyzer also is used to adjust the CE quantity of simulation, and to test the performance capability index of described Devices to test, wherein, described performance capability is designated as the medium access address MAC table capacity of Devices to test.
The L2VPN that described data network analyzer emulation CE in enormous quantities is created with the different concurrent accesses of access way inserts backbone network.
The technical solution of the present invention comprehensive simulated CE insert network environment in the actual use of L2VPN.And the present invention utilizes the data network analyzer to simulate the access of one group of P+PE equipment, and the access of a large amount of PE and CE equipment, has saved the access of testing equipment greatly, has improved testing efficiency.
Description of drawings
Fig. 1 is existing VPWS networking structure schematic diagram;
Fig. 2 is existing VPLS networking structure schematic diagram;
Fig. 3 is a test flow chart of the present invention;
The display interface of data network analyzer when Fig. 4 is 32 CE of emulation of the present invention, 32 PE;
The display interface of DUT when Fig. 5 is 32 CE of emulation of the present invention, 32 PE;
Fig. 6 is the display interface of the present invention's data network analyzer when simulating the ftp flow amount;
Fig. 7 is the display interface of 65536 users of emulation of the present invention data network analyzer when reaching the standard grade simultaneously.
Embodiment
Main design of the present invention is can simulate the method for testing that a large number of users inserts VPN simultaneously by existing data network analyzer, to solve the problem of the actual environment that can't simulate CE access L2VPN at present existing method of testing.
Below in conjunction with drawings and the specific embodiments technical solution of the present invention is described in further detail.
A kind of L2VPN inserts the Performance Test System of backbone network, as shown in Figure 2, comprises data network analyzer and Devices to test (switch DUT).
Data network analyzer wherein, be used to simulate P (Provider, operator's router)+PE equipment and CE equipment, mainly be to utilize the different port of data network analyzer to simulate the access of P+PE equipment and the access of CE equipment respectively, and carry out parameter configuration for P+PE equipment, concrete, utilize data network analyzer emulation unicast routing protocol, be used for announcing the Loopback route between Devices to test DUT and the emulation PE, utilize data network analyzer emulation LDP agreement, it is mutual to be used for tunnel and the outer layer label created between DUT and the emulation PE, utilizes the data network analyzer to create VPN, be used for DUT on the mutual vpn label of VPN; The data network analyzer is used for emulation user concurrent in enormous quantities and inserts the L2VPN backbone network of being created.
Devices to test is used to the P+PE equipment of emulation and CE equipment to carry out exchanges data, and the line parameter of going forward side by side configuration particularly, is at first disposed unicast routing protocol OSPFv2, carries out the MPLS relevant configuration again, is configuration VPLS forwarding instance at last.
Above-mentioned test macro carries out the process that L2VPN inserts the performance test of backbone network, the network edge device of mainly having simulated in the actual networking is that PE and customer edge are the Host (network-termination device) that CE and CE hang down, as shown in Figure 3, may further comprise the steps:
In this step, creating data network analyzer interface B earlier is a P equipment, creates PE equipment then again and get final product on the basis of P equipment.
In other embodiments, also can carry out the operation of above-mentioned steps 305 earlier, promptly earlier DUT be carried out parameter configuration, perhaps simultaneously data network analyzer and DUT be carried out parameter configuration respectively.
Can see that on DUT equipment LDP neighbours have built up this moment, and VPLS has also consulted success.
In other embodiments, the CE number of emulation and PE data also can be unequal.
In other embodiments, after the concurrent scene of reaching the standard grade of a plurality of Host of emulation, can also constantly upload downloading service by a plurality of Host of emulation.
Also have among some embodiment, can the emulation of pending data network analyzer behind 32 Host, begin to send out stream, simulation ftp flow amount, as shown in Figure 6, for example, on original message basis, add a TCP head, source port number is made as 21, the destination slogan is made as 20, certainly when the maximum user of Devices to test DUT inserts data and is 65536, also can there be 65536 main frames to reach the standard grade simultaneously under CE of emulation, as shown in Figure 7, dispose the scene that a CE hangs 65536 Host down, the maximum user that promptly can carry out L2VPN inserts load testing.
And in a preferred embodiment,, can allow the roasting for a long time machine of data network analyzer send out stream at miscellaneous service and scene, insert the stability of Devices to test under the loading condition to verify maximum user.
From the foregoing description as can be seen, the technical solution of the present invention comprehensive simulated CE insert network environment in the actual use of L2VPN.For example, utilize data network analyzer simulation CE, can simulate the situation that a large amount of Host insert, with the MAC table capacity of checking Devices to test.And the unicast routing protocol of emulation, LDP agreement, existing data network analyzer can both reasonablely be realized, easy operating and realization.Simultaneously, the tester software that the present invention relates to is familiar common software mostly, has stronger versatility.
Certainly; the present invention can also have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of performance test methods of double-layer virtual special access backbone network is characterized in that, comprising:
Utilize different port emulation operator's router and the access of provider edge router P+PE and the access of customer edge CE respectively of data network analyzer, P+PE and CE with institute's emulation connects by Devices to test, for described P+PE and described Devices to test carry out parameter configuration, to create the special-purpose L2VPN of access of two-layer virtual backbone network;
Utilize data network analyzer real-time simulation user concurrent in enormous quantities to insert the L2VPN that is created and insert backbone network, realize virtual special local area network VPLS business.
2, the method for claim 1 is characterized in that,
For carrying out parameter configuration, the P+PE of described emulation refers to, utilize data network analyzer emulation unicast routing protocol, be used to announce the loopback address Loopback route between described Devices to test and the emulation PE, utilize data network analyzer emulation mark distribution LDP agreement, it is mutual to be used for tunnel and the outer layer label created between described Devices to test and the emulation PE, utilize the data network analyzer to create virtual private network, be used for and the mutual vpn label of the VPN of described Devices to test.
3, the method for claim 1 is characterized in that,
For carrying out parameter configuration, described Devices to test refers to, for described Devices to test carries out the unicast routing protocol configuration, and multiprotocol label switching MPLS configuration and the configuration of VPLS forwarding instance.
4, as claim 1,2 or 3 described methods, it is characterized in that,
After the L2VPN that the concurrent access of described data network analyzer real-time simulation CE in enormous quantities is created inserts backbone network, adjust the quantity of data network analyzer simulation CE, test the performance capability index of described Devices to test, wherein, described performance capability is designated as the medium access address MAC table capacity of Devices to test.
5, as claim 1,2 or 3 described methods, it is characterized in that,
The L2VPN that described data network analyzer emulation CE in enormous quantities is created with the different concurrent accesses of access way inserts backbone network.
6, a kind of Performance Test System of double-layer virtual special access backbone network is characterized in that, comprises data network analyzer and Devices to test, wherein,
Described data network analyzer, utilize different ports emulation operator's router and provider edge router P+PE and customer edge CE respectively, for the P+PE of institute's emulation carries out parameter configuration, and create the two-layer virtual special use in conjunction with described Devices to test and insert the L2VPN backbone network, emulation user concurrent in enormous quantities inserts the L2VPN backbone network of being created;
Described Devices to test is used to the P+PE of institute's emulation and CE equipment to carry out exchanges data, and the line parameter of going forward side by side configuration is to create the special-purpose L2VPN of access of two-layer virtual backbone network.
7, system as claimed in claim 6 is characterized in that,
The P+PE equipment that described data network analyzer is emulation carries out parameter configuration and refers to, described data network analyzer emulation unicast routing protocol, be used to announce the loopback address Loopback route between described Devices to test and the emulation PE, emulation mark distribution LDP agreement, it is mutual to be used to tunnel and the outer layer label created between described Devices to test and the emulation PE, create virtual private network, be used for mutual vpn label with the VPN of described Devices to test.
8, system as claimed in claim 6 is characterized in that,
Described Devices to test carries out parameter configuration and refers to, described Devices to test carries out the configuration of unicast routing protocol, the configuration of the configuration of multiprotocol label switching MPLS and virtual special local area network VPLS forwarding instance.
9, as claim 6,7 or 8 described systems, it is characterized in that,
Described data network analyzer also is used to adjust the CE quantity of simulation, and to test the performance capability index of described Devices to test, wherein, described performance capability is designated as the medium access address MAC table capacity of Devices to test.
10, as claim 6,7 or 8 described systems, it is characterized in that,
The L2VPN that described data network analyzer emulation CE in enormous quantities is created with the different concurrent accesses of access way inserts backbone network.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102904771A (en) * | 2012-09-25 | 2013-01-30 | 华为技术有限公司 | Network testing device and method thereof |
| CN110798539A (en) * | 2019-10-16 | 2020-02-14 | 中盈优创资讯科技有限公司 | Method and system for determining hanging-down base station of IPRAN network equipment |
| CN111934925A (en) * | 2020-07-31 | 2020-11-13 | 上海地面通信息网络股份有限公司 | Two-layer Ethernet circuit simulation service system based on IP/MPLS public network |
| CN112187569A (en) * | 2020-09-14 | 2021-01-05 | 南瑞集团有限公司 | Multicast VPN (virtual private network) testing system and method in NG (NG) mode of electric power |
| CN112866036A (en) * | 2021-02-24 | 2021-05-28 | 鹏城实验室 | Network flow simulation method and system of cloud computing platform and computer storage medium |
| CN115396336A (en) * | 2022-08-01 | 2022-11-25 | 南京网元通信技术有限公司 | MPLS VPN (Multi-protocol Label switching virtual private network) passenger gathering special line active test method based on software simulation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180583C (en) * | 2001-09-03 | 2004-12-15 | 华为技术有限公司 | Realizing method and system of special network in wideband virtual network |
| US7668178B2 (en) * | 2005-08-30 | 2010-02-23 | Cisco Technology, Inc. | Methods and apparatus for implementing VPN services |
| CN1761253A (en) * | 2005-11-03 | 2006-04-19 | 上海交通大学 | Online experimental method for MPLS VPN of supporting concurrent access of multiple users in large scale |
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- 2009-03-03 CN CN2009101263268A patent/CN101494574B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102904771A (en) * | 2012-09-25 | 2013-01-30 | 华为技术有限公司 | Network testing device and method thereof |
| CN102904771B (en) * | 2012-09-25 | 2015-06-17 | 华为技术有限公司 | Network testing device and method thereof |
| CN110798539A (en) * | 2019-10-16 | 2020-02-14 | 中盈优创资讯科技有限公司 | Method and system for determining hanging-down base station of IPRAN network equipment |
| CN110798539B (en) * | 2019-10-16 | 2022-02-01 | 中盈优创资讯科技有限公司 | Method and system for determining hanging-down base station of IPRAN network equipment |
| CN111934925A (en) * | 2020-07-31 | 2020-11-13 | 上海地面通信息网络股份有限公司 | Two-layer Ethernet circuit simulation service system based on IP/MPLS public network |
| CN112187569A (en) * | 2020-09-14 | 2021-01-05 | 南瑞集团有限公司 | Multicast VPN (virtual private network) testing system and method in NG (NG) mode of electric power |
| CN112187569B (en) * | 2020-09-14 | 2022-05-10 | 南瑞集团有限公司 | Multicast VPN (virtual private network) testing system and method in NG (NG) mode of electric power |
| CN112866036A (en) * | 2021-02-24 | 2021-05-28 | 鹏城实验室 | Network flow simulation method and system of cloud computing platform and computer storage medium |
| CN115396336A (en) * | 2022-08-01 | 2022-11-25 | 南京网元通信技术有限公司 | MPLS VPN (Multi-protocol Label switching virtual private network) passenger gathering special line active test method based on software simulation |
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