CN100372320C - Method and system for detecting service quality in next generation network - Google Patents
Method and system for detecting service quality in next generation network Download PDFInfo
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- CN100372320C CN100372320C CNB2006100329137A CN200610032913A CN100372320C CN 100372320 C CN100372320 C CN 100372320C CN B2006100329137 A CNB2006100329137 A CN B2006100329137A CN 200610032913 A CN200610032913 A CN 200610032913A CN 100372320 C CN100372320 C CN 100372320C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/11—Identifying congestion
- H04L47/115—Identifying congestion using a dedicated packet
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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
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5009—Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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Abstract
The present invention belongs to the field of communication, which provides a method and a system for testing the service quality in a next generation network. The next generation network comprises a network management device, a media gateway controller which is connected with the network management device, and media gateways which are connected with the media gateway controller. The method comprises steps: a test command is sent to the media gateway controller by the network management device; a test control instruction is sent to the media gateways which take part in the test by the media gateway controller according to the test command, and the media gateways which take part in the test are controlled to establish test channels; test service flows among the media gateways which take part in the test are mutually received and sent through the test channels, and service quality parameters are collected and are reported to the media gateway controller; the service quality parameters are reported to the network management device by the media gateway controller, and test results are processed by the network management device. The present invention can reflect the bearing quality of actual networks.
Description
Technical field
The invention belongs to the communications field, relate in particular to the method and system of in the next generation network quality of service of the network carrying being carried out the active test.
Background technology
Next generation network (Next Generation Network, NGN) be the brand-new network that integrates speech, data, fax and video traffic, be to be carrying, the fixedly integrated services network of multiple business such as mobile voice, data and video traffic is provided with the packet network.With the speech business is example, and in the NGN system that with the IP network is the core bearer network, the IP of speech business bag is to propagate in IP network according to the mode of doing one's best, so the measurement of network carrying quality of service becomes a very important specification requirement.
At present, (Quality of Service, QOS) the situation method of testing comprises two kinds of initiatively test (or intrusive mood test) and Passive Tests (or non-intrusion type test) to the quality of service of bearer network.Passive Test is meant the practical business of not invading on the network, just practical business is monitored, and obtains test data by the analysis to practical business stream.Initiatively test is a kind of test of invading network, test service stream need be injected network, and obtain test data by the analysis to test service stream.
As shown in Figure 1, in initiatively testing, two test points are placed near the IAD that participates in test nearby, test point provides the IP of packet outlet, test service stream is with grouping RTP (Real-timeTransport Protocol, RTP) injection of the form of stream network, wherein call server (Call Server, CS) be responsible for test call is controlled, S represents the access point of test point on network.Carry out active test between two test points, send mutually, the acceptance test Business Stream, and obtain relevant QOS parameter by the analysis to test service stream, with reporting parameters test and management center, handle data at the test and management center again.
The basis of above-mentioned testing scheme is that hypothesis test service stream is walked identical routed path with practical business stream in bearer network, in fact at present a lot of gateways provide grade of service classification feature in the outlet of RTP Business Stream, therefore for the bearer network of supporting that differentiated services is handled, in fact do not walk different routed paths through the test service stream of classification with the Business Stream of process classification, test service stream can not reflect the working condition of practical business stream.Simultaneously, this scheme need be built extra test network, needs external testing equipment or instrument and control centre, and the cost costliness is installed inconvenient.(Integrated Access Device, IAD), this defective is particularly outstanding for the integrated access equipment of smallest number port.
Summary of the invention
The object of the present invention is to provide the method for testing of quality of service in a kind of next generation network, be intended to solve in the prior art in the active test of quality of service, test service stream can not truly reflect the network carrying quality condition of practical business stream, cause test result inaccurate, realize the problem that cost is high simultaneously.
Another object of the present invention is to provide the test macro of quality of service in a kind of next generation network.
The present invention realizes like this, the method of testing of quality of service in a kind of next generation network, described next generation network comprises network management device, the Media Gateway Controller that is connected with described network management device, and the media gateway that is connected with described Media Gateway Controller, described method comprises the steps:
A. network management device issues test command to Media Gateway Controller;
B. Media Gateway Controller issues the test control command according to described test command to the media gateway that participates in test, and control participates in the media gateway of test and sets up test channel;
C. receive and dispatch test service stream mutually by described test channel between the media gateway that participates in testing, collect QoS parameter, and described QoS parameter is reported Media Gateway Controller;
D. Media Gateway Controller reports network management device with described QoS parameter, and network management device is handled described QoS parameter.
Described test command includes coding decoder Codec, packaging time length, the length of testing speech that IP address, test channel number, the test of soft switch adopted under the terminal iidentification TID of the calling and called media gateway that participates in test, the called media gateway and regularly reports duration information.
The test terminal iidentification TID information that includes the media gateway of described participation test in the described test control command.
Described test channel is one or more.
The test macro of quality of service in a kind of next generation network, described next generation network comprises network management device, the Media Gateway Controller that is connected with described network management device, and the media gateway that is connected with described Media Gateway Controller, described system comprises:
The test and management unit is arranged at network management device, is used for issuing test command to Media Gateway Controller, and the QoS parameter that the receiving media gateway controller reports is handled described QoS parameter;
Unit of testing and controlling, be arranged at Media Gateway Controller, be used for issuing the test control command to the media gateway that participates in test according to described test command, the control media gateway is set up test channel, collect the QoS parameter of medium gateway to report, and described QoS parameter is reported the test and management unit;
The test operation unit is arranged at media gateway, is used for receiving and dispatching test service stream mutually by described test channel, collects QoS parameter, and described QoS parameter is reported unit of testing and controlling.
Described test command includes coding decoder Codec, packaging time length, the length of testing speech that IP address, test channel number, the test of soft switch adopted under the terminal iidentification TID of the calling and called media gateway that participates in test, the called media gateway and regularly reports duration information.
The test terminal iidentification TID information that includes the media gateway of described participation test in the described test control command.
Described test channel is one or more.
The present invention builds test channel under the control of soft switch, media gateway is sent out test service stream mutually, and test result can reflect the network carrying quality of practical business stream.Simultaneously, do not need external any equipment, realize that cost is low, the test department management side just, easy maintenance does not need to take the actual port resource of media gateway.
Description of drawings
Fig. 1 realizes the initiatively system framework figure of test in the prior art;
Fig. 2 realizes the system framework figure that quality of service is initiatively tested among the present invention;
Fig. 3 is the interaction diagrams of Media Gateway Controller and media gateway when testing among the present invention;
Fig. 4 is the system construction drawing of realization measure of the quality of service provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention's media gateway under the control of soft switch is finished the active test of quality of service, the audio call that complete simulation is real, test service stream and the routed path of practical business stream in the IP bearer network are identical, the Qos test result of test service stream can reflect the network quality situation that practical business stream is flowed through truly, by the analysis to test service stream, the accurate level and the effect of IP load-bearing network quality in the time of can testing out actual motion.
As shown in Figure 2, the present invention is based on parts and interface in the existing NGN framework, do not need to increase new hardware and support new agreement, wherein soft switch is called " Media Gateway Controller " again.
Network management device (webmaster) plays test center, and (Man-Machine Language MML) initiates test command to soft switch, and test result is handled by man-machine language by user/attendant.Soft switch is finished the calling that media gateway is initiatively tested and is connected.Media gateway is responsible for receiving and dispatching test service stream, collects the various bearer network qos parameters that obtain in the initiatively test.
Supervision test software in the network management device issues test command and gives soft switch, terminal iidentification (the Terminal Identification that comprises the calling and called media gateway that participates in test in the test command, TID), Codec (Coder/Decoder, coding decoder) that the IP address of soft switch, test channel number, test are adopted under the called media gateway and packaging time length, length of testing speech, regularly report duration information.
After the test command of network management device is received in soft switch, resolve into the networking operation that participates in the media gateway of test to two.The media gateway that H.248 soft switch is passed through or MGCP agreement control participation is tested, in message H.248, soft switch issues test TID, media gateway learns that the rtp streaming in this session is to be used for test after receiving this TID, network according to called mode, build test channel, transmitting-receiving test service stream is collected the soft switch of QOS reporting parameters.The detecting informations such as QOS parameter of medium gateway to report are collected in soft switch, by test port report network management equipment.Network management device shows test results to the user in the GUI mode, can pass through broken line graph, block diagram etc., shows different credit ratings with different colours.
Participating in test with media gateway 1,2 is example, between two media gateway 1,2 and soft switch 1, agreement physical terminal identifier (Identification, ID) size is within (0x5fff-0x5000) scope, represent that this terminal is used for QoS and initiatively tests, these Termination ID corresponding physical terminals do not participate in service call, do not distribute actual port resource.
Receive the test command of network management device when soft switch 1 after, test command being resolved into the networking operation that participates in media gateway 1 with the media gateway 2 of test to two, can be that 1～n test channel initiated networking simultaneously or successively initiated networking.
Send out test data mutually by the test channel of building between the media gateway 1,2, tested speech exemplar for example, this voice exemplar can just reside in medium gateway internal before equipment dispatches from the factory, as G.711-20ms, G.723-30ms, G.729-20ms waiting form, synthetic by all kinds of medium gateway internals.Access media gateway can adopt " tested speech file " (as melodious voice) of playing customization, and Trunk Media Gateway can adopt the mode of broadcast " tested speech frame ", and playing duration is set by control command.
Tested media gateway 1 and media gateway 2 are extracted relevant QOS parameter after receiving this test service stream from rtp streaming, as time delay, packet loss, shake etc., regularly test result is reported soft switch, and when conversation end total statistics is reported soft switch 1.Soft switch 1 arrangement back test interface reports network management device, by network management device test result is shown, and the part that exceeds setting threshold can adopt alarm or different colours mode to show.
Media gateway can be by nt bag, rtp bag, the tdmc bag of H.248.1 definition, and the Qos statistical parameter of definition such as the rtcpxr of H.248.30 definition wraps, xrbm bag arrives soft switch with the QOS reporting parameters, for the media gateway that realizes the MGCP agreement, also can select corresponding connection parameter, specifically report which content to select according to actual conditions or configuring condition by media gateway.The typical statistical parameter that reports is as follows:
Rtp/ps=1245; Packets sent, the RTP bag number of all transmissions when this calling begins to audit;
Nt/os=62345; Octets sent, the byte number of the RTP bag of all transmissions when this calling begins to audit;
Rtp/pr=780; Packets received, the RTP bag number of all receptions when this calling begins to audit;
Nt/or=45123; Octets received, the byte number of the RTP bag of all receptions when this calling begins to audit;
Rtp/pl=10; %packets lost calls out the current statistical value of packet loss at this;
Rtp/jit=27; Call out the current statistical value of delay variation at this;
Rtp/delay=240; Call out the current statistical value of loop time delay at this;
Nt/dur=40000; In millisecond, this calls out the current duration;
Fig. 3 shows when carrying out initiatively testing, the interaction flow of Media Gateway Controller (MGC) and media gateway 1 and media gateway 2, and C1/T1 wherein, C2/T2 is different context (Context) ID and terminal (Termination) ID of acute pyogenic infection of finger tip respectively:
1, Media Gateway Controller sends ADD (interpolation) order and gives media gateway 1, and order is added termination to context, and physical terminal is 5ff0, the IP end points is $, and issuing media information (Codec, parameters such as packaging time length), stream mode is recvonly (only receiving).
2, media gateway 1 echoes and answers message Reply, has IP end points numbering and local describe (the Media Stream address) chosen.
3, sending out ADD behind the Media Stream address of media gateway controller obtaining 1 orders to media gateway 2, physical terminal is 5ff1, and the IP end points is $, has the Media Stream address information and the media information (Codec of media gateway 2, parameters such as packaging time length), stream mode is recvonly.
4, media gateway 2 echoes and answers message Reply, has IP end points numbering and local describe (the Media Stream address) chosen.
5, send out MODIFY (change) order behind the Media Stream address of media gateway controller obtaining 2 and give media gateway 1, attribute, incident and the signal of order change termination, the Media Stream address information of band media gateway 2, stream mode is sendrecv, requires this IP end points to begin to give out a contract for a project to opposite end media gateway 2.
6, media gateway 1 echoes and answers message Reply.
7, Media Gateway Controller issues MODIFY and orders to media gateway 2, and stream mode is sendrecv
(send and receive) requires this IP end points to begin to give out a contract for a project to opposite end media gateway 1.
8, media gateway 2 echoes and answers message Reply.
9, Media Gateway Controller sends Audit (audit) message to media gateway 1, and all probable values about termination attribute, incident and signal etc. that media gateway is supported are returned in order.
10, media gateway 1 echoes and answers message Reply.
11, Media Gateway Controller sends Audit message to media gateway 2.
12, media gateway 2 echoes and answers message Reply.
13, Media Gateway Controller sends SUB message to media gateway 1, and the termination that order disconnects among the Context connects, and returns the statistical value about termination that adds Context.
14, media gateway 1 echoes and answers message .Reply.
15, Media Gateway Controller sends SUB (deletion) message to media gateway 2.
16, media gateway 2 echoes and answers message Reply.
In the above-mentioned flow process, step 9～12 are communications (can not carry out the processing of actual encoding and decoding in the media gateway on both sides) of testing stream between two media gateway.Media Gateway Controller regularly sends Audit message to media gateway, polling cycle (calling time in the detection) is defined as RTCP Real-time Transport Control Protocol (Real-time Transmission Control Protocol, the RTCP) multiple of detection time by enumerated value as far as possible.Be with equipment temporal information (precision is second) simultaneously in the message the inside of medium gateway to report statistics, guarantee that timing statistics is the most accurate.Two response messages that media gateway is ordered by audit report Media Gateway Controller to the RTCP statistics in the audit cycle.
Test is finished between the media gateway in step 13～16, takes out stitches, deletes the interaction flow of end points.
When the media gateway that participates in test was media gateway 1 and 3, testing process needed soft switch 1 and 2
Fellowship is initiated, and specific implementation is identical with above-mentioned flow process, repeats no more.
For MGCP, the agreement flow process is discerned this calling by special TID (0x5fff ff ff-0x50000000) fully and is test call with H.248 the same substantially.
Starting when initiatively testing as another one embodiment of the present invention, also can not adopt the mode that combines terminal by special TID with RTP, but directly with special RTP terminal of TID sign, media gateway receives that so special TID can be interpreted as it terminal wildcard " $ " of CHOOSE (selection) mode afterwards, distribute a RTP terminal and session then, in response message, return clear and definite session id and RTP Termination ID, soft switch is afterwards only controlled this active test terminal by the RTP Termination ID that distributes, comprise audit, deletion etc., testing process and above-mentioned flow process are similar, repeat no more.
Fig. 4 shows the structure of the system 400 that realizes measure of the quality of service, comprises the test and management unit 401 that is arranged at network management device, the test operation unit 403 that is arranged at the unit of testing and controlling 402 of Media Gateway Controller and is arranged at media gateway.
Test and management unit 401 issues test command to Media Gateway Controller.As mentioned above, comprise the IP address of soft switch under the TID of the calling and called media gateway that participates in test, the called media gateway in the test command, Codec that test channel number, test are adopted and packaging time length, length of testing speech, regularly report information such as duration.
Unit of testing and controlling 402 issues the test control command according to the test command that test and management unit 401 issues to the media gateway that participates in test, and the control media gateway is set up test channel.Test service stream is received and dispatched mutually by the test channel of setting up in test operation unit 403, collects the QOS parameter, for example time delay, shake etc., and the QOS parameter regularly is reported to unit of testing and controlling 402.
The QOS parameter that unit of testing and controlling 402 is collected medium gateway to report is given test and management unit 401 with the QOS reporting parameters.Test and management unit 401 carries out corresponding processes and displays to test result after receiving the QOS parameter that Media Gateway Controller reports.
In the present invention, finish the access media gateway inside that is collected in of QOS parameter, can a plurality of test channel, and different test service ranks, the Business Stream of complete simulation reality is tested, and embodies the quality of service of practical business stream.The startup of test service, the timing collecting and reporting of QOS parameter, the termination of test service is controlled according to MGCP in real time flexibly by soft switch.The soft switch interested QOS parameter of can only auditing, the QOS parameter that also can audit whole.Simultaneously, soft switch can issue the test service stream of different stage by the NGN universal standard, and test service type flexibly is provided.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for testing of quality of service in the next generation network, described next generation network comprises network management device, the Media Gateway Controller that is connected with described network management device, and the media gateway that is connected with described Media Gateway Controller, it is characterized in that described method comprises the steps:
A. network management device issues test command to Media Gateway Controller;
B. Media Gateway Controller issues the test control command according to described test command to the media gateway that participates in test, and control participates in the media gateway of test and sets up test channel;
C. receive and dispatch test service stream mutually by described test channel between the media gateway that participates in testing, collect QoS parameter, and described QoS parameter is reported Media Gateway Controller;
D. Media Gateway Controller reports network management device with described QoS parameter, and network management device is handled described QoS parameter.
2. the method for claim 1, it is characterized in that described test command includes coding decoder Codec, packaging time length, the length of testing speech that IP address, test channel number, the test of soft switch adopted under the terminal iidentification TID of the calling and called media gateway that participates in test, the called media gateway and regularly reports duration information.
3. the method for claim 1 is characterized in that, includes the test terminal iidentification TID information of the media gateway of described participation test in the described test control command.
4. the method for claim 1 is characterized in that, described test channel is one or more.
5. the test macro of quality of service in the next generation network, described next generation network comprises network management device, the Media Gateway Controller that is connected with described network management device, and the media gateway that is connected with described Media Gateway Controller, it is characterized in that described system comprises:
The test and management unit is arranged at network management device, is used for issuing test command to Media Gateway Controller, and the QoS parameter that the receiving media gateway controller reports is handled described QoS parameter;
Unit of testing and controlling, be arranged at Media Gateway Controller, be used for issuing the test control command to the media gateway that participates in test according to described test command, the control media gateway is set up test channel, collect the QoS parameter of medium gateway to report, and described QoS parameter is reported the test and management unit;
The test operation unit is arranged at media gateway, is used for receiving and dispatching test service stream mutually by described test channel, collects QoS parameter, and described QoS parameter is reported unit of testing and controlling.
6. system as claimed in claim 5, it is characterized in that described test command includes coding decoder Codec, packaging time length, the length of testing speech that IP address, test channel number, the test of soft switch adopted under the terminal iidentification TID of the calling and called media gateway that participates in test, the called media gateway and regularly reports duration information.
7. system as claimed in claim 5 is characterized in that, includes the test terminal iidentification TID information of the media gateway of described participation test in the described test control command.
8. system as claimed in claim 5 is characterized in that, described test channel is one or more.
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| CNB2006100329137A CN100372320C (en) | 2006-01-11 | 2006-01-11 | Method and system for detecting service quality in next generation network |
| PCT/CN2006/002479 WO2007079630A1 (en) | 2006-01-11 | 2006-09-21 | A method and system for testing quality of service qos in next generation network ngn |
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| CNB2006100329137A CN100372320C (en) | 2006-01-11 | 2006-01-11 | Method and system for detecting service quality in next generation network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1996938A (en) * | 2006-06-23 | 2007-07-11 | 华为技术有限公司 | A method for monitoring the network service quality of the soft switch load |
| CN101005410A (en) * | 2006-12-15 | 2007-07-25 | 华为技术有限公司 | Detecting method and device for loading state and method and system for distributing loading resource |
| CN101159955B (en) * | 2007-10-19 | 2010-12-08 | 中兴通讯股份有限公司 | Service quality measuring method and system based on media gateway control protocol network |
| CN101159742B (en) * | 2007-11-14 | 2012-12-12 | 华为技术有限公司 | Method and device of implementing test |
| CN101998422B (en) * | 2009-08-18 | 2015-07-22 | 中兴通讯股份有限公司 | Test method and system for data carrying in calling establishing process |
| JP2013539644A (en) * | 2010-09-10 | 2013-10-24 | アルカテル−ルーセント | Dynamic configuration of interconnected devices for measuring performance characteristics in a network |
| CN103430482B (en) * | 2011-03-15 | 2016-12-14 | 慧与发展有限责任合伙企业 | Anticipation network business is quantified the network switching equipment of network level of service available capacity |
| CN109889374B (en) * | 2019-01-22 | 2022-04-26 | 中国联合网络通信集团有限公司 | Bearing evaluation method and device |
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| JPH09270822A (en) * | 1996-03-29 | 1997-10-14 | Nippon Telegr & Teleph Corp <Ntt> | Packet communication path test method |
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| CN1859234A (en) | 2006-11-08 |
| WO2007079630A1 (en) | 2007-07-19 |
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