CN103051495A - Method and system for determining carrying capacity of network service - Google Patents
Method and system for determining carrying capacity of network service Download PDFInfo
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- CN103051495A CN103051495A CN2012105555318A CN201210555531A CN103051495A CN 103051495 A CN103051495 A CN 103051495A CN 2012105555318 A CN2012105555318 A CN 2012105555318A CN 201210555531 A CN201210555531 A CN 201210555531A CN 103051495 A CN103051495 A CN 103051495A
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Abstract
The invention discloses a method and a system for determining the carrying capacity of network service. The method comprises the following steps of: setting SHDSL (Symmetric High bit rate Digital Subscriber Line) test parameters containing SHDSL line bandwidth, service bandwidth and the expected distance of an SHDSL; according to the test parameters, carrying out the service carrying test on the SHDSL to obtain the test value of the SHDSL; according to the test parameters and the test value, calculating the service carrying capacity value of the SHDSL; and according to the service carrying capacity value, determining the corresponding carrying capacity of the SHDSL. The method and the system have the beneficial effects that the preset parameter is tested in the SHDSL to obtain the test value, the service capacity value of the SHDSL is calculated, and therefore the capacity of the SHDSL for carrying TDM (Time-Division Multiplexing) and ETH (Ethernet) mixed service is determined.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and system of definite Network bearing capacity.
Background technology
G.991.2 symmetrical HDSL High-Speed Digital Subscriber Line SHDSL (Symmetric High bit rate Digital Subscriber Line) follows ITU-T and consensus standard G.994.2, adopt the coded systems such as TC-PAM16/32/64, encoding, more high transmission speed is faster, can be used in the multiple communications types such as voice, data and video.The transmission range of SHDSL is directly proportional with the wire diameter of subscriber's telephone line (being thickness), and the thicker transmission range of telephone wire is far away, and the thinner transmission range of telephone wire is nearer.Transmission range and the transmission bandwidth of SHDSL are inversely proportional to, and more the high-transmission distance is nearer for the transmission bandwidth of requirement, and more the low transmission distance is far away for the transmission bandwidth of requirement.The proposition of SHDSL technology is of long duration, but to ITU issue in February calendar year 2001 G.SHDSL (G.991.2) standard, the SHDSL technology just is able to full-fledged, and can be implemented in any mixed insertion of realization and ADSL or VDSL business board in Digital Subscriber Line Access Multiplexer equipment and the broad band and narrow band integrated access equipment.SHDSL technology and ADSL (Asymmetric Digital Subscriber Line) ADSL(Asymmetric Digital Subscriber line) or high-speed digital subscriber line VDSL(Very-high-bit-rate Digital Subscriber loop) difference of technology is, can not provide simultaneously voice service during data services, what support is that bi-directional symmetrical is professional, and therefore the private line service of high performance-price ratio mainly is provided towards medium-sized and small enterprises or business user, high-grade family.In the real world applications, the user knows about SHDSL circuit carrying Ethernet ETH(Ethernet) business and the professional ability of time division multiplexing tdm (Time-Division Multiplexing), the especially demand of the ability of ETH business and TDM mix of traffic business.
Summary of the invention
The method and system that the purpose of this invention is to provide a kind of definite Network bearing capacity, definite with the ability that realizes and TDM mix of traffic business professional to ETH.
The objective of the invention is to be achieved through the following technical solutions:
The embodiment of the invention provides a kind of method of definite Network bearing capacity, and step is as follows:
Symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter is set, and described test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit, and the desired distance of described SHDSL circuit is the distance between first end node and the second end node;
According to institute's test parameter, described SHDSL circuit is carried out the service bearer test, obtain the test value of described SHDSL circuit;
Calculate the service bearer ability value of described SHDSL circuit according to described test parameter and test value;
Determine bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value.
Preferably, described according to institute's test parameter, described SHDSL circuit is carried out the service bearer test, obtain the test value of described SHDSL circuit, step is as follows:
By changing described desired distance so that Ethernet ETH business not packet loss and TDM business without error code;
Obtain under the current desired distance, corresponding first end node and signal to noise ratio, Line Attenuation value, the time delay of described TDM business and the speed of described SHDSL circuit of the second end node are as the test value of described SHDSL circuit.
Preferably, described according to institute's test parameter, described SHDSL circuit is carried out the service bearer test, obtain the test value of described SHDSL circuit, step is as follows:
Survey the second end node by first end node far-end corresponding under the current desired distance, until Ethernet ETH business not packet loss and TDM business without error code;
Obtain under the current desired distance, the time delay of the signal to noise ratio of described first end node and the second end node, Line Attenuation value, described TDM business and the speed of described SHDSL circuit are as the test value of described SHDSL circuit.
Preferably, describedly calculate the service bearer ability value of described SHDSL circuit according to described test parameter and test value, comprising:
Signal to noise ratio, the first and second Line Attenuation values, the time delay of described TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of described SHDSL circuit according to described the first and second end nodes;
According to the first line bandwidth of described SHDSL line bandwidth, ETH business, the second line bandwidth of TDM business, the desired distance of SHDSL circuit, described SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value.
Preferably, described SHDSL link performance value computing formula is:
M=（V/W）*100%+[(SNR1-A1/x)+(SNR2-A2/x)]/2
Wherein, M is described SHDSL link performance value, V is the speed of described SHDSL circuit, W is described SHDSL line bandwidth, x is the desired distance of described SHDSL circuit, and SNR1 is the signal to noise ratio of described first end node, and SNR2 is the signal to noise ratio of described the second end node, A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
Preferably, described ETH bandwidth peak use rate formula is as follows:
η=[L/(L+20)]*100%
η is described ETH bandwidth peak use rate, and L is described ETH frame length.
Preferably, describedly calculate the service bearer ability value of described SHDSL circuit according to described test parameter and test value, comprising:
According to described first end node and the time delay of signal to noise ratio the second end node, Line Attenuation value, described TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of described SHDSL circuit;
According to the first line bandwidth of described SHDSL line bandwidth, ETH business, the second line bandwidth of TDM business, described SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value.
Preferably, described SHDSL link performance value computing formula is:
M=（V/W）*100%+[(SNR1+1/A1)+(SNR2+1/A2)]/2
Wherein, M is described SHDSL link performance value, V is the speed of described SHDSL circuit, W is described SHDSL line bandwidth, SNR1 is the signal to noise ratio of described first end node, SNR2 is the signal to noise ratio of described the second end node, and A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
Preferably, described ETH bandwidth peak use rate formula is as follows:
η=[L/(L+20)]*100%
η is described ETH bandwidth peak use rate, and L is described ETH frame length.
Preferably, the service bearer ability value computing formula of described SHDSL circuit is as follows:
Y=M-N*（WE1/W）+η
Wherein, Y is the service bearer ability value of described SHDSL circuit, and WE1 is described service bandwidth.
Preferably, describedly determine bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value, comprising:
When described service bearer ability value between (0,5) time, described SHDSL circuit is not suitable for transport service;
When described service bearer ability value scope [5,10) between the time, it is professional that described SHDSL circuit is fit to carrying TDM;
When described service bearer ability value scope [10,30) between the time, it is professional that described SHDSL circuit is fit to the common ETH of carrying;
When described service bearer ability value scope 30 when above, described SHDSL circuit is fit to carrying and requires high to service stability and professional to the less demanding ETH of transmission range.
Embodiment of the invention beneficial effect is as follows: by the test of carrying out predefined parameter in the SHDSL circuit is obtained test value, and calculate the professional ability value of SHDSL, thereby determine the ability of SHDSL carrying TDM and ETH mixed service.
Preferred embodiment of the present invention provides a kind of system of definite Network bearing capacity, comprising:
Setting unit, be used for arranging symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter, described test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit, and the desired distance of described SHDSL circuit is the distance between first end node and the second end node;
Test cell is used for according to institute's test parameter, and described SHDSL circuit is carried out the service bearer test, obtains the test value of described SHDSL circuit;
Computing unit is used for calculating according to described test parameter and test value the service bearer ability value of described SHDSL circuit;
The bearing capacity determining unit is used for determining bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value.
Embodiment of the invention beneficial effect is as follows: by the test of carrying out predefined parameter in the SHDSL circuit is obtained test value, and calculate the professional ability value of SHDSL, thereby determine the ability of SHDSL carrying TDM and ETH mixed service.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention one described method;
Fig. 2 is a kind of SHDSL line test topological diagram of the embodiment of the invention two described methods;
Fig. 3 is the another kind of SHDSL line test topological diagram of the embodiment of the invention two described methods;
Fig. 4 is the structure chart of the embodiment of the invention three described systems.
Embodiment
Be elaborated below in conjunction with the implementation procedure of Figure of description to the embodiment of the invention.
The embodiment of the invention one provides a kind of method of definite Network bearing capacity, and shown in Fig. 1, step is as follows:
Step S101 arranges symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter, and test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit, and the desired distance of SHDSL circuit is the distance between first end node and the second end node;
Step S102 according to institute's test parameter, carries out the service bearer test to the SHDSL circuit, obtains the test value of SHDSL circuit;
Step S103 is according to the service bearer ability value of test parameter and test value calculating SHDSL circuit;
Step S104 determines the bearing capacity that the SHDSL circuit is corresponding according to the service bearer ability value.
Preferably, under the manual test pattern, according to institute's test parameter, the SHDSL circuit is carried out the service bearer test, obtain the test value of SHDSL circuit, step is as follows:
Step 1, by changing desired distance so that Ethernet service not packet loss and TDM business without error code;
Preferably, under the adaptive testing pattern, according to institute's test parameter, the SHDSL circuit is carried out the service bearer test, obtain the test value of SHDSL circuit, step is as follows:
Step 1 is surveyed the second end node by first end node far-end corresponding under the current desired distance, until Ethernet service not packet loss and TDM business without error code;
Preferably, the service bearer ability value according to test parameter and test value calculating SHDSL circuit comprises:
Signal to noise ratio, the first and second Line Attenuation values, the time delay of TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of SHDSL circuit according to the first and second end nodes;
The first line bandwidth, the second line bandwidth of TDM business, the desired distance of SHDSL circuit, SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value according to SHDSL line bandwidth, Ethernet service.
Preferably, SHDSL link performance value computing formula such as formula 1:
M=（V/W）*100%+[(SNR1-A1/x)+(SNR2-A2/x)]/2 （1）
Wherein, M is SHDSL link performance value, V is the speed of SHDSL circuit, W is the SHDSL line bandwidth, x is the desired distance of SHDSL circuit, and SNR1 is the signal to noise ratio of first end node, and SNR2 is the signal to noise ratio of the second end node, A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
Preferably, ETH bandwidth peak use rate formula such as formula 2:
η=[L/(L+20)]*100% （2）
η is ETH bandwidth peak use rate, and L is the ETH frame length.
Preferably, the service bearer ability value according to test parameter and test value calculating SHDSL circuit comprises:
According to the first end node and the time delay of signal to noise ratio the second end node, Line Attenuation value, TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of SHDSL circuit;
The first line bandwidth, the second line bandwidth of TDM business, SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value according to SHDSL line bandwidth, Ethernet service.
Preferably, SHDSL link performance value computing formula such as formula 3:
M=（V/W）*100%+[(SNR1+1/A1)+(SNR2+1/A2)]/2 （3）
Wherein, M is SHDSL link performance value, and V is the speed of SHDSL circuit, W is the SHDSL line bandwidth, and SNR1 is the signal to noise ratio of first end node, and SNR2 is the signal to noise ratio of the second end node, A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
Preferably, ETH bandwidth peak use rate formula such as formula 4:
η=[L/(L+20)]*100% （4）
η is ETH bandwidth peak use rate, and L is the ETH frame length.
Preferably, the service bearer ability value computing formula of SHDSL circuit such as formula 5:
Y=M-N*（WE1/W）+η （5）
Wherein, Y is the service bearer ability value of SHDSL circuit, and WE1 is service bandwidth.
Preferably, determine the bearing capacity that the SHDSL circuit is corresponding according to the service bearer ability value, comprising:
When the service bearer ability value between (0,5) time, the SHDSL circuit is not suitable for transport service;
When service bearer ability value scope [5,10) between the time, it is professional that the SHDSL circuit is fit to carrying TDM;
When service bearer ability value scope [10,30) between the time, it is professional that the SHDSL circuit is fit to the common ETH of carrying;
When service bearer ability value scope 30 when above, the SHDSL circuit is fit to carrying and requires high to service stability and professional to the less demanding ETH of transmission range.
Embodiment of the invention beneficial effect is as follows: by the test of carrying out predefined parameter in the SHDSL circuit is obtained test value, and calculate the professional ability value of SHDSL, thereby determine the ability of SHDSL carrying TDM and ETH mixed service.
The embodiment of the invention two, the topological diagram that provides SHDSL circuit bearing capacity to test, as shown in Figures 2 and 3.Among Fig. 2, comprise first end node 1, the second end node 2, DSL circuit emulation instrument 3, Error Detector 4, Error Detector 5 and ETH tester 6.Among Fig. 3, comprise first end node 1, the second end node 2, DSL circuit emulation instrument 3, Error Detector 4, G.SHDSL circuit looper 5 and ETH tester 6.Adjusting TDM and ETH service bandwidth by manual test or adaptive testing tests, adjusts in the SHDSL circuit distance of first end node 1 and the second end node 2 and test etc., thereby obtain the professional ability value of SHDSL circuit, and determine the business that SHDSL can carry according to the professional ability value.
The embodiment of the invention three provides a kind of system of definite Network bearing capacity, as shown in Figure 4, comprising:
Setting unit 401, be used for arranging symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter, test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit, and the desired distance of SHDSL circuit is the distance between first end node and the second end node;
Bearing capacity determining unit 404 is used for determining the bearing capacity that the SHDSL circuit is corresponding according to the service bearer ability value.
Embodiment of the invention beneficial effect is as follows: by the test of carrying out predefined parameter in the SHDSL circuit is obtained test value, and calculate the professional ability value of SHDSL, thereby determine the ability of SHDSL carrying TDM and ETH mixed service.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. the method for a definite Network bearing capacity is characterized in that, step is as follows:
Symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter is set, and described test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit;
According to institute's test parameter, described SHDSL circuit is carried out the service bearer test, obtain the test value of described SHDSL circuit;
Calculate the service bearer ability value of described SHDSL circuit according to described test parameter and test value;
Determine bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value.
2. the method for claim 1 is characterized in that, and is described according to institute's test parameter, and described SHDSL circuit is carried out the service bearer test, obtains the test value of described SHDSL circuit, and step is as follows:
By changing described desired distance so that Ethernet ETH business not packet loss and TDM business without error code;
Obtain under the current desired distance, corresponding first end node and signal to noise ratio, Line Attenuation value, the time delay of described TDM business and the speed of described SHDSL circuit of the second end node are as the test value of described SHDSL circuit.
3. the method for claim 1 is characterized in that, and is described according to institute's test parameter, and described SHDSL circuit is carried out the service bearer test, obtains the test value of described SHDSL circuit, and step is as follows:
Survey the second end node by first end node far-end corresponding under the current desired distance, until Ethernet ETH business not packet loss and TDM business without error code;
Obtain under the current desired distance, the time delay of the signal to noise ratio of described first end node and the second end node, Line Attenuation value, described TDM business and the speed of described SHDSL circuit are as the test value of described SHDSL circuit.
4. method as claimed in claim 2 is characterized in that, describedly calculates the service bearer ability value of described SHDSL circuit according to described test parameter and test value, comprising:
Signal to noise ratio, the first and second Line Attenuation values, the time delay of described TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of described SHDSL circuit according to described the first and second end nodes;
According to the first line bandwidth of described SHDSL line bandwidth, ETH business, the second line bandwidth of TDM business, the desired distance of SHDSL circuit, described SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value.
5. method as claimed in claim 4 is characterized in that, described SHDSL link performance value computing formula is:
M=（V/W）*100%+[(SNR1-A1/x)+(SNR2-A2/x)]/2
Wherein, M is described SHDSL link performance value, V is the speed of described SHDSL circuit, W is described SHDSL line bandwidth, x is the desired distance of described SHDSL circuit, and SNR1 is the signal to noise ratio of described first end node, and SNR2 is the signal to noise ratio of described the second end node, A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
6. method as claimed in claim 5 is characterized in that, described ETH bandwidth peak use rate formula is as follows:
η=[L/(L+20)]*100%
η is described ETH bandwidth peak use rate, and L is described ETH frame length.
7. method as claimed in claim 3 is characterized in that, describedly calculates the service bearer ability value of described SHDSL circuit according to described test parameter and test value, comprising:
According to described first end node and the time delay of signal to noise ratio the second end node, Line Attenuation value, described TDM business and rate calculations SHDSL link performance value, ETH bandwidth peak use rate, the TDM service feature value of described SHDSL circuit;
According to the first line bandwidth of described SHDSL line bandwidth, ETH business, the second line bandwidth of TDM business, described SHDSL link performance value, ETH bandwidth peak use rate, TDM service feature value computing service bearing capacity value.
8. method as claimed in claim 7 is characterized in that, described SHDSL link performance value computing formula is:
M=（V/W）*100%+[(SNR1+1/A1)+(SNR2+1/A2)]/2
Wherein, M is described SHDSL link performance value, V is the speed of described SHDSL circuit, W is described SHDSL line bandwidth, SNR1 is the signal to noise ratio of described first end node, SNR2 is the signal to noise ratio of described the second end node, and A1 is the Line Attenuation value of the first circuit, and A2 is the Line Attenuation value of the second circuit.
9. method as claimed in claim 8 is characterized in that, described ETH bandwidth peak use rate formula is as follows:
η=[L/(L+20)]*100%
η is described ETH bandwidth peak use rate, and L is described ETH frame length.
10. such as claim 6 or 9 each described methods, it is characterized in that the service bearer ability value computing formula of described SHDSL circuit is as follows:
Y=M-N*（WE1/W）+η
Wherein, Y is the service bearer ability value of described SHDSL circuit, and WE1 is described service bandwidth.
11. method as claimed in claim 10 is characterized in that, describedly determines bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value, comprising:
When described service bearer ability value between (0,5) time, described SHDSL circuit is not suitable for transport service;
When described service bearer ability value scope [5,10) between the time, it is professional that described SHDSL circuit is fit to carrying TDM;
When described service bearer ability value scope [10,30) between the time, it is professional that described SHDSL circuit is fit to the common ETH of carrying;
When described service bearer ability value scope 30 when above, described SHDSL circuit is fit to carrying and requires high to service stability and professional to the less demanding ETH of transmission range.
12. the system of a definite Network bearing capacity is characterized in that, comprising:
Setting unit, be used for arranging symmetrical HDSL High-Speed Digital Subscriber Line SHDSL test parameter, described test parameter comprises the desired distance of SHDSL line bandwidth, service bandwidth and SHDSL circuit, and the desired distance of described SHDSL circuit is the distance between first end node and the second end node;
Test cell is used for according to institute's test parameter, and described SHDSL circuit is carried out the service bearer test, obtains the test value of described SHDSL circuit;
Computing unit is used for calculating according to described test parameter and test value the service bearer ability value of described SHDSL circuit;
The bearing capacity determining unit is used for determining bearing capacity corresponding to described SHDSL circuit according to described service bearer ability value.
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| US20020067802A1 (en) * | 2000-12-04 | 2002-06-06 | Smith David R. | System and method for single-ended line analysis for qualification and mapping |
| CN1549467A (en) * | 2003-05-10 | 2004-11-24 | 华为技术有限公司 | Testing apparatus and method for XDSL |
| CN1897545A (en) * | 2005-07-11 | 2007-01-17 | 上海欣泰通信技术有限公司 | Method and system for testing asymmetric digital user outgoing rate |
| CN1968155A (en) * | 2005-11-17 | 2007-05-23 | 上海欣泰通信技术有限公司 | Single-end evaluation method for ADSL bearing capacity |
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2012
- 2012-12-19 CN CN201210555531.8A patent/CN103051495B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067802A1 (en) * | 2000-12-04 | 2002-06-06 | Smith David R. | System and method for single-ended line analysis for qualification and mapping |
| CN1549467A (en) * | 2003-05-10 | 2004-11-24 | 华为技术有限公司 | Testing apparatus and method for XDSL |
| CN1897545A (en) * | 2005-07-11 | 2007-01-17 | 上海欣泰通信技术有限公司 | Method and system for testing asymmetric digital user outgoing rate |
| CN1968155A (en) * | 2005-11-17 | 2007-05-23 | 上海欣泰通信技术有限公司 | Single-end evaluation method for ADSL bearing capacity |
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