CN100571138C - The method of assessment transmission network performance - Google Patents
The method of assessment transmission network performance Download PDFInfo
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Abstract
The present invention relates to a kind of method of assessing the transmission network performance.The present invention is in the process of carrying out the transmission network Performance Evaluation, by to obtaining corresponding network security stability parameter and network management maintenance parameters, and the network resource utilization parameter comprises the analysis whether safety and stability degree, resource are optimized use, whether conveniently administer and maintain, obtain the transmission quality of transmission network, i.e. the performance of transmission network.Therefore, the present invention provides the evaluation scheme of the comprehensive system of a cover, precise quantification for transmission network optimization work, can hold the network condition of oneself comprehensively, quantitatively by this evaluation scheme Virtual network operator etc., and can accurately locate shortage (being bottleneck point), the problem points that existing network develops, key factor such as internet security, stability, so that propose small investment, effective network optimization scheme targetedly, optimize transmission network by described prioritization scheme comprehensively.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of method of assessing the transmission network performance.
Background technology
Along with the continuous development and the network complexity of network size improves constantly, the consumer is more and more higher to the requirement of network quality; Transmission network provides the basic network that transmits passage as various telecommunication services, and the quality of its performance plays crucial effects to the quality quality of whole network; The development of transmission network progressively carries out the transition to the stage that scale lays equal stress on both quality and quantity from pursuing network size.
For this reason, usually need assess the performance of transmission network, so that determine according to the performance of transmission network whether the transmission quality of corresponding network can satisfy the needs of transfer of data, and can adjust improvement to network according to the result of Performance Evaluation, so that the transmission quality of transmission network to be provided.Yet industry never has the method for the assessment transmission network performance of a cover system at present, to be used for instructing the optimization of transmission network, to improve the quality of Network Transmission.
At present, the appraisal procedure that is adopted is only for to carry out based on the part evaluation index, and the part evaluation index is existing index in GB and the telecommunications service regulations, comprising: MTTR (Mean Time To Repair), network availability, mean failure intensity, interruption of optical cables failure rate, year equipment failure rate.This shows, because the appraisal procedure that prior art adopted is for to consider to weigh the transmission network performance from the failure rate index of network merely, cause described method to have the shortcoming of two aspects: to be that the failure rate index is the index of " hysteresis " on the one hand, can determine just how many corresponding desired values is after having only generation, and not know how many expectation index values is; Be " uncontrollable " of failure rate index on the other hand, because communication network complexity, each link all has certain inherent failure rate, and these faults are unavoidable (promptly uncontrollable), merely obtains a failure rate and can not play corresponding effect for improving the Network Transmission quality; Simultaneously, also because " hysteresis " property of failure rate index makes these indexs have great uncontrollability concerning the attendant.Therefore, although the method for currently used assessment transmission network performance has advantages such as simple easy operating, but index is improved owing to exist shortcoming with top two aspects to make the failure rate index can not instruct the attendant how to optimize network, in the use of reality, above-mentioned two aspect shortcomings have also limited using of failure rate index and to the directive significance of maintenance work.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method of assessing the transmission network performance, thereby make and more comprehensive performance to assess transmission network, obtaining transmission network Performance Evaluation result more accurately, and make this result have directive significance so that transmission quality to be provided to network administration and maintenance.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of method of assessing the transmission network performance, comprising:
A, obtain network resource utilization parameter, network security stability parameter and network management maintenance parameters respectively, described network resource utilization parameter comprises the quantity that can activate the service, resource effective utilization, described network security stability parameter comprises ARP (network risks point) single interrupting service quantity, service protection ratio, and described network management maintenance parameters comprises the spare part response time;
Each parameter that B, basis are obtained is carried out comprehensive analyzing and processing to resource behaviour in service, network security stability and the network management maintenance of transmission network;
C, determine and obtain the performance of transmission network according to described comprehensive analysis processing result.
Described steps A comprises:
Obtain described network resource utilization parameter, network security stability parameter and network management maintenance parameters by the mode that manual entry, document import automatically or network management center imports automatically.
Among the present invention, the described network resource utilization parameter of steps A further comprises:
RSN (Realizable Service Number, the number of services that can open);
CRE (Cross-connect Resource Efficiency, intersection resource utilization);
TE (Timeslot Efficiency, optical link time interval resource utilization rate);
RE (Resource Efficiency, Internet resources effective utilization);
The described network security stability of steps A parameter further comprises:
ARP (Actual Risk Point, the actual risk point of network);
NOIS (Number of One-time Interrupted Services, single ARP fault causes service disconnection quantity);
SPR (Service Protection Rate, service protection ratio);
SSL (Security ﹠amp; Stabilization Levels, network security stability rank), SSL is the rank that network is determined for the value at the different parameters of transmission network;
The described network management maintenance parameters of steps A comprises:
CMTTR (Contemplated Mean Time to Repair, expection Mean Time To Repair);
CPRT (Contemplated Part Response Time, expection spare part response time);
ADP (Actual Defect Point, the actual problem points number of network), ADP are the quantity of the problem points that influences the transmission network performance that exists in the network.
Described TE comprises: RTE (Realizable Timeslot Efficiency, accessible optical link time interval resource utilization rate), and ATE (Actual Timeslot Efficiency, actual optical link time interval resource utilization rate);
Described RE comprises: RRE (Realizable Resource Efficiency, accessible Internet resources effective utilization), and ARE (Actual Resource Efficiency, actual Internet resources effective utilization).
Among the present invention, the described network resource utilization parameter of steps A also comprises:
TIE (Tributary Interface Effiiciency, tributary port resource utilization);
SRE (Slot Resource Efficiency, groove position resource utilization).
Described SRE comprises:
LSE (Line Slot Efficiency, circuit groove position utilization rate), described circuit groove position is the group groove position, road of two-forty;
TSE (Tributary Slot Efficiency, bypass channel position utilization rate), described bypass channel position is the groove position of other extendible capacity except that the group groove position, road of two-forty;
Described groove position utilization rate is ∑ in the equipment (number of slots that has used * single board service capacity)/∑ (total number of slots amount * groove position volume of business).
Among the present invention, the described network security stability of steps A parameter also comprises:
CFR (Contemplated Failure rate, expection rate of breakdown), CFR carries out the analysis-by-synthesis acquisition for statistical value and network reliability value according to the actual history failure rate;
CU (Contemplated Usability, anticipation network availability), the product that refers to interrupting service quantity and service outage duration in the network is divided by the product of the number of services of opening with the total duration of operation.
Among the present invention, the service protection ratio that the described network security stability of steps A parameter relates to is protected number of services and the ratio of the number of services of opening, and described service protection ratio further comprises:
TPR (Tributary Protection Rate, the branch protection ratio claims);
CPR (Cross-connect Protection Rate, cross board protection ratio);
CLPR (Clock Protection Rate, clock board protection ratio);
OPR (Optical Protection Rate, tabula rasa and tail optical fiber fail safe ratio);
FPR (Fiber Protection Rate, optical cable fail safe ratio);
EPR (Element Protection Rate, tables of equipment station failure protection ratio).
Among the present invention, the described network management maintenance parameters of steps A also comprises:
SOT (Service Offer Time, service fulfillment time), SOT open every business needed average time in the network;
IOST (In Time Offering Service Rate service fulfillment promptness rate), IOST is a satisfactory business proportion of service fulfillment time in the network.
Described step B comprises:
According to each parameter of obtaining ADP, resource use, network protection, network risks and the network failure situation of transmission network are carried out analyzing and processing, obtain corresponding analysis result.
Described step C further comprises:
Determine and obtain the performance of transmission network according to described comprehensive analysis processing result;
Determine to offer the network optimization suggestion of user side according to the performance of described transmission network and the network optimization suggestion that sets in advance, and offer user side.
Described step C also comprises:
With the performance of the transmission network that obtains and optimize suggestion with scheme, the mode of table or chart combination is exported on user terminal and show.
The present invention also provides a kind of system that assesses network transmission performance, comprising:
Parameter obtaining device: be used to obtain network resource utilization parameter, network security stability parameter and network management maintenance parameters;
The parameter analytical equipment: each parameter that is used for parameter obtaining device is obtained is carried out comprehensive analysis processing, and generates the performance index of transmission network;
The network performance output device: the performance index that are used for transmission network that the parameter analytical equipment is generated generate the file of predetermined format, and send to user side.
Described parameter obtaining device comprises that further manual entry module, document import module and/or network management information imports module, and:
Described manual entry module is used for the manual typing of each parameter of manually obtaining, and sends to the parameter analytical equipment;
Described document imports the document files importing that module is used for recording each parameter, and sends to ginseng parameter analytical equipment.
Described parameter analytical equipment further comprises at least one in ADP analysis module, resource operational analysis module, network protection analysis module, network mesh danger analysis module and the network failure analysis module.
By technical scheme that the invention described above provided as can be seen, the present invention is in the process of carrying out the transmission network Performance Evaluation, by obtaining corresponding network security stability parameter and network management maintenance parameters, and the network resource utilization parameter, and weigh the transmission quality of network according to each parameter of obtaining.Therefore, the present invention provides the evaluation scheme of the comprehensive system of a cover, precise quantification for transmission network optimization work, can hold the network condition of oneself comprehensively, quantitatively by this evaluation scheme Virtual network operator etc., and can accurately locate shortage (being bottleneck point), the problem points that existing network develops, key factor such as internet security, stability, so that propose small investment, effective network optimization scheme targetedly, optimize transmission network by described prioritization scheme comprehensively.
Simultaneously, the present invention can also make operator have one to hold comprehensively and accurately, support for networking, maintenance, optimization, business decision etc. provide data to the transmission network of oneself by the appraisal procedure of system, quantification, the network optimization that wherein provided suggestion can also provide reference and guidance at the operation maintenance work of network for operator, for network management provides bigger help and support.
Description of drawings
Fig. 1 is for using the resource user mode schematic diagram that the present invention obtains;
The Network distribution protection figure that Fig. 2 obtains for using the present invention;
Fig. 3 is for using the network protection ratio chart that the present invention obtains;
Fig. 4 is for using the network protection situation schematic diagram that the present invention obtains;
Fig. 5 is for using ARP and the NOIS distribution map that the present invention obtains;
Fig. 6 for use that the present invention obtains based on inhomogeneous optical network fault distribution map;
Fig. 7 is for using the network failure distribution map based on different time that the present invention obtains;
Fig. 8 is the schematic diagram of system of the present invention.
Embodiment
Core concept of the present invention is according to the various parameters that can obtain in the transmission network its performance to be carried out comprehensive analysis and assessment, and according to the resource utilization of described analysis and assessment result optimizing transmission network, the security and stability that improves network, and network management maintenance efficiency.
Method of the present invention specifically comprises three main processing procedures:
(1) obtain the parameter that the transmission network assessment needs, the acquisition process of this parameter can be to obtain from network management center by network, also can obtain by other approach that can obtain relevant parameter;
(2) carry out the analysis of transmission network performance according to each parameter of obtaining, comprise analysis-by-synthesis the many aspects of transmission network;
(3) determine the transmission performance of transmission network according to described analysis result.
Through three processing procedures, just can obtain the performance of transmission network comparatively exactly, thereby the problem that exists in definite effectively transmission network, like this, the operation management person of transmission network also just can adjust according to the problem that exists in the transmission network comparatively easily accordingly, so that a well behaved transmission network is provided.
The specific implementation of method of the present invention comprises following processing procedure:
At first, obtain and carry out the parameter that the transmission network assessment needs, described parameter has comprised the various parameters that are used to weigh network performance substantially, specifically comprise: the network resource utilization parameter, network security stability parameter and network management maintenance parameters, these parameters can be obtained automatically by network management center, or obtain in the information of a part of parameter by network management center's record, part parameter obtains by manual type, described manual type comprises that each parameter information that manually will write down is manual and is entered in the terminal of carrying out the transmission network performance evaluation, obtains relevant parameters information thereby can also import to automatically by the document that is writing down each parameter information that needs that will preserve in this locality or the remote equipment in the terminal of the analysis of carrying out the transmission network performance; Say that briefly among the present invention, obtaining of parameter information mainly comprises three kinds of modes: import the mode of document automatically, import the mode and the manual typing mode of parameter information by Network Management Equipment automatically.
Described network resource utilization parameter mainly comprises the quantity that can activate the service, resource effective utilization (time interval resource utilization rate, Internet resources effective utilization etc.) etc., described network security stability parameter mainly comprises ARP (network risks point) single interrupting service quantity, service protection ratio etc., and described network management maintenance parameters mainly comprises the spare part response time;
Described each parameter specifically comprises:
The network resource utilization parameter further comprises following parameter:
RSN (Realizable Service Number, the number of services that can open);
CRE (Cross-connect Resource Efficiency, intersection resource utilization);
RTE (Realizable Timeslot Efficiency, accessible optical link time interval resource utilization rate);
ATE (Actual Timeslot Efficiency, actual optical link time interval resource utilization rate);
RRE (Realizable Resource Efficiency, accessible Internet resources effective utilization);
ARE (Actual Resource Efficiency, actual Internet resources effective utilization)
TIE (Tributary Interface Efficiency, tributary port resource utilization);
SRE (Slot Resource Efficiency, groove position resource utilization);
Described network security stability parameter further comprises following parameter:
CFR (Contemplated Failure rate, expection rate of breakdown);
ARP (Actual Risk Point, the actual risk point of network);
NOIS (Number of One-time Interrupted Services, single ARP fault causes service disconnection quantity);
SPR (Service Protection Rate, service protection ratio);
CU (Contemplated Usability, anticipation network availability);
SSL (Security ﹠amp; Stabilization Levels, network security stability rank).
Described network management maintenance parameters further comprises following parameter:
CMTTR (Contemplated Mean Time to Repair, expection Mean Time To Repair);
CPRT (Contemplated Part Response Time, expection spare part response time);
The ADP of network (Actual Defect Point, practical problem is counted);
SOT (Service Offer Time, service fulfillment time);
IOST (In Time Offering Service Rate, service fulfillment promptness rate).
For above-mentioned each parameter is more clearly understood, again each parameter is further described below:
1、RSN
The number of services that end to end, directly provides upper layer device to use that can open is provided SN (Service Number, number of services), can be base unit with 2M bar number, and the business of different rates is all converted to 2M and calculated; RSN just refer to open number of services, i.e. the configurable volume of business of network under the present case; On behalf of transmission network, the number of services that can open can bring benefits and the volume of business of network, also is the significant data of business development planning, improves RSN usually and then directly improves the producible benefit of network; The RSN=conversion is 2M quantity (bar); Improving RSN then needs to optimize the route of business configuration, rationally uses equipment disposition.
2、CRE
CRE is meant that the professional employed equipment of opening intersects resource and the maximum of equipment and intersects the ratio of resource and ability; Can divide HCE (Higher-order Cross-connect Efficiency, high-order intersects utilization rate) and LCE (Low-order Cross-connect Efficiency, the low order interlace algorithm utilization rate) two parts are considered, wherein HCE calculates with 2M quantity with the calculating of VC4 quantity, LCE.
We only assess the situation of low order interlace algorithm resource utilization LCE at present, and the low order interlace algorithm resource of LCE=reality is used the maximum low order interlace algorithm number of resources of number/equipment.
3、RTE、ATE
RTE is meant the ratio that accessible each section optical link time slot usage quantity obtains divided by the total number of timeslots of each section light path, and instream factor represents with ATE that then computational methods are the same at present;
RTE can calculate in segmentation, also can calculate the overall availability of whole net, mainly weighs the reasonability of networking, and whether the light path bottleneck is arranged; The multiplex section ring calculates total time slot amount with the time slot of configurable business, does not wherein comprise the protection time slot.
RTE=can use the maximum available time slot amount of timeslot number/light path;
RTE can reach 100% for the passage ring, so need not calculate RTE, only needs to calculate ATE and gets final product;
Ideally the circuit time slot of Shi Yonging can equate with the total number of timeslots of light path, but because often there is bottleneck point in network, and making has segment section light path time slot taking, and has the segment section time slot really vacant in a large number; And according at that time service distribution rule, this vacant time slot often can not use in a period of time; So the RTE of multiplex section ring is often less than " 1 ";
Solving network light path bottleneck and adjusting number of services is to improve the approach of optical link time interval resource utilization rate in each section mean allocation.
4、RRE、ARE
The whole network RE (Resource Efficiency, Internet resources effective utilization) comprises ARE and RRE; ARE is meant the Internet resources effective utilization of network reality, and RRE is meant and estimates accessible Internet resources effective utilization;
The whole network RE is for being converted to 2M as molecule with the number of services opened (circuit) end to end, the maximum time slot amount that the light path hop count multiply by light path is denominator (being traffic peak under the perfect condition), be the whole network RE=∑ teleservice quantity/∑ (the maximum time slot amount of light path hop count * light path), but this index molecular network calculates, but also the whole network calculates; This parameter index can reflect the traffic assignments reasonability of network, the economy of Network integral body, and index is high more, and traffic assignments is just reasonable more and network economical is good more;
From the economy angle: the RE under the perfect condition traffic peak be directly proportional with cost, and the number of services of opening is directly proportional with the income that network is created, so the economy that RE can reaction network promptly can reflect the cost and the value of every circuit qualitatively.Website as the circuit transmission of the circuit of some long distance line is more, then will cause the cost of every circuit higher, and like this, just described resource effective utilization RRE index can be lower, promptly the input and output of current network is lower.
From traffic assignments reasonability angle: to a certain definite network, traffic peak is certain under the perfect condition, if and make the professional quantitative change of opening big by rational traffic assignments, then described RE just can improve, thus it is good to make that net list reveals.
We can calculate the different value of the whole network resource effective utilization (RRE) in each networking: the multiplex section ring is 50% to the maximum; Point-to-point chain unprotect is 100% to the maximum; Be 33% to the maximum during passage ring 3 nodes, 2 special node situations also can reach 50%.
5、TIE
TIE is the tributary port quantity used the ratio divided by total tributary port number, and it is that the 2M number calculates that each quantity is all converted; Can divide also that the tributary port type is calculated respectively, substation calculates, and calculates the whole network mean value; For improving resource utilization, the branch road plate of free time can be moved to other local use according to business development, the branch resource utilization rate is very high then need consider dilatation.
6、SRE
In order to give full play to the existing resources advantage of equipment, must guarantee reasonable use, and tributary port utilization rate and vacant groove position are added up, so that dilatation later on to the board slot position;
SRE=∑ (number of slots that has used * single board service capacity)/∑ (total number of slots amount * groove position volume of business; SRE further comprises: circuit groove position utilization rate (the group groove position, road of two-forty) LSE (Line Slot Efficiency) and bypass channel position utilization rate (the groove position of other extendible capacity) TSE (Tributary Slot Efficiency).
7、CFR
FR (rate of breakdown) is meant that the index by a period of time class (being unit with a year generally) before optimizing is divided into: Cable's Fault rate (FFR), equipment failure rate (MFR), service disconnection failure rate (SFR); CFR is the FR value behind the prediction optimization of how much coming according to former years failure rate and causing of optimize solving reason that fault takes place;
Described FFR is meant average per 100 km circuitry obstacle number of times, the failure condition that this index reflection is caused by optical cable;
FFR=optical cable obstacle total degree M1/ lightguide cable link total length N1 (hundred kilometers);
M1: the total degree (comprise decay excessive etc.) that refers to lightguide cable link generation obstacle.Obstacle takes place in one and an above system simultaneously in the intercity line, and the note obstacle once; In the same hop, samely blocking many places simultaneously with communication system, the note obstacle once; Many direct-burried circuits of laying in one ditch with the time block together, remember that obstacle is once;
Described MFR is an equipment obstacle rate, this index reflection transmission equipment failure condition, the 155M circuit sum of equipment obstacle rate=equivalent 155M obstacle sum/equivalence;
Described SFR is meant the professional failure rate of interrupting of taking place, and the 2M quantity of interrupting with gradation in a year adds up divided by the total 2M quantity that comes into operation; The professional outage probability in a year of reflection;
Total 2M quantity that the 2M quantity that gradation is interrupted in the SFR=adds up/comes into operation;
If SFR=0.1%, and your the whole network would just in time have 1000 2M in operation; Represent that then the whole network has only 10 2M to take place once to interrupt in 1 year.
8、ARP
ARP is meant the risk point that among the ADP network is had material impact, for example one section light path interruption, a veneer inefficacy, primary equipment power failure etc. then can be defined as an ARP, these risk points often have very big uncertainty, be difficult to add up its failure rate, if but can avoid this type of risk point will help improving stability of network greatly.
9、NOIS
NOIS is an important indicator of weighing network stabilization and degree of risk, weighs by the value of accurate calculating quantity of service disconnection when various ARP take place.Generally be meant the 2M quantity of interruption, but can change according to the real network situation: as the number of users that can be the machine station quantity of interrupting to mobile service, can interrupt the reciprocal exchange of business, for data service then can be data user's number of terminals of interrupting;
NOIS is a single ARP interrupted service quantity, and MNOIS (Max.Number of One-timeInterrupted Services) then is meant the maximum of NOIS.
10、SPR
SPR is meant the ratio that is protected in the business (being converted to 2M) of the network operation, protected mode can be various SDH (Synchronous Digital Hierarchy) protection (mainly containing network-level protection and device-level protection two classes), can segmentation, classified calculating;
Device-level protection mainly refers to branch road TPS protection and intersection, the protection of clock board Hot Spare at present;
The number of services of the protected number of services of SPR=/open;
Described SPR may further include:
(1) the branch protection ratio claims TPR (Tributary Protection Rate);
(2) cross board protection ratio CPR (Cross-connect Protection Rate);
(3) clock board protection ratio CLPR (Clock Protection Rate);
(4) tabula rasa and tail optical fiber fail safe ratio OPR (Optical Protection Rate);
(5) optical cable fail safe ratio FPR (Fiber Protection Rate);
(6) tables of equipment station failure protection ratio EPR (Element Protection Rate).
By above protection ratio difference indication equipment and the professional protected degree of optical cable under different failure conditions.
11、SSL
From the angle of network protection and network risks network is divided into a plurality of SSL, for example, can distinguishes: A, B, C, D SPInet-IV, as shown in the table, value at the different parameters of network is that network is determined suitably network security stability rank, and can be by the optimization and improvement network-level;
| Rank | MNOIS requires (2M number) | The device-level protection requirement | The network-level protection requirement | Other requirement |
| The A level | MNOIS＝0 | TPR＝100％；CPR＝ 100％；CLPR＝100％ | FSPR ＝100％ |
| The B level | MNOIS≤32 | TPR＝100％；CPR＝ 100％；CLPR＝100％ | NPR＝0％ | |
| The C level | MNOIS≤63 | TPR≥50％；CPR＝ 100％；CLPR＝100％ | NPR≤20％ | |
| The D level | No requirement (NR) | The clock protection that intersects covers central site, professional convergence point | NPR≤50％ | |
| Other | No requirement (NR) | No requirement (NR) | No requirement (NR) |
12、CU
Totally weigh the availability of network with network availability;
CU=1-∑ (service outage duration (t
i) * interrupting service quantity (n
i))/number of services (N) opened in year * move total duration (T);
∑ (service outage duration (t
i) * interrupting service quantity (n
i)) be meant and interrupt total duration (comprise the service disconnection that a variety of causes causes, as: power supply, optical cable, equipment etc.) year professional (conversion 2M); " T " is meant that the total duration of the service operation of opening in year comprises total duration of service disconnection, also is that conversion is calculated for 2M, if the business of opening can be calculated denominator by stages by stages.
13、CMTTR
MTTR reflects fault reflection maintenance levels, maintenance program comprehensively, safeguards the reasonability of system, and the index of logistics support ability;
TTRi is that the i time fault occurs to the time of repairing use, and n is the number of stoppages of statistics.
14、CPRT
PRT gets the response time that spare part arrives the position of fault from part center, that is: obtain spare part from spare part response people and send to and ask the spare part applicant to obtain the time of spare part;
In handle to need changing the fault of spare part, this parameter will directly influence MTTR, improve this parameter and need send to the time to spare part administrative area, service part planning, spare part and be optimized;
Spare part administrative area: be meant that the spare part in the part warehouse offers the scope of application of on-line apparatus; The reasonable division of administrative area helps reducing the spare part response time (distance).
15、ADP
ADP is meant influential problem points such as the maintainability to network security, stability, network that exists in the network, extensibility, resource use, is the designate of network variety of issue point; Comprise business configuration, hardware, luminous power, error code, software setting, running environment etc.
And ADP also comprises networking, the major issue points such as configuration reasonability, maintainability of network, and finding out and reducing the ADP value is to find out and solve the important means of network shortage;
By solving problem points, the proposition maintenance suggestion that network is inconvenient to administer and maintain, can alleviate maintenance workload, help to improve the MTTR index;
Comprehensively, careful grasp network data can provide foundation for the network planning and business development.
16、SOT
After SOT is meant that the attendant receives the instruction of service fulfillment, the average time of opening every business, generally calculate with year or monthly service time;
SOT=∑ (business hours (t
i))/the professional total quantity opened.
17、IOST
After IOST is meant that the attendant receives the instruction of service fulfillment,, generally calculate year-by-year or monthly calculating with the business proportion of in time opening in the time requirement according to SOT according to the ratio that the requirement of service fulfillment time in time activates the service;
The professional total quantity of the number of services that IOST=in time opens/open.
Understood above-mentioned parameter that each need obtain and implication thereof, just can from network, obtain relevant parameters, so that carry out next step analyzing and processing.
Secondly, after obtaining above-mentioned each parameter, performance according to each parameter ginseng network is carried out comprehensive analysis and assessment, promptly according to each parameter of obtaining resource behaviour in service, network security stability and the network management maintenance of transmission network is carried out comprehensive analyzing and processing;
Described comprehensive analyzing and processing comprises that further ADP, resource use, network protection, network risks and the network failure situation to transmission network carry out analyzing and processing.
Concrete analytic process is respectively:
Described network A DP Macro or mass analysis is for gathering tabulation to the ADP of service resources use, network security stability, network maintainability, the quantity of clear and definite soluble problem and at the preliminary advice of described problem;
ADP problem Macro or mass analysis table can adopt following form:
| Sequence number | Problem description | The solution preliminary advice | Remarks |
| 1 | The access layer equipment power supply frequently has a power failure | ||
| 2 | The professional unprotect of * * |
||
| 3 | ...... |
Obtain corresponding analysis result, just can find out the key point of problem, and determine concrete optimized Measures respectively, be optimized the contrast of scheme afterwards again, with the reasonable optimizing scheme of final acquisition at a certain transmission network:
| Prioritization scheme | Degree of protection | Degree of risk | Volume of business (conversion 2M) | Implement risk and difficulty | Implementation amount and cycle | Investment |
| 1 | 100％ | High | 300 | High | 30 days | 1,000,000 |
| 2 | 50％ | Higher | 100 | |
100 days | 200,000 |
| 3 | In | In |
Described resource operational analysis is for analyzing RSN, CRE, RTE, RRE, TIE and equipment slots position operating position etc.; Fig. 1 has provided the analysis chart at the Internet resources behaviour in service, carried out the demonstration of multiple resource utilization among the figure respectively at network one, network two and network three, comprise outlet resource utilization, optical link resource utilization, intersection resource utilization, groove position resource utilization and Internet resources effective utilization etc., promptly can be well understood to the behaviour in service of Internet resources by Fig. 1.
Described network protection is analyzed and specifically can be divided into: separate service and branch importance are analyzed corresponding protection and protection ratio respectively, as shown in Figure 2, listed the various types of traffic that optical-fiber network comprises respectively in the analysis diagram of optical network service distribution protection situation, as the intra-exchange business, exchange long-distance service, the business that interconnects, data service, wireless traffic or the like, also shown the number of services and the shielded number of services of corresponding operation respectively at each business;
Network protection analyze can also at the device-level protection ratio, the network-level protection ratio that the network-level protection ratio gathers of the whole network; as shown in Figure 3, Figure 4; Fig. 3 has provided optical network protection ratio schematic diagram; the ratio that has shown protection fully in the network, part protection and unshielded equipment among the figure respectively; Fig. 4 has then provided the analysis chart of further network protection situation, has specifically comprised branch protection ratio, tabula rasa and tail optical fiber protection ratio, cross board protection ratio or the like.
Described network risk analysis mainly comprises:
The calculating of ARP: one section light path interrupts, an ARP quantity is then calculated in veneer inefficacy, primary equipment power failure etc.;
The ARP problem for example
| Sequence number | The actual risk point of network (ARP) | Single interrupting service quantity (NOIS) | Network risks number of spots (ARPN) | Remarks |
| 1 | Luminous power is the light path section of " needing to optimize " | |||
| 2 | Device power supply (DPS) has a power failure, no stand- |
|||
| 3 | Invariably with the fiber break of route protection | |||
| 4 | Unshielded veneer lost efficacy | |||
| 5 |
ARP (network risks point) and NOIS (ARP single interrupting service quantity) Macro or mass analysis;
The ARP single failure causes the maximum of service disconnection quantity NOIS (Number of One-timeInterrupted Services) to represent with MNOIS;
The various situations of ARP are enumerated and NOIS is marked in the drawings, as shown in Figure 5, shown each self-corresponding NOIS value of different ARP (ARP1, ARP2......ARP9), same class and the bigger ARP of quantity can be marked its MNOIS in the drawings.
Classification analysis carries out for the reason that described fault statistics analysis can take place according to fault, time, zone etc., and can show with the form of scheming, shown in Fig. 6,7, Fig. 6 has provided the statistic analysis result of generation ratio of the different faults reason of network, and Fig. 7 has then provided the statistic analysis result of the number of times that fault takes place in the different time periods.
At last, the analysis result based on each parameter according to the front just can obtain the performance of transmission network comparatively exactly, for example, the report that can generate about the transmission network performance offers the user, and described report can comprise the form (extremely shown in Figure 7 as Fig. 1) of chart and the form of literal; Like this, the user is according to reporting the problem place that can determine exactly in the transmission network, the network operator also just can adjust transmission network according to the problem place of determining accordingly, to provide transmission performance good transmission network, for example, when analysis result determines that a certain parameter value in the network transmission performance is lower, need provide this parameter value to adopt the demand that can meet Network Transmission, then can determine to influence in the network various factors of this parameter, and reasonably adjust, thereby guarantee to provide the value of described parameter at each factor.
Can also set in advance at the optimization of transmission network according to the performance that obtains transmission network among the present invention and advise, like this in the process of carrying out the transmission network Performance Evaluation, can also provide corresponding network optimization suggestion to the user according to the performance index of the transmission network that obtains and the network optimization suggestion that sets in advance, so that the user is optimized processing according to optimizing suggestion to transmission network.
Described optimization suggestion can be set to comprise:
1, service optimization suggestion
Can consider that at the low order interlace algorithm resource optimization time slot is regular; The professional collocation configuration of 2M, 155M; The band extended subrack; The intersection or the convergence point of the general main consideration network of intersection resource;
Solve service circuit time slot bottleneck can consider the adjustment of Home Network routing configuration, adjust a part professional to other network, tear open ring make professionally balancedly distribute, the increase dispatch layer;
Branch resource considers that too much professional tributary port merges the adjustment plate; Very fewly consider the splice dilatation; The band extended subrack; The professional collocation configuration of 2M, 155M;
Consider service detach route and branch importance protection (business of same office direction is walked different networks and optical cable route); According to exchange, move, the assessment data of data or important links such as LINK wherein.
2, network self-healing and protection optimization suggestion
Improving protection ratio emphasis will distribute according to optical cable, often is subjected to the restriction of optical cable; Can consider also that simultaneously virtual ring shares light path, SNCP guard ring band chain, MICROWAVE PROTECTION, 1+1,1:1 and protect;
Single-chip protection is considered intersection, clock Hot Spare, TPS, EPS protection;
Protected mode is preferably considered: the half-duplex channel ring changes the duplex channel ring into; Two fiber complex section rings change the four fiber complex section ring; 2.5G ring intersects and to change DNI (binode is interconnected) or crosspoint and add 10G and increase dispatch layer.
3, networking optimization
Attenuation is excessive, considers to check optical cable and tail optical fiber quality of connection; Or consider to change long apart from tabula rasa or higher plate, increase power board, the increase relay station of receiving sensitivity;
Equipment slots position, plate position, topological structure are mainly considered the equipping rules of each equipment;
Topological structure is also mainly planned and professional management tactics according to needs, the networks development of professional and protection.
4, spare part optimization suggestion
Spare part quantity, kind will be according to the service part planning principles;
The distribution of spare part is time-optimized according to distance;
Final index is PRT (the spare part response time);
Can consider the spare part test and change service.
5, webmaster and safety management optimization
Mainly be to consider the setting of client, prevent misoperation by Permission Levels; Personnel with supervision authority, not responsible maintenance have only supervision authority at ordinary times;
Multiple network management is that different NE User is set.
More than just at optimize suggestion for example, be not limited in above optimization suggestion in the practical application, and the described optimization suggestion that sets in advance can upgrade in real time according to the actual needs, thereby make that the optimization suggestion that offers the user is more reasonable.
In concrete application process, the present invention can carry out the analysis of each supplemental characteristic according to the index that imposes a condition and calculate, for example be lower than the numerical value of setting when the resource utilization of a certain branch road, then adopt a certain suggestion of setting or the like, and adopt modes such as form, diagram, suggestion bar to carry out the output of transmission network performance, comprise network problem point, network risks point etc.In conjunction with various analyses output results' concrete application example application of the present invention is described respectively below.
Described resource operational analysis result can comprise:
The whole network resource capacity table
| The network title | The actual number of services of opening (ASN) | Central station tributary port quantity | Non-central station Number of Available/Faulty Ports (2M) | Main ring optical link time slot capacity | The low order interlace algorithm capacity |
| Suburb ring MSC1 | 81 | 128 | 320 | 126 | 1512 |
| Urban district ring MSC2 | 178 | 252 | 700 | 504 | 1512 |
| Main ring MSC3 | 318 | 441 | 1489 | 2016 | 2016 |
| Beihuan MSC4 | 89 | 189 | 417 | 1008 | 2016 |
| Interconnect | 127 | 378 | 504 | 2016 | |
| Amount to | 793 | 1388 | 2926 | 4158 | 7056 |
The whole network resource behaviour in service table
| The network title | The intersection resource utilization | The light path resource utilization | Non-central station branch resource | The central station branch resource makes | The whole network real resource uses |
| (CRE) | (ATE) | Utilization rate (Ti e) | With rate (TIE) | Usefulness (ARE) | |
| Suburb ring MSC1 | 16.07％ | 64.29％ | 25.31％ | 63.28％ | 4.76％ |
| Urban district ring MSC2 | 35.32％ | 35.32％ | 35.60％ | 70.63％ | 3.32％ |
| Main ring MSC3 | 47.32％ | 15.77％ | 21.36％ | 72.10％ | 2.12％ |
| Beihuan MSC4 | 13.24％ | 8.82％ | 21.34％ | 47.09％ | 1.77％ |
| Amount to | 29.63％ | 18.22％ | 23.51％ | 65.94％ | 2.54％ |
The whole network available resources status list
| The network title | Remaining time slots number (2M) | Central station remaining port number (2M) | Non-central station remaining port number (2M) | Can increase the traffic carrying capacity of opening | Take all factors into consideration the number of services (RSN) that to open | The accessible resource effective utilization of the whole network (RRE) |
| Suburb ring MSC1 | 46 | 48 | 240 | 46 | 126 | 7.41％ |
| Urban district ring MSC2 | 301 | 50 | 498 | 50 | 252 | 4.71％ |
| Main ring MSC3 | 1694 | 119 | 1167 | 119 | 441 | 2.94％ |
| Beihuan MSC4 | 916 | 97 | 325 | 325 | 417 | 8.27％ |
| Amount to | 2957 | 318 | 2230 | 540 | 1236 | 4.56％ |
Professional and the resource operating position table of each subring
Described network protection analysis result can comprise:
The tabulation of network protection statistics
| The protection type subnet | The suburb ring | The urban district ring | Main ring | Beihuan | Interconnect | Add up to |
| Professional |
0％ | 0％ | 0％ | 0％ | 0％ | 0％ |
| Tributary |
0％ | 0％ | 22.85％ | 31.19％ | 0％ | 24.84％ |
| Tabula rasa and tail optical fiber protection ratio | 59.26％ | 78.65％ | 70.44％ | 61.79％ | 0％ | 58.89％ |
| The cable protection ratio | 59.26％ | 78.65％ | 70.44％ | 61.79％ | 0％ | 58.89％ |
| Cross board protection ratio | 19.23％ | 45.45％ | 44.44％ | 36.84％ | 66.67％ | 38.56％ |
| Clock |
0％ | 18.18％ | 23.61％ | 26.32％ | 66.67％ | 18.30％ |
| Accessible intersection/clock board protection ratio | 61.54％ | 81.73％ | 73.61％ | 47.36％ | 100％ | 68.63％ |
| The single station failure protection in non-central station ratio | 80.25％ | 75.84％ | 77.05％ | 51.69％ | 0％ |
Described network risk analysis result can comprise:
Network risks point analysis table
Described network failure analysis result can comprise:
The network failure distribution graph
| Fault type | The power down fault | Single board default | Optical cable cleft grafting | Cable's Fault | The running environment problem | Other problems |
| The number of stoppages | 244 | 35 | 9 | 15 | 8 | 9 |
Network A DP analysis result can comprise:
The analysis result of the transmission network performance of the present invention's output removes and comprises above-mentioned each off-balancesheet, can also comprise chart as shown in drawings, promptly can adopt or scheme or show, or the mode of chart combination is carried out the expression of transmission network performance.
The present invention also provides a kind of system that assesses network transmission performance, as shown in Figure 8, comprising:
Parameter obtaining device: be used to obtain network resource utilization parameter, network security stability parameter and network management maintenance parameters; Described parameter obtaining device comprises that further manual entry module, document import module and/or long-range importing module, promptly can select one or more as parameter obtaining device in described three modules, and:
Described manual entry module is used for the manual typing of each parameter of manually obtaining is comprised the artificial parameter information that obtains by the maintenance record and the collection in worksite of transmission network, and sends to the parameter analytical equipment;
The document files that described document importing module is used for recording each parameter imports automatically, and sends to the parameter analytical equipment, and described document comprises the various electronic documents that writing down each parameter information that are stored in the memory device;
Described network management information imports module and is used for each parameter information of network management center's record is imported, and send to the parameter analytical equipment, usually network management center is writing down a large amount of needed each parameter information of transmission network performance evaluation that carry out, as parameter informations such as the behaviour in service of the network equipment, network failure situations, therefore import module with the importing of relevant parameters information for the analysis of carrying out the transmission network performance need be provided with this webmaster, and be used for parameter analysis use.
The parameter analytical equipment: each parameter that is used for parameter obtaining device is obtained is carried out comprehensive analysis processing; and the performance index of generation transmission network; this device further comprises ADP analysis, resource operational analysis, network protection analysis, network risk analysis and five modules of network failure status analysis; can adopt one or more in described five modules as the parameter analytical equipment; concrete analyzing and processing process has had description in front, repeats no more herein.
The network performance output device: the performance index that are used for transmission network that the parameter analytical equipment is generated generate the file of predetermined format, and send to user side, for example the various performance index of transmission network can be exported to the user with the form demonstration of chart, the various performance index parameter values of transmission network also can directly be provided to the user.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1, a kind of method of assessing the transmission network performance is characterized in that comprising:
A, obtain network resource utilization parameter, network security stability parameter and network management maintenance parameters respectively, described network resource utilization parameter comprises the quantity that can activate the service, resource effective utilization, described network security stability parameter comprises ARP (network risks point) single interrupting service quantity, service protection ratio, and described network management maintenance parameters comprises the spare part response time;
Each parameter that B, basis are obtained is carried out comprehensive analyzing and processing to resource behaviour in service, network security stability and the network management maintenance of transmission network;
C, determine and obtain the performance of transmission network according to described comprehensive analysis processing result.
2, the method for assessment transmission network performance according to claim 1 is characterized in that described steps A comprises:
Obtain described network resource utilization parameter, network security stability parameter and network management maintenance parameters by the mode that manual entry, document import automatically or network management center imports automatically.
3, the method for assessment transmission network performance according to claim 1 and 2 is characterized in that:
The described network resource utilization parameter of steps A further comprises:
RSN (Realizable Service Number, the number of services that can open);
CRE (Cross-connect Resource Efficiency, intersection resource utilization);
TE (Timeslot Efficiency, optical link time interval resource utilization rate);
RE (Resource Efficiency, Internet resources effective utilization); And,
Described TE comprises: RTE (Realizable Timeslot Efficiency, accessible optical link time interval resource utilization rate), and ATE (Actual Timeslot Efficiency, actual optical link time interval resource utilization rate);
Described RE comprises: RRE (Realizable Resource Efficiency, accessible Internet resources effective utilization), and ARE (Actual Resource Efficiency, actual Internet resources effective utilization);
The described network security stability of steps A parameter further comprises:
ARP (Actual Risk Point, the actual risk point of network);
NOIS (Number of One-time Interrupted Services, single ARP fault causes service disconnection quantity);
SPR (Service Protection Rate, service protection ratio);
SSL (Security﹠amp; Stabilization Levels, network security stability rank), SSL is the rank that network is determined for the value at the different parameters of transmission network;
The described network management maintenance parameters of steps A comprises:
CMTTR (Contemplated Mean Time to Repair, expection Mean Time To Repair);
CPRT (Contemplated Part Response Time, expection spare part response time);
ADP (Actual Defect Point, the actual problem points number of network), ADP are the quantity of the problem points that influences the transmission network performance that exists in the network.
4, the method for assessment transmission network performance according to claim 3 is characterized in that:
The described network resource utilization parameter of steps A also comprises:
TIE (Tributary Interface Efficiency, tributary port resource utilization);
SRE (Slot Resource Efficiency, groove position resource utilization), described SRE further comprises: LSE (Line Slot Efficiency, circuit groove position utilization rate), described circuit groove position is the group groove position, road of two-forty; And TSE (Tributary Slot Efficiency, bypass channel position utilization rate), described bypass channel position is the groove position of other extendible capacity except that the group groove position, road of two-forty; And described groove position utilization rate is ∑ in the equipment (number of slots that has used * single board service capacity)/∑ (total number of slots amount * groove position volume of business);
The described network security stability of steps A parameter also comprises:
CFR (Contemplated Failure rate, expection rate of breakdown), CFR carries out the analysis-by-synthesis acquisition for statistical value and network reliability value according to the actual history failure rate;
CU (Contemplated Usability, anticipation network availability), the product that refers to interrupting service quantity and service outage duration in the network is divided by the product of the number of services of opening with the total duration of operation;
The service protection ratio that the described network security stability of steps A parameter relates to is protected number of services and the ratio of the number of services of opening, and described service protection ratio further comprises:
TPR (Tributary Protection Rate, the branch protection ratio claims);
CPR (Cross-connect Protection Rate, cross board protection ratio);
CLPR (Clock Protection Rate, clock board protection ratio);
OPR (Optical Protection Rate, tabula rasa and tail optical fiber fail safe ratio);
FPR (Fiber Protection Rate, optical cable fail safe ratio);
EPR (Element Protection Rate, tables of equipment station failure protection ratio);
The described network management maintenance parameters of steps A also comprises:
SOT (Service Offer Time, service fulfillment time), SOT open every business needed average time in the network;
IOST (In Time Offering Service Rate service fulfillment promptness rate), IOST is a satisfactory business proportion of service fulfillment time in the network.
5, the method for assessment transmission network performance according to claim 1 and 2 is characterized in that described step B comprises:
According to each parameter of obtaining ADP, resource use, network protection, network risks and the network failure situation of transmission network are carried out analyzing and processing, obtain corresponding analysis result.
6, the method for assessment transmission network performance according to claim 5 is characterized in that described step C further comprises:
Determine and obtain the performance of transmission network according to described comprehensive analysis processing result;
Determine to offer the network optimization suggestion of user side according to the performance of described transmission network and the network optimization suggestion that sets in advance, and offer user side.
7, the method for assessment network transmission performance according to claim 6 is characterized in that described step C also comprises:
With the performance of the transmission network that obtains and optimize suggestion with scheme, the mode of table or chart combination is exported on user terminal and show.
8, a kind of system that assesses network transmission performance is characterized in that comprising:
Parameter obtaining device: be used to obtain network resource utilization parameter, network security stability parameter and network management maintenance parameters;
The parameter analytical equipment: each parameter that is used for parameter obtaining device is obtained is carried out comprehensive analysis processing, and generates the performance index of transmission network;
The network performance output device: the performance index that are used for transmission network that the parameter analytical equipment is generated generate the file of predetermined format, and send to user side.
9, the system of assessment network transmission performance according to claim 8 is characterized in that described parameter obtaining device comprises that further manual entry module, document import module and/or network management information imports module, and:
Described manual entry module is used for the manual typing of each parameter of manually obtaining, and sends to the parameter analytical equipment;
Described document imports the document files importing that module is used for recording each parameter, and sends to the parameter analytical equipment;
Described network management information imports module and is used for each parameter of network management center's record is imported, and sends to the parameter analytical equipment.
10, according to Claim 8 or the system of 9 described assessment network transmission performances, it is characterized in that described parameter analytical equipment further comprises at least one in ADP analysis module, resource operational analysis module, network protection analysis module, network mesh danger analysis module and the network failure analysis module.
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| CN106792834A (en) * | 2017-02-10 | 2017-05-31 | 太仓鼎诚电子科技有限公司 | A kind of GSM network optimization system of three-decker |
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| CN101001173B (en) * | 2006-06-29 | 2010-08-18 | 华为技术有限公司 | Method for estimating network protection status |
| CN101212344B (en) * | 2006-12-29 | 2010-12-08 | 中国移动通信集团公司 | Method for obtaining performance parameters of multimedia information service center |
| WO2010085911A1 (en) * | 2009-02-02 | 2010-08-05 | 中兴通讯股份有限公司 | Self-optimizing method and system for mobile communication network |
| CN101783752B (en) * | 2010-02-10 | 2012-04-18 | 哈尔滨工业大学 | Network security quantitative estimation method based on network topology characteristic |
| CN102468997A (en) * | 2011-07-01 | 2012-05-23 | 中国人民解放军国防科学技术大学 | Method for assessing stability of safety index system of multidimension network |
| CN103428024A (en) * | 2012-05-26 | 2013-12-04 | 李秉钧 | System carrying out dynamic management on communication transmission network resource quality |
| CN106712843A (en) * | 2016-12-13 | 2017-05-24 | 中国联合网络通信集团有限公司 | Optical fiber line performance assessment method and system |
| CN108111361B (en) * | 2018-02-06 | 2021-10-15 | 武汉烽火技术服务有限公司 | Transmission network fault positioning analysis method and system based on big data analysis |
| CN108667511A (en) * | 2018-05-18 | 2018-10-16 | 国家电网公司信息通信分公司 | Optical transport network operation risk method for early warning based on depth finding and system |
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