CN115865719A - 5G Customized Network Service SLA Monitoring and Guarantee Method - Google Patents

Abstract

The invention discloses a monitoring and guaranteeing method for a 5G customized network service SLA (service level agreement), which is used for determining the monitoring requirements of the 5G customized network service SLA of the intention of a client while signing, wherein the monitoring requirements comprise a service availability index and a network availability index, and the indexes are counted and managed to obtain service availability and network availability; when the service availability and the network availability are not met, an alarm is automatically generated for the index exceeding the threshold value. The operation cost of an operator can be effectively reduced, the operator formulates flexible differential pricing service based on different SLA standards, a communication platform capable of negotiating service price and guaranteeing grade is provided, and the method is favorable for achieving effective balance between meeting diversified customized network requirements of industry customers and reducing 5G operation and maintenance cost.

Description

5G Customized Network Service SLA Monitoring and Guarantee Method

technical field

The invention belongs to the technical field of network operation and maintenance, and in particular relates to a 5G customized network service SLA monitoring guarantee method.

Background technique

With the maturity of 5G technology and continuous improvement of network coverage, the goal of 5G empowering digitalization and applications enabling thousands of industries is becoming a reality. Different industries have different requirements for monitoring assurance. If a set of standardized business monitoring assurance is provided, it cannot meet the needs of different customers in different industries, and it will also reduce the utilization rate of network resources and customer service satisfaction.

In the existing 5G customized network service monitoring guarantee, there is no detailed division of indicators for business service and network service monitoring. 5G customized networks provide different monitoring support capabilities for different industries and scenarios. How to define and divide different levels of SLA (Service Level Agreement) is very important for both service providers and consumers. Classification still faces many problems. For example. In terms of industry users, although some industry application scenarios have carried out some experiments based on the SA network, most industry users do not have a clear understanding of SLA monitoring guarantees. In terms of operators, the classification of 5G customized network service SLA levels involves many industry application scenarios and each industry is highly professional. It requires operators and industry users to conduct a lot of joint exploration and research, and industry leading enterprises need to deeply participate in the definition of salesman SLA level standards. and divide. How to achieve the balance between the complexity of operation management and the diversity of customer needs is a big challenge. A clear SLA specification and service quality management process that can satisfy both parties at the same time can only be completed through multiple verifications and update iterations in the market. .

Contents of the invention

The technical problem to be solved by the present invention is to provide a 5G customized network service SLA monitoring and guarantee method for the above-mentioned deficiencies in the prior art, which can effectively improve the ability of operators to serve industry users, and operators can participate in the process of SLA standard formulation in a more in-depth manner. Understand the industry's application requirements for 5G customized networks, and formulate monitoring and guarantee methods that meet the needs of most industries. SLA monitoring guarantee can effectively reduce the operating costs of operators. Operators formulate flexible differential pricing services based on different SLA standards, and provide a communication platform for negotiable service prices and guarantee levels, which helps meet the diversified customized network needs of industry customers. Reach an effective balance between reducing 5G operation and maintenance costs.

For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is:

5G customized network service SLA monitoring guarantee method, including:

Step 1. When signing the contract, determine the customer's intended 5G customized network service SLA monitoring requirements, including service availability indicators and network availability indicators, and perform statistics and management on the indicators to obtain service availability and network availability;

Step 2. When service availability and network availability do not meet requirements, alarms are automatically generated for indicators exceeding thresholds.

In order to optimize the above technical solutions, the specific measures taken also include:

The above-mentioned service availability indicators include service unavailable duration, service unavailable frequency, and minimum unavailable interval;

The formula for calculating the above-mentioned service unavailable duration indicator is:

(Influence coefficient × measured value of service unavailable duration)/service threshold;

Among them, the business threshold can take the average value of the recovery time according to the type of 5G business;

Service unavailable duration measurement value = fault duration (fault work order business interruption duration - free duration) × failure coefficient + cutover work order interruption duration × cutover coefficient;

For services with no faults and cutover work orders, the default value of the unavailable duration indicator is 100%.

The formula for calculating the frequency index of the above-mentioned business unavailability is:

(Influence coefficient × business unavailable frequency measurement value) / business threshold;

Among them, the service threshold is based on the average value of the number of possible times for the type of 5G service;

Business unavailable frequency measurement value = number of failure work orders × failure coefficient + number of cutover work orders × cutover coefficient;

For services with no faults and cutover work orders, the default value of the unavailable duration indicator is 100%.

Above-mentioned service minimum unavailable interval index=(influence coefficient×service threshold)/minimum unavailable interval measured value;

Among them, the minimum unavailable interval measurement value = the start time of this fault work order - the end time of the last fault work order;

The business threshold is set according to the type of 5G business or the actual research of operation and maintenance personnel;

If the measured value of the minimum unavailable interval exceeds 360 days, the minimum unavailable interval is 100%; for a trouble-free work order, the default minimum unavailable interval for the business is 100%.

The above step 1 is based on the service unavailability duration, service unavailability frequency, and minimum unavailability interval indicators, and according to the statistical rules of customers with poor, general, and good services, as well as the business proportion rules, to determine service availability. Specifically:

1) If there is no poor and general business and all good business indicators are 100%, then the service availability is 100%;

2) When the poor ratio is ≥ 15%, the service availability shall take the minimum value among the poor business indicators;

3) When the proportion of poor + general business is ≥ 15%, the service availability shall take the minimum value of the general business index;

4) When none of the above items 1)-3) are satisfied, the service availability shall take the minimum value of good proportion.

The above-mentioned network availability includes delay determinism, packet loss determinism, bandwidth rate determinism;

Network availability K _5G :

K _5G ＝0.1×K _Jitter +0.2×K _PackLoss +0.3×K _Delay +0.4×K _Speed

Among them, K _PackLoss is the certainty of packet loss;

K _Delay is the RTT delay, K _Jitter is the jitter delay, and the two constitute the delay determinism;

K _Speed is bandwidth rate determinism.

In the above step 2, check the alarm rules and match them one by one, define and segment the alarm and analyze the cause, and generate a report for the analysis results;

According to the matching rules, the alarm and the generated report are inserted into the dispatch list to be assigned, the scheduled task executes the fault dispatch, and the alarm is sent to the executor by SMS or email.

The present invention has the following beneficial effects:

Provide customized monitoring assurance for different scenarios in different industries by defining 5G customized network SLA monitoring indicators and calculation methods and methods, and automatically generate alarms for indicators that have problems in the assurance, analyze the causes of alarms, generate reports, and dispatch manually or automatically Single to the executor designated by the province. specific:

1. Through the algorithmic calculation of service availability indicators and network availability indicators, it can meet the business and network requirements of different customers, and solve the needs of customers in different industries and different scenarios.

2. Through the processing and analysis of atomic data and the formulation of algorithm rules, it can provide customers with diversified indicator monitoring and improve the efficiency of SLA monitoring.

3. Through the automatic dispatch of alarms, timely notify the operation and maintenance personnel of customers who do not meet the service availability and network availability, and provide guiding suggestions for the operation and maintenance of SLA guarantees based on the results of report analysis.

Description of drawings

Fig. 1 is a business flow chart among the present invention;

Fig. 2 is an index structure diagram among the present invention;

Fig. 3 is a flowchart of calculation of service unavailable duration in the present invention;

Fig. 4 is a flow chart of calculating the unavailable frequency of services in the present invention;

Fig. 5 is the minimum unavailable interval calculation flowchart in the present invention;

Fig. 6 is a flow chart of service availability calculation in the present invention;

Fig. 7 is a flow chart of the alarm dispatching algorithm in the present invention.

Detailed ways

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

The invention provides a 5G customized network service SLA monitoring and guarantee method. SLA is an agreement reached through negotiation between the two parties. common understanding, the SLA monitoring guarantee method of the present invention mainly carries out statistics and management to the service availability index and the network availability index, wherein the service availability index includes: service unavailable duration, service unavailable frequency, minimum unavailable interval, and network availability includes: time Delay determinism, packet loss determinism, bandwidth determinism.

As shown in Figure 1-2, during the specific implementation process, the 5G customized network service SLA monitoring guarantee method includes:

Step 1. When signing the contract, determine the customer's intended 5G customized network service SLA monitoring requirements, including service availability indicators and network availability indicators, and perform statistics and management on the indicators to obtain service availability and network availability;

First of all, communicate with the customer. When signing the contract, determine the SLA monitoring requirements of the customer's intention, including service availability and network availability.

Among them, service availability includes: service unavailable duration, service unavailable frequency, and minimum unavailable interval;

Network availability includes: delay determinism, packet loss determinism, bandwidth determinism.

(1) Service availability algorithm

1) The length of time when the business is unavailable

The process logic is shown in Figure 3, and the business thresholds are shown in Table 1:

Table 1

The algorithm process is as follows:

Calculate the measured value of service unavailable time:

Service unavailable duration measurement value = fault duration (fault work order service interruption duration - free duration) × failure coefficient + cutover work order interruption duration × cutover coefficient.

The service threshold can be the average recovery time based on the type of 5G service, see the figure above for details.

Service unavailable duration index: (influence coefficient × service unavailable duration measurement value)/service threshold

The default value of the service unavailable duration indicator for no fault and cutover work orders is 100%.

2) Frequency of business unavailability

The process logic is shown in Figure 4, and the business thresholds are shown in Table 2:

Table 2

The algorithm process is as follows:

A. Calculate the measured value of the frequency of service unavailability:

Service unavailable frequency measurement value = number of failure work orders × failure coefficient + number of cutover work orders × cutover coefficient.

B. The service threshold is based on the average value of the number of times available for the type of 5G service, see the figure above for details.

C. Business unavailable frequency index: (influence coefficient × business unavailable frequency measurement value) / business threshold

D. The default value of the service unavailable time indicator for no fault and cutover work order is 100%.

3) Minimum unavailable interval

The process logic is shown in Figure 5, and the business thresholds are shown in Table 3:

table 3

The algorithm process is as follows:

The minimum unavailable interval measurement value = the start time of this fault work order - the end time of the last fault work order (the service has not experienced a fault before or the last fault has occurred for more than one year, then it is a fault-free interval. Faulty In the work order, the difference between the start time of this work order and the end time of the last work order is taken, and the minimum difference is taken as the minimum unavailable interval measurement value).

The service threshold is set according to the type of 5G service or after the actual research of the operation and maintenance personnel, as shown in Figure 5 for details.

Service minimum unavailable interval index = (influence coefficient × service threshold)/measurement value

If the measured value of the minimum unavailable interval exceeds 360 days, the minimum unavailable interval is 100%, and the default is 100% for no trouble ticket.

4) Calculate service availability

The process logic is shown in Figure 6, and the algorithm process is as follows:

According to the indicators calculated above (service unavailable duration indicator, service unavailable frequency indicator, minimum unavailable interval indicator)

Table 4 shows the statistical rules for poor, average, and good business customers:

Table 4

The proportion rules of customers with poor, general and good business are shown in Table 5:

table 5

category proportion rule Poor proportion Number of poor business/number of customer business General proportion General Business Number/Customer Business Number good ratio Number of Good Businesses/Number of Customer Businesses

The customer service availability rules are as follows:

① If there is no bad business and general business and all good business indicators are 100%, then the customer service availability is 100%.

② When the proportion of poor is ≥ 15%, then the customer service availability takes the minimum value of the poor business indicators (all poor business as problem business).

③When the proportion of poor + general business is ≥ 15%, then the customer service availability takes the minimum value of the general business index (all poor + general business with the minimum value of the index are regarded as problematic business).

④ If the above three items are not satisfied, it means that the proportion of poor + general is < 15%, and the customer service availability takes the minimum value of good proportion (all poor + general + good minimum value business is regarded as problem business).

⑤ The business indicators involved in service availability only include the duration of service unavailability, the frequency of service unavailability, and the minimum unavailability interval.

(2) Network availability algorithm

1) Latency determinism

RTT delay

RTT downlink delay and RTT uplink delay can be used as evaluation indicators. The RTT delay is more comprehensive and representative than the packet delay covered by the TCP delay.

Jitter delay

Uplink jitter delay (ms) = AVG (UDP uplink average packet interval jitter/1000)

Downlink jitter delay (ms) = AVG (UDP downlink average packet interval jitter/1000)

Service jitter delay (ms) = AVG ((UDP downlink average packet interval jitter + UDP uplink average packet interval jitter)/1000)

2) Packet loss certainty

Uplink packet loss rate = 1-(UL Packet Number STG1+UL Packet Number STG2+UL Packet Number STG3+UL Packet Number STG4)/(OutputPacket (uplink IP packets) L4protocol=1)

Downlink packet loss rate=1-(DL Packet Number STG1+DL Packet Number STG2+DL PacketNumber STG3+DL Packet Number STG4)/(InputPacket (downlink IP packet number)L4protocol=1)

Service packet loss rate＝1-(UL Packet Number STG1+UL Packet Number STG2+UL Packet Number STG3+UL Packet Number STG4+DL Packet Number STG1+DL Packet Number STG2+DL Packet Number STG3+DL Packet Number STG4)/(( OutputPacket (number of uplink IP packets)+InputPacket (number of downlink IP packets) L4protocol=1)

3) Deterministic bandwidth rate

Uplink rate=(uplink traffic*8/1024)/(TCP uplink transmission time/1000)

Downlink rate=(downlink traffic*8/1024)/(TCP downlink transmission time/1000)

Network availability assessment calculation method:

K _5G = Coefficient 1×K _Jitter + Coefficient 2×K _PackLoss + Coefficient 3×K _Delay + Coefficient 4×K _Speed

Among them, K _Delay ＝0.7×K _{DLRTT_5G} +0.3×K _{ULRTT_5G}

Coefficient 1, Coefficient 2, Coefficient 3, and Coefficient 4 are 0.1, 0.2, 0.3, and 0.4, respectively.

That is, K _5G ＝0.1×K _Jitter +0.2×K _PackLoss +0.3×(0.7×K _{DLRTT_5G} +0.3×K _{ULRTT_5G} )+0.4×K _Speed

Among them, K _PackLoss is the certainty of packet loss;

K _Delay is the RTT delay, K _Jitter is the jitter delay, and the two constitute the delay determinism;

K _Speed is bandwidth rate determinism.

Step 2. When service availability and network availability do not meet requirements, alarms are automatically generated for indicators exceeding thresholds.

In the embodiment, as shown in Figure 7, the specific alarm dispatching algorithm is:

When the evaluation indicators of service availability and network availability do not meet the requirements, an alarm is automatically generated for the indicators exceeding the threshold. After the alarm is generated, the alarm rules are automatically checked and matched one by one. A report is generated as a result. According to the matching rules, the alarm and the generated report are inserted into the dispatch form to be assigned, the timer is set to perform the scheduled task to execute the fault dispatch, and the alarm is sent to the executors in each province by SMS or email.

The above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (8)

1. The method for monitoring and guaranteeing the SLA of the 1.5G customized network service is characterized by comprising the following steps:

   step 1, determining the SLA monitoring requirements of the 5G customized network service of the client intention while signing, wherein the SLA monitoring requirements comprise service availability indexes and network availability indexes, and counting and managing the indexes to obtain service availability and network availability;

   and 2, when the service availability and the network availability do not meet the requirements, automatically generating an alarm for the index exceeding the threshold value.
2. 2. The 5G customized web service SLA monitoring and ensuring method according to claim 1, wherein the service availability indicators comprise service unavailability duration, service unavailability frequency and minimum unavailability interval.
3. 3. The 5G customized web service SLA monitoring and ensuring method according to claim 2, wherein the service unavailability duration index calculation formula is:

   (impact coefficient x long measurement when traffic is not available)/traffic threshold;

   wherein, the service threshold value can be the average value of the recovery duration according to the type of the 5G service;

   the service unavailable duration measurement value = the fault duration (fault work order service interruption duration-free duration) x the fault coefficient + the cutover work order interruption duration x the cutover coefficient;

   for the services without faults and with the work orders cut over, the default value of the unavailable duration index is 100%.
4. 4. The method for monitoring and ensuring SLA (service level agreement) of the 5G customized network service according to claim 2, wherein the calculation formula of the unavailable frequency index of the service is as follows:

   (impact factor x traffic unavailable frequency measurement)/traffic threshold;

   wherein, the service threshold value can be the average value of the times according to the type of the 5G service;

   the service unavailable frequency measurement value = fault worker singular number x fault coefficient + cutting worker singular number x cutting coefficient;

   for the services without faults and with the work orders cut over, the default value of the unavailable duration index is 100%.
5. 5. The method for monitoring and ensuring 5G customized web service SLA according to claim 2, wherein the service minimum unavailability interval index = (impact factor x service threshold)/minimum unavailability interval measurement value;

   the minimum unavailable interval measurement value = the starting time of the current fault work order-the ending time of the last fault work order;

   the service threshold is set according to the type of the 5G service or after the actual investigation of operation and maintenance personnel;

   if the minimum unavailable interval measurement exceeds 360 days, then the minimum unavailable interval is 100%; for a fault-free work order, the minimum unavailable interval of the service is defaulted to 100%.
6. 6. The method for monitoring and ensuring SLA (service level agreement) of a 5G customized network service according to claim 2, wherein the step 1 is based on the index of service unavailability duration, service unavailability frequency and minimum unavailability interval, and determines the service availability according to the statistical rules of poor, general and good services and the business proportion rules of customers, specifically:

   1) If no poor and common services exist and good service indexes are all 100%, the service availability is 100%;

   2) When the poor percentage is more than or equal to 15%, the service availability takes the minimum value in the poor service indexes;

   3) When the ratio of the poor + the general service is more than or equal to 15%, the service availability takes the minimum value of the general service index;

   4) And when the items 1) to 3) are not met, the service availability takes a minimum value of good share ratio.
7. 7. The 5G customized network service SLA monitoring and ensuring method according to claim 1, wherein network availability comprises delay certainty, packet loss certainty, bandwidth rate certainty;

   network availability K _5G ：

   K _5G ＝0.1×K _Jitter +0.2×K _PackLoss +0.3×K _Delay +0.4×K _Speed

   Wherein, K _PackLoss Determining packet loss;

   K _Delay for RTT time delay, K _Jitter In order to jitter the time delay, it is,the two form a delay certainty;

   K _Speed bandwidth rate determinism.
8. 8. The 5G customized network service SLA monitoring and safeguarding method of claim 1, wherein step 2 refers to alarm rules and matches one by one, performs defined segment and reason analysis on alarms, and generates a report from the analysis result;

   and inserting the alarm and the generated report into a to-be-distributed dispatching list according to the matching rule, executing the fault dispatching list by the timed task, and sending the alarm to an executor in a short message or mail mode.

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