Transmission Network KPIs
Purpose
The purpose of these KPIs is to assist Transmission Network staff and management optimise throughput thereby helping reduce costs, and maximise profit.
They provide pointers at the Transmission Network performance in the business, both as individuals and contributory components of teams and departments.
KPIs use either a single parameter or a combination of parameters, often generated automatically by 'counters' whereby the output is a comprehensive performance indicator in itself.
These counters can be built into the Transmission Network tools, the Transmission Network management systems or programmed individually to suit local requirements.
Scope
The scope of these Key Performance Indicators is limited to activities, as defined by the organisation, to lie inder the relevant business area.
However the data used by and/or collected by the counters and measurement tools could originate from anywhere within - or without - the business.
Each individual KPI is reviewed to assess it's "
fitness for purpose" on a periodic basis as defined by the KPI owner.
This is a temporary message - once each individual 'scope" document is written, it will be replaced within the coding that produced this KPI document.
Definitions
Each KPI is described by the following items:
- KPI ID Number: contains the full name of the KPI.
- Target Value: contains the max or min threshold
- Frequency: describes the type of measurement i.e. daily, weekly, or monthly.
- Description: this item provides short explanation of the KPI.
- Formula: this item contains the formula composed by the counters for the KPI.
- Counters: this item contains counters used for calculation and described how they are triggered.
- Object Class: this item shows from which element the measurement statistical data are taken.
- Tools: this item shows which tool is used to calculate the KPI.
- Trigger: the event that starts the KPI measurement.
- Terminator: the event that stops the KPI measurement.
- Unit Range: this items shows the unit range value of the KPI.
- Review Period: this defines the aging process of the KPI. It helps management ensure it's use is relevant.
- Owner: this item reflects who has the authority to adjust the KPI paramaters and to whom any queries should be addressed concerning the measurements.
- Remark: this item is sometimes added to write notes and additional information.
- Process: the process or processes (or work instruction/procedure) to which this KPI is applicable.
A measurement type can have several sub-counters; therefore the used sub-counters are listed in brackets with following meanings as examples:
- [3]: sub-counter 3 has to be taken.
- [1,2,4]: sub-counters 1, 2 and 4 have to be added.
- [1 - 4, 7 - 10]: sub-counters 1, 2, 3, 4, 7, 8, 9 and 10 have to be added.
- [all]: all sub-counters have to be added.
Not all Definitions apply to every KPI. Where an element has no value in the database, it is not displayed.
Note that when the average of a series of inputs is calculated, this is taken to be the arithmetic MEDIAN.
Measurables
Details
| KPI TN1 |
STM ADM Availability |
| Target Value |
>99.999% |
| Frequency |
Weekly |
| Description |
This method will give the STM-ADM site availability rate within a granularity period. |
| Formula |
(1 – (UAS / Granularity)) * 100 |
| Counter Descriptions |
UAS (Number of Seconds Unavailability): the unavailability seconds of the active E1 ports of STM-ADM site in a specified observation period.
Granularity: the interval time during measurement period.
|
| Object Class |
hiT7070, hiT7050 |
| Tools |
TNMS |
| Unit Range |
% |
| Remarks & Comment |
UAS is automatically generated by TNMS according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN2 |
Link Availability >=64E1 |
| Target Value |
>99.999% |
| Frequency |
Weekly |
| Description |
This method will give the link availability rate for which the link capacity is greater or equal to 64E1 within a granularity period |
| Formula |
(1 – (UAS / Granularity)) * 100 |
| Counter Descriptions |
UAS (Number of Seconds Unavailability): the unavailability seconds of the active E1 ports of STM-ADM site in a specified observation period.
Granularity: the interval time during measurement period.
|
| Object Class |
hiT7070, hiT7051 |
| Tools |
TNMS |
| Unit Range |
% |
| Remarks & Comment |
UAS is automatically generated by TNMS according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN3 |
Link Availability >=16E1 |
| Target Value |
>99.999% |
| Frequency |
Weekly |
| Description |
This method will give the link availability rate for which the link capacity is greater or equal to 16E1 within a granularity period. |
| Formula |
(1 – (UAS / Granularity)) * 100 |
| Counter Descriptions |
UAS (Number of Seconds Unavailability): the unavailability seconds of the active E1 ports of STM-ADM site in a specified observation period.
Granularity: the interval time during measurement period.
|
| Object Class |
hiT7070, hiT7052 |
| Tools |
TNMS |
| Unit Range |
% |
| Remarks & Comment |
UAS is automatically generated by TNMS according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN4 |
Link Availability >=8E1 |
| Target Value |
>99.999% |
| Frequency |
Weekly |
| Description |
This method will give the link availability rate for which the link capacity is greater or equal to 8E1 within a granularity period. |
| Formula |
(1 – (UAS / Granularity)) * 100 |
| Counter Descriptions |
UAS (Number of Seconds Unavailability): the unavailability seconds of the active E1 ports of STM-ADM site in a specified observation period.
Granularity: the interval time during measurement period.
|
| Object Class |
hiT7070, hiT7053 |
| Tools |
TNMS |
| Unit Range |
% |
| Remarks & Comment |
UAS is automatically generated by TNMS according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN5 |
Link Availability <8E1 |
| Target Value |
>99.999% |
| Frequency |
Weekly |
| Description |
This method will give the link availability rate for which the link capacity is less than 8E1 within a granularity period. |
| Formula |
(1 – (UAS / Granularity)) * 100 |
| Counter Descriptions |
UAS (Number of Seconds Unavailability): the unavailability seconds of the active E1 ports of STM-ADM site in a specified observation period.
Granularity: the interval time during measurement period.
|
| Object Class |
SRAL XD |
| Tools |
Netviewer |
| Unit Range |
% |
| Remarks & Comment |
SES is automatically generated by Netviewer according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN6 |
Bit Error Rate Long Haul (L>=30 km) |
| Target Value |
<10e-6 |
| Frequency |
Weekly |
| Description |
This method will give the Bit Error Rate of long haul for which the link distance is greater than 30 km. (sample 10 links per month per work region). |
| Formula |
SES/Granularity |
| Counter Descriptions |
SES (Number of Severely Errored Seconds): represents the seconds during which one of the following conditions is present:
Percentage of error blocks equal to or higher than 30%
Percentage of at least a special event called a “defect” (the classification of the “defects” for the PDH system is: Loss of Signal (LOS), Alarm Indication Signal (AIS), Loss of Frame Alignment (LOF)).
Granularity: the interval time during measurement period.
|
| Object Class |
SRA4, SRTIF, SRAL XD |
| Tools |
Netviewer |
| Unit Range |
No Units |
| Remarks & Comment |
SES is automatically generated by Netviewer according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN7 |
Bit Error Rate Short Haul (20km
|
| Target Value |
<10e-6 |
| Frequency |
Weekly |
| Description |
This method will give the Bit Error Rate of short haul which link distance is between 20 to 30 km. (sample 30 links per month per work region). |
| Formula |
SES/Granularity |
| Counter Descriptions |
SES (Number of Severely Errored Seconds): represents the seconds during which one of the following conditions is present:
Percentage of error blocks equal to or higher than 30%
Percentage of at least a special event called a “defect” (the classification of the “defects” for the PDH system is: Loss of Signal (LOS), Alarm Indication Signal (AIS), Loss of Frame Alignment (LOF)).
Granularity: the interval time during measurement period.
|
| Object Class |
SRA4, SRTIF, SRAL XD |
| Tools |
Netviewer |
| Unit Range |
No Units |
| Remarks & Comment |
SES is automatically generated by Netviewer according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN8 |
Bit Error Rate Access Microwave (L<20 km) |
| Target Value |
<10e-6 |
| Frequency |
Weekly |
| Description |
This method will give the Bit Error Rate of access microwave for which link distance is less than 20 km. (sample 50 links per month per work region). |
| Formula |
SES/Granularity |
| Counter Descriptions |
SES (Number of Severely Errored Seconds): represents the seconds during which one of the following conditions is present:
Percentage of error blocks equal to or higher than 30%
Percentage of at least a special event called a “defect” (the classification of the “defects” for the PDH system is: Loss of Signal (LOS), Alarm Indication Signal (AIS), Loss of Frame Alignment (LOF)).
Granularity: the interval time during measurement period.
|
| Object Class |
SRA4, SRAL XD |
| Tools |
Netviewer |
| Unit Range |
No Units |
| Remarks & Comment |
SES is automatically generated by Netviewer according to ITU-T G826 standard. |
| Process |
|
|
| KPI TN9 |
Bit Error Rate Fibre Link |
| Target Value |
<10e-6 |
| Frequency |
Weekly |
| Description |
This method will give the Bit Error Rate of optical fibre for which link distance is unspecified. |
| Formula |
SES/Granularity |
| Counter Descriptions |
SES (Number of Severely Errored Seconds): represents the seconds during which one of the following conditions is present:
Percentage of error blocks equal to or higher than 30%
Percentage of at least a special event called a “defect” (the classification of the “defects” for the PDH system is: Loss of Signal (LOS), Alarm Indication Signal (AIS), Loss of Frame Alignment (LOF)).
Granularity: the interval time during measurement period.
|
| Tools |
Netviewer |
| Unit Range |
No Units |
| Remarks & Comment |
SES is automatically generated by Netviewer according to ITU-T G826 standard. |
| Process |
|
|