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Term

Goto:   FRITZ!OS   -   SMW-Browser

Details

KPI is a generic term, which is also used for performance metering and monitoring data in computer systems and networks.

The data is gathered by sensors, as it is done for Monitoring and forwarded to some data collection service.
From there it could be forwarded by some means to a centralized interpreting service for further analysis.

This all sounds similar to Monitoring using SNTP or UPnP / TR-064, yes it is, but the information gathered is more in depth.
KPI is not limited to Graphing samples of sensor values over time but can have arbitary data structure and complexity.

Of course subsets of KPI data could be used for Graphing.

FRITZ!OS

FRITZ!OS started to collect KPI data in fw 6.83. The data is sent from numerous sensors and collected by ctlmgr.

To trigger KPI submission ctlmgr fires the KPI_PRE_INFORM_NOTIFY event in the AVMIPC-Datastore. All sensor processes
are subscribed to this event and send their sensor data as JSON attachments to ctlmgr using the me_KPI.ctl endpoint.

Sensors which are subscribed to KPI_PRE_INFORM_NOTIFY:

DOCSIS quality does not seem to use KPI, since it is monitored by SNMP.

Not subscribed, triggered by services:

Not subscribed, trigger is subject to research:

Firmware versions marked with a ? are the minimum findings in Supportdata-Probes, which are always incomplete.

There is no user interface to KPI, but some occurences in supportdata:

kpid -p                      # from supportdata.basis
aicmd meshd kpi kpi show     # from supportdata.meshd
voipkpid -n 20               # from supportdata

Unused known commandline interfaces:

aha -c"kpi list all"         # unused, does not work (any more?)
aicmd meshd kpi kpi send     # unused

To research:

SMW-Browser

Information is currently being retrieved from the backend.
 

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