3.3 Performance management

Performance management supports performance monitoring by collecting and thresholding performance parameter counters against 15-miniute intervals for each interface and module respectively. Users can query the data of these parameters through CLI and Web-GUI.

Performance statistics include the following:

1.Statistics for current interval:

A real-time aspect contains the reflection of the current value situation before the new interval. The current value includes values of current 15-min interval and current 1-day interval.

2.Statistics history at 15-minute basis:

The system stores previous 96 statistics of PM parameters at 15-min interval for retrieving.

3.Statistics history at 1-day basis:

The system stores previous 1 statistics of PM parameters at 1-day interval for retrieving.

Most of the performance parameter thresholds are user-programmable. The IDL-2402 uses a threshold crossing alert (TCA) to notify the management system when one of the counts during a measurement interval exceeds its threshold.

The TCA contains the following information:

–Specific interface involved

–Error condition identifying the measurement type

–Value of the parameter

–Occurrence date and time of the event

The performance management also provides the traffic counter including transmitted packets, error packets and discarded packets for each interface (network and subscriber interface) and ATM cell counter in both transmit and receive direction. Users can observe these data through CLI and Web-GUI.

ADSL PM

The IDL-2402 provides the following ADSL PM statistics:

Item

Description

ATUC_LOS

Loss of signal count

ATUC_LOF

Loss of frame count

ATUC_LOM

Loss of margin count

ATUC_LOL

Loss of link count

ATUC_ES

Errored Seconds

ATUC_SES

Severely Errored Seconds

ATUC_UAS

Unavailable Seconds

ATUC_ReInitCounter

The number of times the modem left showtime and tried to

 

re-initialize the line because of detection of a persistent

 

defect

ATUC_FailedInitCounter

The number of times the modem tries to initialize the line

 

but fails.

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