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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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