Specifications

7-13
Cisco MGX 8260 Command Line Interface Guide
Release 1.2, Part Number 78-10987-01 Rev. B0, January, 2002
Chapter 7 Performance Monitoring
Monitoring SONET Performance
Viewing Interval DS3 Statistics
Interval statistics are collected by each DS3 Interface for the previous 24 hours of operation. The
24 hours are broken into 96 15-minute intervals, where interval 1 is the most recent and 96 is the oldest.
As time progresses, the system drops the oldest interval and adds the latest one, creating a sliding
24-hour window that moves with time.
To list interval statistics for a DS3, enter the lsds3intst command, specifying the slot and line number
and the interval of interest. The system displays the interval statistics:
=======================================================================
DS3 Line Interval Statistics Entry (lsds3intst)
=======================================================================
DS3 Slot.Line : 14.501
Interval : 1
P-bit Errored Seconds : 3
P-bit Severely Errored Seconds : 3
Severely Errored Framing Seconds : 3
Path UnAvailable Seconds : 896
Line Code Violations : 0
P-bit Code Violations : 14966
Line Errored Seconds : 0
Alarm Indication Signal Seconds : 0
Viewing DS3 Real-Time Alarm Statistics
To view real-time statistics for a single DS3, enter the lsds3lnst command, specifying the slot and line
number, delimited by a period. The system displays the following real-time DS3 information:
=======================================================================
DS3 Line statistics (lsds3lnst)
=======================================================================
DS3 Line : 14.501
Loss of Signal : 58884
Out Of Frame : 58884
Remote Alarm Indication : 0
Framing Pattern Errors : 0
PBit Parity Errors : 0
Far End Block Errors : 0
Excessive Zero Errors : 0
Clearing Real-Time Statistics
To clear real-time statistics, enter the clrds3lnst command, specifying the slot and line number,
delimited by a period.
The system clears the real-time statistic.
Monitoring SONET Performance
The system collects performance statistics at three levels:
• Section