System information

Chapter 6 Performance Management User's Manual
6-8 Viewing Port Intervals Statistics RADview-SC/TDMoIP IPmux-11
Parameter Remarks
ES Errored Seconds
A second containing one or more of the following events: CRC error, SEF (OOF), or AIS.
Note:
• An OOF defect is the occurrence of a framing bits error.
• If SES also occurs at the same time, ES will stop after 10 seconds.
SES Severely Errored Seconds
320 or more CRC error events, one or more SEF (OOF), or AIS. OOF defect indicates a
framing bits error.
UAS Unavailable Seconds
Number of seconds that the interface is unavailable. The system is unavailable after
10 continuous SES.
LCV Line Code Violations
For T1:
The sum of BPV and EXZ defects that occurred in a second.
BPV is the occurrence of a zero string greater than 15 (for AMI) or 7 (for B8ZS).
EXZ is the occurrence of a pulse of the same polarity as the previous pulse.
For E1:
The number of code violations. (Two consecutive bipolar violations of the same polarity).
6.7 Viewing Port Intervals Statistics
RADview can display Intervals Statistics, information and graphs that aggregate the
statistics over 15 minute intervals. The Interval statistics command displays
intervals statistics for the selected E1 or T1 port, in both table and graph formats.
This information is useful for assessing quality of service, for network
troubleshooting and planning purposes.

To view a list of statistics from previous intervals:
1. Click an E1/T1 port.
2. Select Statistics > Interval...
The Port Intervals Statistics dialog box appears.
The results of the previous intervals are displayed in the Port Intervals
Statistics table, below the graph.
• If system is running less than fifteen minutes, the following message is displayed:
“System is up less than 15 min. No intervals data.”
• After 900 or more Unavailable Seconds, the Ratios (AR, ESR, and SESR) display 0.
Note