ZyXEL Communications MSC1000G User Manual page 464

Chapter 12 Statistics Screens
Table 221 Port Statistics: IMA Line Card (continued)
LABEL
Alarm Status
Poll Interval(s)
Stop
12.11.11.1 E1 Link Performance - Current 15 Minutes
To display the link performance of a port on the IMA line card for the current 15 minutes, click the
port number in the line card's statistics screen (see
Figure 305 Port Statistics: IMA Line Card: E1 Performance - Curr15
The following table describes the labels in this screen.
Table 222 Port Statistics: IMA Line Card: E1 Performance - Curr15
LABEL
Refresh
Flush
PerfCurr15Min
CV
EB
ES(secs)
SES(secs)
UAS(secs)
464
DESCRIPTION
This field displays the name(s) of alarm(s) that have occurred on the port.
The text box displays how often (in seconds) this screen refreshes. You may change the
refresh interval by typing a new number in the text box and then clicking Set Interval.
Click Stop to stop port statistic polling.
DESCRIPTION
Click this to update this screen.
Click this to clear the counters in this screen.
The following parameters are used to evaluate this port's performance during the current 15
minutes. Refer to ITU-T G.826 for more information.
The field displays the number of Code Violation seconds detected during the current 15
minutes.
The field displays the number of Errored Blocks detected during the current 15 minutes.
Errored Block (EB): a block in which one or more bits are in error.
The field displays the number of Errored Seconds detected during the current 15 minutes.
Errored Second (ES): any second during which an errored block occurs.
The field displays the number of Severely Errored Seconds detected during the current 15
minutes.
Severely Errored Seconds (SES): any second which contains more than or equal to 30%
errored blocks or defects.
The field displays the number of UnAvailable Seconds detected within the during the current
15 minutes.
UnAvailable Seconds (UAS): It is counted as unavailable seconds if more than 10 severely
errored seconds that have occurred.
Figure 304 on page 463).
Management Switch Card User's Guide