ZyXEL Communications MSC1024G Series User Manual page 432

Chapter 14 Statistics Screens
Table 200 Port Statistics: IMA Line Card (continued)
LABEL
Poll Interval(s)
Stop
14.11.9.1 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 289 Port Statistics: IMA Line Card: E1 Performance - Curr15
The following table describes the labels in this screen.
Table 201 Port Statistics: IMA Line Card: E1 Performance - Curr15
LABEL
Refresh
Flush
PerfCurr15Min
CV
EB
ES(secs)
SES(secs)
UAS(secs)
432
DESCRIPTION
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 288 on page
MSC1000G/1024G/1224G Series User's Guide
431).