3Com NBX 100 Administrator's Manual - page 223
Viewing CSU State Information and Statistics
223
Viewing CSU State
Information and
Statistics
3C10165D E1 cards and 3C10116D T1 cards have an onboard channel
service unit (CSU). You can use the NBX NetSet utility to view near end
(local CSU) and far end (central office) state information and statistics
about each connected span.
To view CSU statistics:
1 Login to the NBX NetSet utility as Administrator and click Device
Configuration > Digital Line Cards.
2 In the Select Device Type list, select T1 Span List or ISDN PRI Span List and
then click Apply.
3 In the Span List dialog box, select a span and then click the near end and
far end statistics button you want.
Click the Help button in the statistics screen for descriptions of the
statistics categories.
T1 state information and statistics are reported in two formats - T1.231
format and AT&T TR54016 format. Both formats report the same
information but they use different terminology. E1 state information and
statistics are reported in a single format - ITU G.826.
Performance statistics are sampled every 15 minutes. The system saves up
to 24-hours of data in 15-minute intervals. By default, the statistics
screens display data from the most recent 15-minute interval. To see
other intervals or data from the entire 24-hour period, use the Select
Interval controls on the screen. You can display the currently selected data
interval in a bar chart by clicking the Graph button on the screen.
T1.231 Near End
To view T1 Span near end statistics in T1.231 format:
1 Log in to the NBX NetSet utility using the administrator username and
password.
2 In the Select Device Type box, select T1 Span List and then click Apply.
3 When the Span List appears, click a span and then click T.231 Near End.
to open the T.231 Near End Performance screen.
4 Click the Help button for details about each dialog box field.