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B Channel(s) Up Time
This field display the time the ISDN channels, B1 or B2, have stayed up since last reset. Both channels up
for 1 minute is counted as 2 minutes.
B Channel(s) In Use
This field displays the percentage of time the B channel, B1 or B2, has stayed up since last reset. 50% in
use may mean one B channel is up all the time, and the other B is down all the time or both channels are
up for 50% of the time. 100% in use means both B channels are up all the time.
B1 Utilisation
This field displays the current B1 channel utilization, ranging for 0 to 100%. 0% means the channel is
currently idle. 100% means full 64 Kbps of the B channel bandwidth is busy in data traffic delivery.
B2 Utilisation
This field displays the current B2 channel utilization, ranging for 0 to 100%. 0% means the channel is
currently idle. 100% means full 64 Kbps of the B channel bandwidth is busy in data traffic delivery.
Good Frames
This field displays the number of good frames that are received or transmitted on the corresponding
channel.
Error Frames
This field displays the number of error frames received or transmitted on the corresponding channel. The
error conditions are : mis-alignment, or CRC error.
Statistics Trace Sub-menu
The Statistics Trace (see Figure 0-18, Statistics Trace Window) menu provides the trace information of the
ISDN router. This menu is the most useful menu for diagnostic purpose.