Table B-14. Fields In The Stats -T Command Display - Nortel 5399 User Manual

Book A
Model 5399 Remote Access Concentrator Network Administrator's Guide for UNIX
Table B-14. Fields in the stats –T Command Display
Field Description
Alarm History Displays the first alarm that occurred after a boot or a
stats -T clear command, preceded by the time at which
the alarm occurred.
Current Alarms When NO SYNC is displayed, the
T1/PRI engine has lost frame synchronization and
enters the Red Alarm state. When nothing is displayed
for Sync, the T1/PRI engine is detecting frame
synchronization.
When LOSS OF SIGNAL is displayed, the T1/PRI
engine is not detecting pulses on the T1/PRI network
interface receiver. When LOSS OF SIGNAL is not
displayed, the T1/PRI network interface is receiving
pulses. The loss of signal condition causes the T1/PRI
engine to transmit AIS (all ones unframed) on the
network interface.
When BLUE is displayed, the T1/PRI engine is
receiving AIS (all ones unframed) from the network.
When BLUE is not displayed, the T1/PRI engine is not
receiving AIS.
When RED is displayed, the T1/PRI engine has
detected loss of frame synchronization. During this
condition, the T1/PRI interface is sending a Yellow
Alarm to the network. When RED is not displayed, the
T1/PRI engine is in frame synchronization.
When YELLOW is displayed, the T1/PRI engine is
receiving a Yellow Alarm from the network. When
YELLOW is not displayed, the T1 engine is not
receiving a Yellow Alarm from the network.
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Chapter 1 Network Administration
A-43