Information Technology Reference
In-Depth Information
If you specify a slot and port number, statistics for each 15-minute period will be displayed.
Most T1 errors are caused by misconfigured lines. Ensure that linecoding, framing, and clock source are
configured according to what the service provider recommends.
show controller t1 Conditions
The t1 controller can be in three states:
•
Administratively down
•
Down
•
Up
Is the Controller Administratively Down?
The controller is administratively down when it has been manually shut down. You should restart the
controller to correct this error.
Step 1
Enter enable mode.
maui-nas-03>
en
Password:
maui-nas-03#
Step 2
Enter global configuration mode.
maui-nas-03#
configure terminal
Enter configuration commands, one per line. End with CNTL/Z
.
maui-nas-03(config)#
Step 3
Enter controller configuration mode.
maui-nas-03(config)#
controller t1 0
maui-nas-03(config-controlle)#
Step 4
Restart the controller.
maui-nas-03(config-controlle)#
shutdown
maui-nas-03(config-controlle)#
no shutdown
Is the Line Up?
If the T1 controller and line are not up, check to see if you are seeing one of the following messages in
the
show controller t1
exec output:
Receiver has loss of frame.
or
Receiver has loss of signal.
