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Checklist for T1 Alarms and Errors

To checkT1 alarms and errors.

Table 1 provides the links and commands for checking T1 alarms and errors.

Table 1: Checklist for T1 Alarms and Errors

Tasks	Command or Action
Display T1 Alarms and Errors	show interfaces t1-fpc/pic/port extensive
Locate Most Common T1 Alarms and Errors
Locate Loss of Signal and Loss of Frame Alarms	Check the connection between the router port and the first T1 network element.
Locate Alarm Indication Signal Alarms	Check the T1 network element connected to the T1 interface.
Locate an Incoming Yellow Alarm	Check the cable between the T1 interface and the directly connected T1 network element.