QA Cafe - Knowledgebase - How do I check the status of the T1/E1 interface?

Knowledge Base > WAN Cards (T1/E1 and V.35) > How do I check the status of the T1/E1 interface?

How do I check the status of the T1/E1 interface?

You can check the actual line status of the T1 interface using the /usr/sbin/wanpipemon command.

[root@oakbank cdrouter]# /usr/sbin/wanpipemon -i wp1chdlc -c Ta

Network interface running Cisco HDLC protocol...
***** T1 Alarms *****

ALOS:   ON      | LOS:  OFF
RED:    ON      | AIS:  OFF
YEL:    OFF     | OOF:  ON


***** T1 Performance Monitoring Counters *****

Framing Bit Error:      253     Line Code Violation:    53116
Out of Frame Errors:    14      Bit Errors:             2103

A RED alarm is triggered when the CSU (channel service unit) cannot synchronize with the framing pattern on the T1/E1 line. When the T1 line is up and running, all of the T1 alarms should be in the OFF state.

[root@oakbank cdrouter]# /usr/sbin/wanpipemon -i wp1chdlc -c Ta

Network interface running Cisco HDLC protocol...
***** T1 Alarms *****

ALOS:   OFF     | LOS:  OFF
RED:    OFF     | AIS:  OFF
YEL:    OFF     | OOF:  OFF


***** T1 Performance Monitoring Counters *****

Framing Bit Error:      254     Line Code Violation:    61307
Out of Frame Errors:    14      Bit Errors:             2104