Testing

7

Detecting Problems

The DSU can detect and report problem conditions and perform diagnostic tests. The DSU offers a number of indicators to alert you to possible problems:

HLEDs ± Refer to the DSU LEDs section in Chapter 6.

HSNMP Traps ± For information on traps, refer to the Configuring SNMP Traps section in Chapter 8.

HHealth and status messages and network performance statistics. Refer to Monitoring the DSU, Chapter 6.

HAlarm Condition Indications.

The following table shows the available indicators of alarm conditions on the network interface and the User Data port.

Alarm Condition

SNMP

Trap

ATI Status

ASCII Alarm

Alarm

Screen

(if configured)

LED

 

 

 

Specific

LED

Crossed Pairs

Y1

Y

Y

Y

N

No Signal (NS)

Y1

Y

Y

Y

Y

Out of Service (OOS)

Y1

Y

Y

Y

Y

Out of Frame (OOF)

Y1

Y

Y

Y

Y

Excessive Bipolar

Y1

Y

Y

Y

N

Violations (BPV)

 

 

 

 

 

 

 

 

 

 

 

Inband Framing Error

N

Y

Y

Y

N

 

 

 

 

 

 

DTR Off

Y1

Y

N

N

Y

1Link Up/Link Down Trap

To configure ASCII Alarms, use the Alarms & Traps options screen. Refer to Alarms & Traps Options, Table A-8. For additional information regarding ASCII alarm generation, refer to the Alarm Messages section of Chapter 8.

7610-A2-GB20-10

November 1997

7-1

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Paradyne SNMP DSU Testing, Detecting Problems, Alarm Condition, Trap ATI Status Ascii Alarm Screen If configured, Specific