Chapter 13. SNMP Management
DS1 Traps
The ATLAS 550 supports RFC1406, the DS1 standard MIB, as well as the ADTRAN DS1 MIB, an extension to RFC1406. The ADTRAN DS1 group al- lows you to send traps for DS1 alarm failures (DS1 alarm traps) and perfor- mance threshold crossing alerts (DS1 alert traps).
DS1 Alarm Traps
The ADTRAN DS1 extension MIB contains a DS1 Alarm Table which holds entries that enable status bits to send an alarm trap. Each Alarm Table row entry corresponds to a DS1 interface managed by the device. DS1 line status is reported in the
When enabled, the ATLAS 550 sends alarm traps to the each member of the trap destination list upon detecting status bit changes in dsx1LineStatus. Each status change sets an event bit = 1 in the adDS1LineEvent variable in the DS1 alarm table. If you have previously set the corresponding enable bit in the adDS1LineArm variable equal to one and if adDS1AlarmEnable = On, then the ATLAS 550 sends an alarm trap message. A single alarm trap message may report multiple event changes.
Clearing DS1 Alarm Traps
The ATLAS 550 clears the event bits after sending the trap message or send- ing the response to a Get request for the adDS1LineEvent variable.
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Alarm | Severity | Description |
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adATLAS550NoAlarm | Warning | No alarms are present. |
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adATLAS550RxYellow | Minor | The Far End is experiencing Red Alarm (a.k.a. Yellow Alarm). |
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adATLAS550TxYellow | Warning | The Near End is sending Loss Frame Indication (a.k.a. Yellow Alarm). |
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adATLAS550RxAIS | Minor | The Far End is sending Alarm Indication Signal (a.k.a. Blue Alarm). |
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adATLAS550TxAIS | Warning | The Near End is sending Alarm Indication Signal (a.k.a. Blue Alarm). |
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adATLAS550RedAlarm | Major | The Near End is experiencing Loss of Frame (a.k.a. Red Alarm). |
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adATLAS550LOS | Major | The Near End is experiencing Loss of Signal. |
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DS1 Alert Traps
The ADTRAN DS1 extension MIB contains the DS1 Alert Table which holds entries that enable event bits to send an alert trap. Each Alert Table row en- try corresponds to a DS1 interface managed by the device. A single alert trap may report multiple event changes.
RFC1406 also defines a series of Current and Total Alert threshold values. You can enable the ATLAS 550 to send an Alert Trap to each member of the trap destination list when accumulated error statistics exceed these
ATLAS 550 User Manual |
