DS1 Line Status Alarm

This alarm is applicable only to products supporting digital PRI interfaces (Mediant 500, Mediant 800, Mediant 1000 and Mediant 3100).

dsx1LineStatusChange

Alarm

dsx1LineStatusChange

OID

1.3.6.1.2.1.10.18.15.0.1

Default Severity

Major on raise; Clear on clear

Source Varbind Text

Interfaces#0/Trunk#<m>, where m is the trunk interface number, 1 being the first trunk

Event Type

communicationsAlarm

Probable Cause

Severity

Text

Additional Info1,2,3

DS1 Line Status

Updated DS1 Line Status.

This variable indicates the Line Status of the interface. It contains loopback, failure, received 'alarm' and transmitted 'alarms' information.

dsx1LineStatus is a bitmap represented as a sum, so it can represent multiple failures (alarms) and a LoopbackState simultaneously.
dsx1NoAlarm must be set if and only if no other flag is set.
If the dsx1loopbackState bit is set, the loopback in effect can be determined from the dsx1loopbackConfig object. The various bit positions are:

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1 - dsx1NoAlarm: No alarm present

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2 - dsx1RcvFarEndLOF: Far end LOF (also known as Yellow Alarm)

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4 - dsx1XmtFarEndLOF: Near end sending LOF Indication

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8 - dsx1RcvAIS: Far end sending AIS

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16 - dsx1XmtAIS: Near end sending AIS

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32 - dsx1LossOfFrame: Near end LOF (also known as Red Alarm)

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64 - dsx1LossOfSignal: Near end Loss Of Signal

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128 - dsx1LoopbackState: Near end is looped

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256 - dsx1T16AIS: E1 TS16 AIS

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512 - dsx1RcvFarEndLOMF: Far End Sending TS16 LOMF

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1024 - dsx1XmtFarEndLOMF: Near End Sending TS16 LOMF

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2048 - dsx1RcvTestCode: Near End detects a test code

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4096 - dsx1OtherFailure: Any line status not defined here

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8192 - dsx1UnavailSigState: Near End in Unavailable Signal State

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16384 - dsx1NetEquipOOS: Carrier Equipment Out of Service

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32768 - dsx1RcvPayloadAIS: DS2 Payload AIS

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65536 - dsx1Ds2PerfThreshold: DS2 Performance Threshold Exceeded