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Alarms and Conditions

 

Table 1: Alarms and Conditions

Alarm/condition

Description

Default Severity

Service Affecting

airFilterAbsence

Air filter absent. No air filter has been detected in the BTI7814 chassis. An air filter is mandatory in the BTI7814 chassis. This alarm does not apply to the other chassis types.

Major

No

ais-l

Alarm indication signal, line, SONET. The local port has received an AIS-L signal from the NE at the far end of the fiber. This indicates that an SF condition exists upstream of (and towards) the local node.

Not alarmed

Yes

apr

Automatic power reduction. For safety reasons, the local port has automatically reduced laser power because it has detected optical back reflection exceeding the high threshold.

This can occur if the fiber is not plugged in properly.

Critical

Yes

apsd

Automatic power shutdown. The local port has automatically shut down its laser because the receive optical power has dropped below the receive LOL threshold.

This can occur if the fiber is not plugged in properly or if there is a problem at the far-end transmitter or if there is a problem in the fiber itself.

Critical

Yes

bdi

Backward defect indication, OTN. The local port has received a BDI signal from the NE at the far end of the fiber. This indicates that an SF condition exists downstream of (and away from) the local node.

Not alarmed

No

cfgFail

A 40ge interface has been provisioned on a client port on a UFM6, but the UFM6 cannot accept the provisioning because the correct SERDES configuration has not been applied.

To apply the SERDES configuration, reseat or perform a cold reload of the UFM.

Not reported

Yes

contComS

Control communications failure, span section, amplifier. OSC control communications with the NE at the far end of the span section have failed.

Check for OSC alarms on the far end NE and resolve.

Major

Yes

diskHighUsage

Disk high usage. Disk usage has exceeded 90%. This is typically caused by an over-accumulation of log files.

Use the CLI logging commands to delete unwanted log files, to move log files off the NE, or to set up automatic log rotation.

This alarm clears when disk usage falls below 70%.

Major

No

envCurrentHighTh

Current above high threshold. The output current at the AC PEM is above the high current threshold.

Major

Yes

envCurrentLowTh

Current below low threshold. The output current at the AC PEM is below the low current threshold.

Major

Yes

envTempHighTh

Environment temperature above high threshold. The temperature at the indicated module has exceeded the high temperature threshold. The fan speed in the chassis is increased to the maximum.

Major

Yes

envTempLowTh

Environment temperature above low threshold. The temperature at the indicated module has exceeded (above) the low temperature threshold. The fan speed in the chassis begins to increase.

Not alarmed

Yes

envVoltHighTh

Environment voltage above high threshold on the AC PEM.

The input AC voltage is greater than 255 VAC.

Continued operation might cause equipment damage.

Major

Yes

envVoltLowTh

Environment voltage below low threshold (on the PEM).

AC PEM: The input AC voltage is less than 90 VAC.

DC PEM: The input DC voltage is less than 40 VDC.

Continued operation might cause equipment damage.

Major

Yes

eqptBrownout

Equipment brownout. The input voltage to a UFM has dropped below the brownout threshold.

UFM3 and UFM4 modules are automatically cold reloaded.

Major

Yes

eqptComm

Equipment management communications failure. The CMM is not able to communicate with the specified equipment. Depending on the reason behind this alarm, traffic might be affected.

Major

Yes

eqptDgrd

Equipment degrade. This is raised when UFM or BIC initialization fails.

Major

Yes

eqptFail

Equipment fail. Either a hardware self test has detected faulty hardware or an automatic re-timer firmware upgrade has failed.

Critical

Yes

eqptMism

Equipment mismatch. The installed equipment does not match the provisioned equipment.

Critical

Yes

eqptMiss

Equipment missing. Equipment is provisioned but not physically installed.

Critical

Yes

fanSpeedLowTh

Fan speed below low threshold.

This can be caused by a faulty cooling unit or by a problem with the power entry module.

Major

Yes

feci

Far end node configuration mismatch.

Verify the configuration at the far end NE.

Major

Yes

feim

Far end node identification mismatch.

Verify the configuration at the far end NE.

Major

Yes

firmUpgrdInProg

Firmware upgrade in progress.

Not alarmed

No

firmUpgrdFail

Firmware upgrade failed.

Major

No

firmUpgrdReqd

Firmware upgrade required. The version of firmware running on the module does not match the version of firmware required by the current software load.

Major

No

forced

Forced protection switch active.

The operator has forced a protection switch. The force remains active until a switch release is invoked.

Not alarmed

No

highBer

High bit error rate. The local port has detected a bit error rate in the received signal higher than the threshold. This can be caused by a problem in the fiber or by excessive attenuation in the signal.

Major

No

invUnknown

Inventory unknown. The installed equipment is not recognized.

Ensure that the software version supports the specified equipment.

Major

No

inventoryUnsupp

Inventory item not supported. A QSFP28 transceiver is installed in a port that supports only QSFP+ transceivers.

Major

Yes

isisAdjDown

IS-IS adjacency down. An IS-IS adjacency has gone down. This link will no longer be considered for routing.

Major

Yes

laserFail

Laser failure.

Critical

Yes

laserTempHighTh

Laser temperature above high temperature threshold.

Major

No

laserTempLowTh

Laser temperature below low temperature threshold.

Major

No

lck

ODU locked. The port has received an ODU-LCK signal from the NE at the far end of the fiber. This indicates that a transmitting interface at an upstream node has been administratively disabled.

Critical

Yes

lf

Local fault. The local port has received an LF signal from the NE at the far end of the fiber. This indicates that an SF condition exists upstream of the local node.

Not alarmed

No

lockout

Lockout of protection.

The operator has locked out a line for protection. The lockout protection switch remains active until a switch release is invoked.

Not alarmed

No

lof

Loss of frame alignment.

Critical

Yes

lolightRx

Loss of light, receive. The optical power received has dropped below the LOL threshold.

Note: In some ROADM network topologies with ILAs deployed, amplified spontaneous emissions (ASE) might accumulate sufficiently to cause this alarm to clear on provisioned but unoccupied optical channels. (The ASE will not be high enough to affect optical performance, however.)

Critical

Yes

lolightTx

Loss of light, transmit. The optical power transmitted has dropped below the LOL threshold.

Note: In some ROADM network topologies with ILAs deployed, amplified spontaneous emissions (ASE) might accumulate sufficiently to cause this alarm to clear on provisioned but unoccupied optical channels. (The ASE will not be high enough to affect optical performance, however.)

Major

Yes

lom

Loss of multiframe. The multiframe alignment process is in the out-of-multiframe (OOM) state.

Critical

Yes

los

Loss of signal. The local port has detected a loss of received signal power.

Critical

Yes

loSpecRx

Loss out of specification, receive. The optical receive loss is outside the allowable range configured.

Critical

Yes

loSync

Loss of synchronization. The received signal cannot be synchronized.

Critical

Yes

lpbk

Loopback operated. The operator has initiated loopback on the local port.

Not alarmed

This setting should not be changed.

No

memHighUsage

Memory high usage. Memory usage has exceeded 90%.

This alarm clears when memory usage falls below 70%.

Major

No

modTempHighTh

Module temperature above high threshold. The temperature on the 100G Coherent MSA XCVR has exceeded the high temperature threshold.

Major

No

modTempLowTh

Module temperature below low threshold. The temperature on the 100G Coherent MSA XCVR is below the low temperature threshold.

Major

No

modTempShutdown

Module temperature shutdown. The 100G Coherent MSA XCVR has exceeded the high temperature shutdown threshold and has been shut down.

Critical

Yes

ms-ais

Multiplex section alarm indication signal, SDH. The local port has received an MS-AIS signal from the NE at the far end of the fiber. This indicates an SF condition upstream of the local node.

Not alarmed

Yes

ms-rdi

Multiplex section remote defect indication, SDH. The local port has received an MS-RDI signal from the NE at the far end of the fiber. This indicates an SF condition downstream of the local node.

Not alarmed

No

nonCoLocatedController

Controllers are in different chassis. In a multichassis configuration, the CMMs that act as the system controllers must be in the same chassis.

Follow the instructions to set up a proper multichassis configuration.

Critical

Yes

obrHt

Optical back reflection high threshold exceeded. The optical back reflection has exceeded the high threshold.

This can occur if the fiber is not plugged in properly.

Minor

Yes

ochAis

Alarm indication signal, OCH. The OCH has received an AIS signal from the NE at the far end of the fiber. This indicates that an SF condition exists upstream of (and towards) the local node.

Not alarmed

Yes

ochOci

Open connection indication, OCH. The OCH has received an OCH-OCI signal from the NE at the far end of the fiber. This usually indicates a missing optical cross-connect upstream.

Critical

Yes

ochUeq

OCH unequipped.

Critical

Yes

oci

Open connection indication, ODU. The interface has received an ODU-OCI signal from the NE at the far end of the fiber. This usually indicates a missing cross-connect upstream.

Note: The local interface that receives the ODU-OCI signal raises this alarm only if the local interface is part of a cross-connect. If the local interface is not part of a cross-connect, the received ODU-OCI signal is ignored.

An interface transmits an ODU-OCI signal downstream if the interface is open (that is, not part of any cross-connect).

For multiplexed ODU interfaces, the ODU-OCI signal is transmitted (and therefore received) on the containing ODU interface, not on the individual ODU subinterfaces. The containing ODU interface transmits the ODU-OCI signal if none of the contained ODU subinterfaces is part of a cross-connect. The containing ODU interface stops transmitting the ODU-OCI signal if at least one of the contained ODU subinterfaces is part of a cross-connect. The ODU-OCI signal on multiplexed interfaces does not indicate which specific subinterface is open (that is, not part of a cross-connect).

Critical

Yes

odtgMism

ODTG Mismatch. The Optical Data Tributary Group (ODTG) configuration on a multiplexed interface is inconsistent at the two ends of the fiber. This means that the ODU subinterface cross-connected at the local end does not match the ODU subinterface cross-connected at the far end. This alarm is raised against the containing ODU4 interface.

Verify that both ends are configured for the same ODU subinterface.

Critical

Yes

odu-ais

ODU alarm indication signal. The interface has received an ODU-AIS signal from the NE at the far end of the fiber. This indicates that an SF condition exists upstream of (and towards) the local node.

In addition to standard use of ODU-AIS signals, the BTI7800 originates an ODU-AIS signal in the following situations:

  • A multiplexed ODU subinterface transmits an ODU-AIS signal when the subinterface detects an ODTG tributary mismatch. See odtgMism.

  • On a UFM6, an optical channel transmits a default ODU4 signal containing ODU-AIS for each ODU4 interface not created.

Not alarmed

Yes

oduMism

ODU Mismatch. The ODU type in the received ODU signal does not match the expected type.

Verify that both ends are configured for the same ODU (both ODU2 or both ODU2e or both ODU4).

Not alarmed

No

omsAis

Alarm indication signal, OMS. The local OMS has received an AIS signal from the NE at the far end of the fiber. This indicates that an SF condition exists upstream of (and towards) the local node.

Not alarmed

Yes

oneCableDisconnected

One multichassis cable disconnected.

Major

Yes

oprHighTh

Optical power received above high threshold.

Major

No

oprLowTh

Optical power received below low threshold.

Major

No

oprHighFail

Optical power received high fail.

Not alarmed

No

optHighTh

Optical power transmitted above high threshold.

Major

No

optLowTh

Optical power received below low threshold.

Major

No

partitionFault

Disk partition fault detected.

Perform a warm reboot of the affected module.

Major

No

posRxHigh

Receive power out of specification, high. The optical power received is above the high threshold.

Minor

Yes

posRxLow

Receive power out of specification, low. The optical power received is below the low threshold.

Note: In some ROADM network topologies with ILAs deployed, amplified spontaneous emissions (ASE) might accumulate sufficiently to cause this alarm to clear on provisioned but unoccupied optical channels. (The ASE will not be high enough to affect optical performance, however.)

Major

Yes

posTx

Power out of specification, transmit. The optical power transmitted is below the POS low threshold, or above the POS high threshold.

Note: In some ROADM network topologies with ILAs deployed, amplified spontaneous emissions (ASE) might accumulate sufficiently to cause this alarm to clear on provisioned but unoccupied optical channels. (The ASE will not be high enough to affect optical performance, however.)

Critical

Yes

powerAbsent

No power available.

AC PEM: The input AC voltage to the PEM is less than 90 VAC or greater than 255 VAC, and the output DC voltage of the PEM is less than 40 VDC or greater than 60 VDC.

DC PEM: The input and output DC voltages of the PEM are less than 40 VDC or greater than 60 VDC.

Continued operation might cause equipment damage.

Critical

Yes

prbs

PRBS test activated.

Not alarmed

This setting should not be changed.

No

preFecBerTh

Pre-FEC bit error rate above high threshold.

Minor

No

pyldMism

Payload mismatch, ODU. The expected payload type within the ODU signal is not the same as the received payload type.

Verify the configuration along the payload path.

Critical

Yes

rdi-l

Remote defect indication, line. The local port has received an RDI-L signal from the NE at the far end of the fiber. This indicates an SF condition exists downstream of the local node.

Not alarmed

No

rf

Remote fault. The local port has received an RF signal from the NE at the far end of the fiber. This indicates that an SF condition exists at a node downstream of the local node.

Not alarmed

No

scmNmiDown

System controller management (SCM) interface down.

Major

Yes

scmNoNmConn

No network management connectivity on either system controller management (SCM) modules.

Critical

Yes

sd

Signal degrade. The local port is in a signal degrade state due to a sufficient number of errors in the received signal.

Minor

No

tLossRxHt

Loss above high threshold, receive. The measured optical power loss in the receive fiber is above the high threshold.

Minor

Yes

tLossRxLt

Loss below low threshold, receive. The measured optical power loss in the receive fiber is below the low threshold.

Minor

Yes

tim

Trace identifier mismatch. The expected trace identifier is different from the actual trace identifier received.

Verify fiber connectivity and trace ID configuration at the far end.

This alarm clears when the expected trace identifier is received.

Major

No

transmitterDegrade

Transmitter degrade (of the far-end transmitter). This alarm is raised by the receiver when the Delta-Q factor difference between X and Y polarization states of the received signal has reached the configured Delta-Q threshold.

The alarm clears when the Delta-Q factor difference is below the configured Delta-Q threshold for three consecutive one-second intervals.

Major

No

upgr

Upgrade In progress.

This alarm clears when the upgrade is finished.

Minor

Yes