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LaserFail

 

Table 1: Alarm Details

Parameter

Description

Code

laserFail

Description/Cause

Laser Fail: The transmit laser of the transceiver has failed.

Entities Affected

  • Optical channel interfaces (see respective table below.)

  • OTN OTU interfaces (see respective table below).

  • Ethernet interfaces (see respective table below).

  • SONET/SDH interfaces (see respective table below).

  • Wavelength channels (see respective table below).

Default Severity

Critical

Service Affecting

Yes (true).

Alarm Clearing

See Clearing a LaserFail alarm.

Related Fault Hierarchy

See Common fault hierarchy - OTN and CBR ports.

Table 2: Optical Channel Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

och:<chassis>/<slot>/<2>/<1>/<subport.och>

UFM6

Fault LED, 200G line port

On

Table 3: OTN OTU Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

otu4:<chassis>/<slot>/<1>/<1>

UFM4

Fault LED, 100G line port

On

otu4:<chassis>/<slot>/<subslot>/<port>

1x CFP BIC

Fault LED, 100G port

otu2:<chassis>/<slot>/<subslot>/<port>

12x SFP+ BIC

Fault LED, 10G port

otu2e:<chassis>/<slot>/<subslot>/<port>

Note: Supported on UFM3 only.

Table 4: Ethernet Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

100ge:<chassis>/<slot>/<subslot>/<port>/<subport>

1x CFP BIC

Fault LED, 100G port

On

100ge:<chassis>/<slot>/<1>/<port>

UFM6

Fault LED, 10/40/100G port

40ge:<chassis>/<slot>/<1>/<port>

UFM6

Fault LED, 10/40/100G port

10ge:<chassis>/<slot>/<1>/<port>/<subport>

UFM6

Fault LED, 10/40/100G port

10ge:<chassis>/<slot>/<subslot>/<port>/<subport>

12x SFP+ BIC

Fault LED, 10G port

Table 5: SONET/SDH Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

oc192:<chassis>/<slot>/<subslot>/<port>

12x SFP+ BIC

Fault LED, 10G port

On

wanoc192:<chassis>/<slot>/<subslot>/<port>

stm64:<chassis>/<slot>/<subslot>/<port>

wanstm64:<chassis>/<slot>/<subslot>/<port>

Table 6: Wavelength Channels

Entity Name

 

Fault Indicator

Module

Indicator

Status

channel:<chassis>/<slot>/<subslot>/<port.channel>

1x CFP BIC1

Fault LED, 100G port

On

1 Reporting of this alarm for a wavelength channel is supported only on multiwavelength CFP transceivers.

Clearing a LaserFail Alarm

Note

Follow all applicable safety requirements as described in the BTI7800 Series Hardware Overview and Installation Guide.

Note

Refer to the BTI7800 Series Software Configuration Guide before rebooting a traffic module or to the BTI7800 Series Hardware Overview and Installation Guide replacing a traffic module or transceiver.

  1. Perform a cold reboot:
    • If the alarm is raised against a line-port interface provisioned on an integrated MSA transceiver, reboot the UFM that contains the integrated MSA.

    • If the alarm is raised against a client-port interface provisioned on a pluggable transceiver installed in a BIC, reboot the UFM in which the BIC is installed.

  2. Check for alarms on the interface.
    • If the alarm clears, you have completed this procedure.

    • If the alarm does not clear, go to the next step.

  3. Replace the either the UFM or the pluggable transceiver:
    • If the alarm is raised against a line-port interface provisioned on an integrated MSA transceiver, replace the UFM.

    • If the alarm is raised against a client-port interface provisioned on a pluggable transceiver, replace the pluggable transceiver.

  4. Check for alarms on the interface.
    • If the alarm clears, you have completed this procedure.

    • If the alarm does not clear, contact your next level of support.