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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, 100G port

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

    UFM6

    Fault LED, 10G 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.

    Modified: 2017-07-06