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    LoSpecRx

    Table 1: Alarm Details

    Parameter

    Description

    Code

    loSpecRx

    Description

    Loss out of Specification, Receive: The optical loss received is outside the specification range.

    Entities Affected

    DOL ports (see respective table below).

    Possible Cause

    Either the upstream fiber link or the optical connection is degraded.

    Default Severity

    Critical

    Service Affecting

    Yes (true).

    Alarm Clearing

    See Clearing a LoSpecRx alarm.

    Related Fault Hierarchy

    See DOL port fault hierarchy.

    Table 2: DOL Ports

    Entity Name

     

    Fault Indicator

    Module

    Indicator

    Status

    port:<chassis>/<slot>/0/L1

    ROADM2 or ILA

    Fault LED, L1 port

    On

    port:<chassis>/<slot>/0/C<n>

    where the range of n depends on the module.

    Fault LED, C<n> port

    Clearing a LoSpecRx Alarm

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

    1. Retrieve statistics for the DOL port to view the value of the Optical power loss in recv. direction counter, and then refer to DOL Rx-loss alarm thresholds:
      show statistics current port:identifier
    2. Ensure that the upstream fiber connections are intact, thoroughly clean, and correctly connected.
    3. Check for alarms on the DOL port.
      • If the alarm has cleared, you have completed this procedure.
      • If the alarm does not clear, contact your next level of support.

    Modified: 2017-04-25