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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.