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OTU-AIS

 

Table 1: Condition Details

Parameter

Description

Code

otu-ais

Description/Cause

OTU Alarm Indication Signal: The local interface has received an OTU-AIS signal from the NE at the far end of the fiber, indicating that no OTN OTU signal is being transmitted upstream of (and toward) the local NE.

Note: This signal is generated by non-BTI7800 NEs only.

Entities Affected

  • OTN OTU interfaces (see respective table below).

Default Severity

Not alarmed.

Service Affecting

Yes (true).

Condition Clearing

The condition will clear when the fault that resulted in the transmission of the OTU-AIS signal is resolved.

Related Fault Hierarchy

Table 2: OTN OTU Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

otu4:<chassis>/<slot>/<2>/<1>/<subport.och.tributary>

UFM6

Fault LED, 200G line port

On

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.