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TIM

 

Table 1: Alarm Details

Parameter

Description

Code

tim

Description

Trace Identifier Mismatch: The received trace identifier is different from the expected trace identifier.

Entities Affected

  • OTN OTU interfaces (see respective table below).

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

Possible Causes

  • The optical fiber link is from the wrong source (misconnected).

  • Either the expected trace identifier configured on the local interface is incorrect, or the trace identifier configured on the remote interface is incorrect.

Default Severity

Critical

Service Affecting

No (false).

Alarm Clearing

See Clearing a TIM alarm.

Related Fault Hierarchy

See:

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.

Table 3: 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>

Clearing a TIM Alarm

Note

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

  1. Retrieve detailed interface data to view the values of the following attribute pairs:
    • OTU interface: Trace Message Expected / Trace Message Received

    • SONET/SDH interface: Expected Section Trace Message / Received Section Trace Message

    show interface name:identifier detail
  2. Based on the trace-message data, determine whether any of the following problems exist, and then resolve them:
    • The optical fiber link is from the wrong source (misconnected).

    • The expected trace identifier configured on the local interface is incorrect.

    • The trace identifier configured on the remote interface is incorrect.

  3. 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.