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LPBK

 

Table 1: Condition Details

Parameter

Description

Code

lpbk

Description/Cause

Loopback Operated: A loopback test is active on the local port.

Entities Affected

  • OTN OTU interfaces (see respective table below).

  • Ethernet interfaces (see respective table below).

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

Default Severity

Not alarmed. (Default severity should not be changed.)

Service Affecting

No (false).

Condition Clearing

This condition clears when the loopback is released. For information, see the BTI7800 Series Software Configuration Guide.

Related Fault Hierarchy

See Common fault hierarchy - OTN and CBR ports.

Table 2: OTN OTU Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

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

UFM6

otu4:<chassis>/<slot>/<1>/<1>

UFM4

otu4:<chassis>/<slot>/<subslot>/<port>

1x CFP BIC

otu2:<chassis>/<slot>/<subslot>/<port>

12x SFP+ BIC

otu2e:<chassis>/<slot>/<subslot>/<port>

Note: Supported on UFM3 only.

Table 3: Ethernet Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

100ge:<chassis>/<slot>/<subslot>/<port>/<subport>

1x CFP BIC

100ge:<chassis>/<slot>/<1>/<port>

UFM6

40ge:<chassis>/<slot>/<1>/<port>

UFM6

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

UFM6

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

12x SFP+ BIC

Table 4: SONET/SDH Interfaces

Entity Name

 

Fault Indicator

Module

Indicator

Status

oc192:<chassis>/<slot>/<subslot>/<port>

12x SFP+ BIC

wanoc192:<chassis>/<slot>/<subslot>/<port>

stm64:<chassis>/<slot>/<subslot>/<port>

wanstm64:<chassis>/<slot>/<subslot>/<port>