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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

    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>

    Modified: 2017-07-06