6 Message Reference
6.8.2LIU_MSG_R_STATS – LIU Read Statistics Request
Synopsis
Message used to read back performance statistics associated with a Line Interface Unit (LIU).
Format
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| MESSAGE HEADER |
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| Field Name | Meaning | |
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type |
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| LIU_MSG_R_STATS (0x5e36) |
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id |
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| liu_id (in the range 0 to one less than the number of LIUs) |
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src |
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| Sending module ID |
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dst |
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| MVD_module_ID |
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rsp_req |
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| Used to request a confirmation. |
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hclass |
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| 0 |
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status |
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| 0 to read statistics |
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| 1 to read statistics and reset counters | |
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err_info |
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| 0 |
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len |
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| 42 |
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| PARAMETER AREA |
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Offset |
| Size | Name |
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0 |
| 2 | version |
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2 |
| 2 | Reserved. Must be set to 0. |
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4 |
| 4 | duration |
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8 |
| 4 | bit_errors |
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12 |
| 4 | code_violations |
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16 |
| 4 | frame_slips |
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20 |
| 4 | oos_transitions |
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24 |
| 4 | errored_seconds |
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28 |
| 4 | severely_errored_seconds |
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32 |
| 2 | prbs_status |
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34 |
| 4 | Reserved. Must be set to 0. |
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38 |
| 4 | Reserved. Must be set to 0. |
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Description
This message is used to collect performance statistics for a given Line Interface Unit (LIU). A module requesting LIU statistic information is required to complete the version parameter of the message, request a response, and set all additional parameter values to zero.
The confirmation message shall feature a
Typically, a managing application would be set up to periodically (for example, hourly or daily) read and reset the statistics and store the resulting information so that it can be accessed later for generation of performance reports for the line interface.
Parameters
The LIU_MSG_R_STATE message includes the following parameters:
•version
Version of the parameter area.
•duration
The duration (in seconds) since the statistics were last reset.
•bit_errors
A count of the actual number of bit errors detected by the framer device for the LIU. The precise meaning of this parameter varies depending on the operating mode of the framer:
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