Dialogic® DSI SS7MD Programmer’s Manual Issue 3
6.8.4DVR_MSG_R_L1_STATS – Link Statistics Request
Synopsis
Retrieve link statistics.
Format
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| MESSAGE HEADER |
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Field Name | Meaning | |
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type |
| DVR_MSG_R_L1_STATS (0x6136) |
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id |
| l1_llid |
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src |
| Sending module ID |
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dst |
| module ID of onboard HDLC/SS7 driver |
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rsp_req |
| Used to request a confirmation, sending layer’s bit must be set. |
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hclass |
| 0 |
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status |
| 0 – Read statistics |
| 1 – Read statistics and reset | |
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err_info |
| 0 |
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len |
| 48 |
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| PARAMETER AREA |
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Offset | Size | Name |
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0 | 4 | duration |
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4 | 4 | abort_cnt |
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8 | 4 | CRC_errs |
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12 | 4 | Reserved. Must be set to 0. |
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16 | 4 | length_errs |
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20 | 4 | rx_overrun |
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24 | 4 | receiver_busy_cnt |
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28 | 4 | rx_frame_cnt |
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32 | 4 | rx_pre_filter_cnt |
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36 | 4 | tx_frame_cnt |
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40 | 4 | Reserved. Must be set to 0. |
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44 | 4 | rx_busy_status |
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Description
This message provides the user with a number of statistics on a per link basis. If the user sends the message with a non zero status field, the statistics are reset to 0 after being read.
Parameters
The DVR_MSG_R_L1_STATS message includes the following parameters:
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duration
Duration in tenths of a second since the statistic counters were last reset.
about_cnt
The number of aborts received on the link.
CRC_errs
Number of CRC errors received on the link.
length_errs
The number of received frames that were designated as either too long or too short for a configured protocol.
rx_overrun
The number of times that the receiver was forced to discard incoming frames as a result of there being no internal buffers available to receive the incoming data. This is a count of the number of events rather than a count of the number of frames discarded.
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