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Dialogic
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DSI SS7MD Programmer’s Manual Issue 3
6.8.4
DVR_MSG_R_L1_STATS – Link Statistics Request
Synopsis
Retrieve link statistics.
Format
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:
•
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.
MESSAGE HEADER
Field Name
Meaning
type
DVR_MSG_R_L1_STATS
(0x6136)
id
l1_llid
src
Sending module ID
dst
module ID of onboard HDLC/SS7 driver
rsp_req
Used to request a confirmation, sending layer’s bit must be set.
hclass
0
status
0 – Read statistics
1 – Read statistics and reset
err_info
0
len
48
PARAMETER AREA
Offset
Size
Name
0
4
duration
4
4
abort_cnt
8
4
CRC_errs
12
4
Reserved. Must be set to 0.
16
4
length_errs
20
4
rx_overrun
24
4
receiver_busy_cnt
28
4
rx_frame_cnt
32
4
rx_pre_filter_cnt
36
4
tx_frame_cnt
40
4
Reserved. Must be set to 0.
44
4
rx_busy_status
