Specifications

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DSI SPCI Network Interface Boards Programmer's Manual Issue 7
63
Format
MESSAGE HEADER
Field Name
Meaning
type
MGT_MSG_SS7_EVENT (0x0202)
id
l2_llid
src
MTP2 module id
dst
Management module id
rsp_req
0
hclass
0
status
Event Code (see below)
err_info
Timestamp
next
0
len
0
Description
This primitive is used by MTP2 to advise management of the occurrence of protocol
related events in accordance with Q.752. These events relate to the following:
the reason for a signaling link (previously in service) going out of service (events
prefixed S7F_).
the occurrence of congestion related events (prefixed S7G_).
a timer expired (prefixed S7T_).
a proving failure (prefixed S7P_).
Parameters
Event Code
The Event Code is coded as shown in the following table:
Value
Mnemonic
Description
0
S7F_STOP
Stop request received
1
S7F_FIBR_BSNR
Abnormal FIBR/BSNR
2
S7F_EDA
Excessive delay of acknowledgement
3
S7F_SUERM
Excessive error rate (SUERM)
4
S7F_ECONG
Excessive congestion
5
S7F_SIO_RXD
Unexpected SIO received
6
S7F_SIN_RXD
Unexpected SIN received
7
S7F_SIE_RXD
Unexpected SIE received
8
S7F_SIOS_RXD
SIOS received
16
S7G_CONG
Onset of signaling link congestion
17
S7G_CONG_CLR
Abatement of signaling link congestion
18
S7G_CONG_DIS
Congestion event caused MSU discard
32
S7T_T1_EXP
Timer T1 expiry