100
6 Message Reference
6.6.9
MGT_MSG_SS7_STATE – Link State Indication
Synopsis
Indication generated by Q.SAAL module to advise management of changes to the per-link state
Message Format
Description:
This primitive is used by Q.SAAL to advise management of changes of state within the Link State Control
function. These indications are only given if the STATE bit of the management event mask is set.
This message is intended for diagnostic and maintenance purposes and does not form part of the protocol
specified primitives.
The LINK STATE is coded as shown in the following table:
6.6.10
Primitives issued from MTP3-b
The following primitives are supported by the Q.SAAL module. For message definitions refer to Dialogic®
SS7 Protocols MTP2 Programmer's Manual.
MESSAGE HEADER
Field Name
Meaning
type
MGT_MSG_SS7_STATE (0x0201)
id
Link ID
src
QSL_TASK_ID
dst
Management module ID
rsp_req
0
hclass
0
status
Link State (see below)
err_info
Timestamp
len
0
Value
Mnemonic
Description
1
IN_SERVICE
Entered IN SERVICE state
2
OUT_SERVICE
Entered OUT OF SERVICE state
3
INIT_ALIGN
Entered INITIAL ALIGNMENT state
MTP2 Primitive
Description
NNI Primitive Equivalent
API_MSG_TX_REQ Transmission
Request
AAL-MESSAGE_FOR_TRANSMISSION
SS7_MSG_START
Start Link Request
AAL-START
SS7_MSG_STOP
Stop Link Request
AAL-STOP
SS7_MSG_EMGCY
Set Emergency Request
AAL-EMERGENCY
SS7_MSG_EMGCY_CLRD Clear
Emergency Request
AAL-EMERGENCY_CEASES
SS7_MSG_RTV_BSNT
BSNT Retrieval Request - extended
version
AAL-RETRIEVE_BSNT
SS7_MSG_RTVL_REQ Retrieval
Request
AAL-RETRIEVAL_REQUEST_AND_FSNC
SS7_MSG_CONTINUE Continue
Request
AAL-CONTINUE (ignored)
SS7_MSG_FLUSH
Flush Request
AAL-FLUSH_BUFFERS
SS7_MSG_LOC_PR_OUT LPO
Request
N/A
SS7_MSG_LOC_PR_OK
LPO Recovered Request
N/A
SS7_MSG_L3_FAIL
Level 3 Failure Request
N/A
