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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