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9 mgt_msg_ss7_state, 10 primitives issued from mtp3-b, Mgt_msg_ss7_state – Dialogic DSI SS7MD User Manual

Page 100: Link state indication

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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