Dialogic DSI SPCI Network Interface Boards manual 6 MTP2 Level 2 State Indication

Models: DSI SPCI Network Interface Boards

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6 Message Reference

6.4.6MTP2 Level 2 State Indication

Synopsis:

Indication issued by the board every time the level 2 link state control state machine changes state.

Message Format:

 

MESSAGE HEADER

Field Name

Meaning

 

 

type

MGT_MSG_SS7_STATE (0x0201)

 

 

id

llid (Level 2 logical link id - 0 ... 3)

 

 

src

SS7_TASK_ID

 

 

dst

0xdf

 

 

rsp_req

0

 

 

hclass

0

 

 

status

Link State (see below)

 

 

err_info

Reserved for future use

 

 

len

0

 

 

Description:

This message is issued by the MTP2 module every time a change of state takes place at level 2. It is intended only for diagnostic use by system management. Normally the MTP Pause and MTP Resume Indications are used by the user parts to determine destination accessibility.

The level 2 link state control state machine is defined in Q.703.

Parameter Description:

Link State

The status field in the message header is used to indicate the state that has just been entered. It is coded as follows:

Value

Mnemonic

State

1

S7S_IN_SERVICE

In Service

 

 

 

2

S7S_OUT_SERVICE

Out of Service

 

 

 

3

S7S_INIT_ALIGN

Initial Alignment

 

 

 

4

S7S_ALIGN_NOT_RDY

Aligned, Not Ready

 

 

 

5

S7S_ALIGN_READY

Aligned, Ready

 

 

 

6

S7S_PROC_OUTAGE

Processor Outage

 

 

 

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Dialogic DSI SPCI Network Interface Boards manual 6 MTP2 Level 2 State Indication, Parameter Description Link State

DSI SPCI Network Interface Boards specifications

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