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Dialogic DSI SPCI Network Interface Boards User Manual

Page 89

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Dialogic

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DSI SPCI Network Interface Boards Programmer's Manual Issue 5

89

6.4.8

MTP3 Q.752 Event Indication

Synopsis:
Message issued by MTP3 to notify management of various protocol events in
accordance with ITU-T Q.752.

Message Format:

MESSAGE HEADER

Field Name

Meaning

type MGT_MSG_MTP_EVENT (0x0301)

id

0

src

MTP3 module id

dst

Management module id

rsp_req

0

hclass

0

status Event

Code (see below)

err_info

Timestamp

len

Either 0, 1, 2 or 4

PARAMETER AREA

Offset Size

Name

0

len

Event specific parameters

Description:
This primitive is used by MTP2 to advise management of the occurrence of

protocol related events in accordance with Q.752. These events either relate

to the reason for a signaling link (that was in service) going out of service
(events prefixed S7F_) or the occurrence of congestion related events
(prefixed S7G_).

Parameter Description:

Event Code
The Event Code coding and the meaning of the event specific parameters are

given in the following table:

link is indicated as (linkset_id * 256) + link_ref, (size = 2).

linkset is indicated as linkset_id, (size = 1).

point code is a 4 byte value, (size = 4).