Subsystem status event structure

Notifies the application of a change in the state of a subsystem at a concerned signaling point (eventType of TCAP_EVENT_SSN_STATE):

typedef struct Tcap_Ssn_State_Event
{
  U8   aSsn;    /* affected subsystem number                          */
  U8   status;  /* new subsystem status                               */
  U8   smi;     /* subsystem multiplicity indicator                   */
  U8   spare;   /* spare for alignment                                */
  U32  aPc;     /* affected point code - future use                   */
  U32  opc;     /* originating point code                             */
} TcapSsnStateEvent;

 

The TcapSsnStateEvent structure contains the following fields:

Field

Description

aSsn

Contains the affected subsystem number. Valid range is 0 - 255.

status

Represents the new status of the affected subsystem:

0x03 = SS_OOS   Subsystem out of service

0x04 = SS_IS   Subsystem in service

smi

Represents the subsystem multiplicity indicator, or the new status of the subsystem with respect to replication:

0x00 = SMI_UNKNOWN   Multiplicity unknown

0x01 = SMI_SOLO   Subsystem not replicated

0x02 = SMI_DUP   Subsystem is replicated

aPc

Not currently available. Reserved for future use.

opc

Originating point code - used for multiple OPC support.