SCCP:Error Performance Report

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The performance report error (event) notification message is received by the host application when a SCCP is reporting a performance error.

General explanation of the error event notification fields in the performance report:

  • The SCCP handle field specifies the handle of the SCCP instance.




  • The Cause field specifies the cause of the error performance report.


SCCP event and cause LSAP alarm under CATEGORY_PROTOCOL
Cause Report parameters used Description
Unknown None Unknown
No Translation - bad address (RTF_NTBADADDR)
  • un32NetworkId
  • ProtocolVariant
  • Called Address
  • Calling Address
Routing failure - No translation for address of such nature
No translation - specific address (RTF_NTSPECADDR)
  • un32NetworkId
  • Protocol Variant
  • Called Address
  • Calling Address
Routing failure - No translation for this specific address
Network failure (RTF_NETWORK_FAIL)
  • un32NetworkId
  • ProtocolVariant
  • Calling Address
Routing failure - Network failure (point code not available)
Network congestion (RTF_NETWORK_CONGESTION)
  • un32NetworkId
  • ProtocolVariant
  • DPC
  • Calling Address
Routing failure - Network congestion
Subsystem failure (RTF_SUBSYSTEM_FAILURE)
  • un32NetworkId
  • ProtocolVariant
Routing failure - Subsystem failure (unavailable)
System congestion (RTF_SUBSYSTEM_CONGESTION)
  • un32NetworkId
  • ProtocolVariant
  • Calling Address
Routing failure - Subsystem congestion
Routing failure - unequipped user (RTF_UNEQUIPPED)
  • un32NetworkId
  • ProtocolVariant
Routing failure - Unequipped user (subsystem).
Reassembly outside of sequence (REASSEMBLY_OUTSEQ)
  • un32NetworkId
  • ProtocolVariant
  • Calling Address
  • un32CongestionLvl
Reassembly error - Segment received out of sequence
Hop violation (HOP_VIOLATION)
  • un32NetworkId
  • ProtocolVariant
  • Called Address
  • Calling Address
Hop counter violation (XUDT(S) / LUDT(S))
Segment failure - too large (SEGFAIL_TOO_LARGE)
  • un32NetworkId
  • ProtocolVariant
Message too large for segmentation
Subsystem congested received (SSC_RECV)
  • un32NetworkId
  • ProtocolVariant
  • DPC
  • un32CongestionLvl
SCCP / Subsystem congested message received.
Subsystem prohibited received (SSP_RECV)
  • un32NetworkId
  • ProtocolVariant
  • DPC
  • un32SSN
Subsystem prohibited message received


Description of parameters

General explanation of the Report-specific information parameters:

  • The Network identifier parameter specifies the ID of the network
  • The Called address parameter specifies the called party address. See the Entity explanation in GTT Address Map Configuration
  • The Calling address parameter specifies the calling party address. See the Entity explanation in GTT Address Map Configuration
  • The Destination point code parameter (DPC) specifies the point code of the node where the route is terminating
  • The Protocol variant parameter specifies the SCCP protocol variant. See the SCCP protocol variant table in Toolpack:Create a SCCP network
  • The Subsystem number parameter specifies a subsystem number. See the SCCP SSN value to identify SCCP user table in Toolpack:Create a SCCP route.
  • The Segmentation reference parameter specifies the SCCP segmentation local reference number
  • The Congestion level parameter specifies the remote SCCP congestion level (reception of SSC). Value is in range 0 to 7.
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