Event Trace Logs
The following are the synopsis of the Event Trace logs to trigger session management policies towards the SMF:
-
Event Trace logs provide an execution sequence for a session. It represents the following:
-
Message Type
-
Event Type—Incoming or Outgoing or Internal submitted event type.
-
Procedure Type and Procedure Instance—Where the message is associated with.
-
Txn ID—Where the message is associated with.
-
Timestamp—For the same message associated with
-
-
Event Trace logs also describe other events as the following:
-
Local2DB—When the session details are derived into a primitive structure.
-
DB2Local—When the session details aren’t derived from DB to Session DS.
-
Procedure Events—When it conveys the END or SUSPEND or ABORT or CLEANUP events also.
-
Sample Dump for Event Trace Logs
The following is a sample dump for Event Trace logs:
2020/09/10 13:16:16.177 smf-service [DEBUG] [Genericutil.go:5739] [smf-service0.smf-app.event-trace] EVENT TRACE SessionKeys[[imsi-123456789012345:5 (pk)]]
CurIndex:[31], CurProcInst:[1], CreateTimeStamp:[2020-09-10 13:16:15.503 +0000 UTC], BaseTimeStamp:[2020-09-10 13:16:15.503 +0000 UTC]
|INDEX|EVENT NAME |EVENT TYPE |PROC NAME |PROC INST |TXN ID |TIMESTAMP |
|1 |N11SmContextCreateReq |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.503 +0000 UTC |
|2 |N10RegistrationRequest |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.525 +0000 UTC |
|3 |N10RegistrationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.605 +0000 UTC |
|4 |N10SubscriptionFetchReq |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.606 +0000 UTC |
|5 |N10SubscriptionFetchSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.644 +0000 UTC |
|6 |N10SubscribeForNotificationReq |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.65 +0000 UTC |
|7 |N10SubscribeForNotificationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.67 +0000 UTC |
|8 |NIntSelfTxnPduSetup |INTERNAL_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.67 +0000 UTC |
|9 |Message Type None |LOCAL_2_DB |Unknown |0 |0 |2020-09-10 13:16:15.671 +0000 UTC |
|10 |N11SmContextCreateSuccess |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.711 +0000 UTC |
|11 |NIntSelfTxnPduSetup |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.712 +0000 UTC |
|12 |N7SmPolicyCreateReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.712 +0000 UTC |
|13 |N7SmPolicyCreateSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.797 +0000 UTC |
|14 |NmgrRersourceMgmtRequest |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.805 +0000 UTC |
|15 |NmgrRersourceMgmtResponse |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.814 +0000 UTC |
|16 |N7SmPolicyUpdateReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.823 +0000 UTC |
|17 |N7SmPolicyUpdateSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.853 +0000 UTC |
|18 |N40ChargingDataReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.854 +0000 UTC |
|19 |N40ChargingDataSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.912 +0000 UTC |
|20 |N4SessionEstablishmentReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.921 +0000 UTC |
|21 |N4SessionEstablishmentSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.986 +0000 UTC |
|22 |N11EbiAssignmentReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.99 +0000 UTC |
|23 |N11EbiAssignmentRsp |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.017 +0000 UTC |
|24 |N11N1N2MessageTransferReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.021 +0000 UTC |
|25 |N11N1N2MessageTransferSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.096 +0000 UTC |
|26 |Message Type None |LOCAL_2_DB |Unknown |0 |0 |2020-09-10 13:16:16.096 +0000 UTC |
|27 |N11SmContextUpdateReq |INCOMING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.111 +0000 UTC |
|28 |N4SessionModificationReq |OUTGOING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.114 +0000 UTC |
|29 |N4SessionModificationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.155 +0000 UTC |
|30 |N4GtpuRouterAdvertisementReq |OUTGOING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.156 +0000 UTC |
|31 |N4SessionModificationSuccess |ENDPROC_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.175 +0000 UTC |
Logging a Message for Event Trace Logs
The following is a sample example of a LogTag for Event Trace logs:
2020/09/10 13:16:16.177 smf-service [DEBUG] [Genericutil.go:5739] [smf-service0.smf-app.event-trace] EVENT TRACE SessionKeys[[imsi-123456789012345:5 (pk)]]
CurIndex:[31], CurProcInst:[1], CreateTimeStamp:[2020-09-10 13:16:15.503 +0000 UTC], BaseTimeStamp:[2020-09-10 13:16:15.503 +0000 UTC]
|INDEX|EVENT NAME |EVENT TYPE |PROC NAME |PROC INST |TXN ID |TIMESTAMP |
|1 |N11SmContextCreateReq |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.503 +0000 UTC |
|2 |N10RegistrationRequest |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.525 +0000 UTC |
|3 |N10RegistrationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.605 +0000 UTC |
|4 |N10SubscriptionFetchReq |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.606 +0000 UTC |
|5 |N10SubscriptionFetchSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.644 +0000 UTC |
|6 |N10SubscribeForNotificationReq |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.65 +0000 UTC |
|7 |N10SubscribeForNotificationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.67 +0000 UTC |
|8 |NIntSelfTxnPduSetup |INTERNAL_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.67 +0000 UTC |
|9 |Message Type None |LOCAL_2_DB |Unknown |0 |0 |2020-09-10 13:16:15.671 +0000 UTC |
|10 |N11SmContextCreateSuccess |OUTGOING_EVENT |PDU Session Establishment |1 |1776 |2020-09-10 13:16:15.711 +0000 UTC |
|11 |NIntSelfTxnPduSetup |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.712 +0000 UTC |
|12 |N7SmPolicyCreateReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.712 +0000 UTC |
|13 |N7SmPolicyCreateSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.797 +0000 UTC |
|14 |NmgrRersourceMgmtRequest |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.805 +0000 UTC |
|15 |NmgrRersourceMgmtResponse |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.814 +0000 UTC |
|16 |N7SmPolicyUpdateReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.823 +0000 UTC |
|17 |N7SmPolicyUpdateSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.853 +0000 UTC |
|18 |N40ChargingDataReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.854 +0000 UTC |
|19 |N40ChargingDataSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.912 +0000 UTC |
|20 |N4SessionEstablishmentReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.921 +0000 UTC |
|21 |N4SessionEstablishmentSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.986 +0000 UTC |
|22 |N11EbiAssignmentReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:15.99 +0000 UTC |
|23 |N11EbiAssignmentRsp |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.017 +0000 UTC |
|24 |N11N1N2MessageTransferReq |OUTGOING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.021 +0000 UTC |
|25 |N11N1N2MessageTransferSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1777 |2020-09-10 13:16:16.096 +0000 UTC |
|26 |Message Type None |LOCAL_2_DB |Unknown |0 |0 |2020-09-10 13:16:16.096 +0000 UTC |
|27 |N11SmContextUpdateReq |INCOMING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.111 +0000 UTC |
|28 |N4SessionModificationReq |OUTGOING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.114 +0000 UTC |
|29 |N4SessionModificationSuccess |INCOMING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.155 +0000 UTC |
|30 |N4GtpuRouterAdvertisementReq |OUTGOING_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.156 +0000 UTC |
|31 |N4SessionModificationSuccess |ENDPROC_EVENT |PDU Session Establishment |1 |1778 |2020-09-10 13:16:16.175 +0000 UTC |