PDU Session Modification Command Reject
If the UE rejects the PDU-Session-Modification-Command, it sets the 5GSM cause IE of the PDU Session Modification Reject message to indicate the reason for rejecting the PDU session modification.
The SMF supports the following 5GSM causes.
5GSM Cause |
SMF Behavior |
---|---|
Cause #26 – insufficient resources |
The SMF retains the statistics based on the cause. |
Cause #43 – Invalid PDU session identity |
The SMF retains the statistics based on the cause and releases the existing PDU session. |
Cause #44 – Semantic error in packet filter(s) |
The SMF retains the statistics based on the cause. |
Cause #45 – Syntactical error in packet filter(s) |
The SMF retains the statistics based on the cause. |
Cause #83 – Semantic error in the QoS operation |
The SMF retains the statistics based on the cause. |
Cause #85 – Syntactical error in the QoS operation |
The SMF retains the statistics based on the cause. |