-NSSAI with this HTTP GET message. Step 6: For a successful transaction, the UDM responds with 200 OK and sends the DNN configurations 5G QoS profile, 5QI, ARP, session AMBR values, and SO on. Step 7: SMF sends an HTTP post subscription notification request to the UDM for this SUPI. Step 8: After a successful transaction, the UDM responds with a 201 created message. Step 9: The SMF sends an Nsmf_PDUSession_CreatesM context response with the cause, N1 SM container by processing the PDU session establishment request. Here are some snapshots: IMS 5G PDU session establishment SMF.smf-rest-ep.DC.Local.0 RECEIVING message From Url POST 10.193.51.17:8090//nsmf- pdusession/v1/sm-contexts Subscriber Id: imsi-123123xxxxxx0 "supi": "imsi-123123xxxxxxx0", "pei": "imeisv-1234567890123", si":"msisdn-xxxxxxxxx" "pduSessionId":2, "dnn": "ims", "sNssai": "sst":1 "servingNfld":"bbe596c6-0a81-4e94-85bc-f3b1b4a9a52f" "guami": { "plmnid": { "mcc": "123", "mnc": "123" "amfld":"0100" "servingNetwork" "mcc":"123", Figure 7.13 - Packet capture: AMF TO SMF PDU session create SM context request The UDM to SMF subscription fetch message is shown next. It depicts some of the important fields, such as the DNN configurations, allocation, and retention priority values, and SO on: Packet Core Procedures HyperText Transfer Protocol 2 Stream: HEADERS, Stream ID: 3, Length 124, 200 OK Stream: DATA, Stream ID: 3, Length 412 JavaScript Object Notation: application/json Array Object Member Key: dnnConfigurations Object Member Key: ims.lab Object Member Key: 5gQosProfile Object Member Key: 5qi Number value: 5 Key: 5qi Member Key: arp Object Member Key: preemptCap String value: MAY_PREEMPT Key: preemptCap Member Key: preemptVuln String value: NOT_PREEMPTABLE Key: preemptVuln Member Key: priorityLevel Number value: 12 Key: priorityLevel Key: arp Key: 5gQosProfile Member Key: iwkEpsInd True value Key: iwkEpsInd Member Key: pduSessionTypes Object Member Key: allowedSessionTypes > Array Key: allowedSessionTypes Member Key: defaultSessionType String value: I