What's New in This Guide

This section lists the documentation updates for release 24.2.x.

Release 24.2.5- F98415-07, August 2025

• Updated the metric name in the KPI expressions from container_memory_usage_seconds_total to container_memory_usage_bytes in the document for the following services in the Resource Usage KPIs section:
  • nfregistration
  • nfsubscription
  • nfdiscovery
  • nrfauditor
  • nfaccesstoken
  • nrfconfiguration
  • ingress-gateway
  • egress-gateway
• Updated the following metric names in the document in the NRF Message Feed section:
  • Updated the metric name from oc_ingressgateway_msgcopy_response_total to oc_ingressgateway_msgcopy_responses_total.
  • Updated the metric name from oc_egressgateway_msgcopy_response_total to oc_egressgateway_msgcopy_responses_total.
• Updated the metric name in the document from oc_egressgateway_msgcopy_response_total to oc_egressgateway_msgcopy_responses_total in the Egress Gateway Metrics section.

Release 24.2.5- F98415-06, July 2025

• Updated the Overload Control Based on Percentage Discards section with the following:
  • Enhanced the existing feature description.
  • Added the service_resource_stress and service_resource_overload_level metrics.
  • Added the service and isLeaderPod dimensions for the load_level metric in the Overload Control section.
  • Added the descriptions for the service and isLeaderPod dimensions in the NRF Metrics section.
  • Updated the description of the type dimension in the NRF Metrics section.
  • Added the following metrics in the Overload Control section:
    • service_resource_stress
    • service_resource_overload_level
  • Added the LoadLevel and DiscardAction dimensions in the NRF Metrics section.
  • Added the oc_ingressgateway_route_overloadcontrol_discard_total metric in the Ingress Gateway Metrics section.
• Added a note for handling the discovery query for AMF with guami in the EmptyList in Discovery Response section.
• Updated the NRF Supported Services section with the maximum number of NFProfiles and NFSubscriptions.
• Added a note in the DataSetId Enhancements section to indicate that DataSetId parameter is ignored for certain scenarios for the NF Profiles.
• Added a note in the DNS NAPTR Update section to mention that the feature works in non-ASM deployment.
• Updated the NRF Last Known Response section to mention that in a NfProfileRetrieval request, NRF sends a response with the requested NfProfile by changing the status of NF from PROBABLE_SUSPENDED to UNDISCOVERABLE.
• Removed the following error codes from the NFUpdate with Full Replacement (PUT) section:
  • ONRF-REG-FULLUPD-E0002
  • ONRF-REG-FULLUPD-E0007
  • ONRF-REG-FULLUPD-E0008
  • ONRF-REG-FULLUPD-E0009
  • ONRF-REG-FULLUPD-E0104
  • ONRF-REG-FULLUPD-E0112

Release 24.2.4- F98415-05, April 2025

• Added or modified the following sections for the Egress Gateway Pod Throttling feature:
  • Added the feature overview in the Egress Gateway Pod Throttling section.
  • Added the following metrics in the Egress Gateway Metrics section:
    • oc_egressgateway_podlevel_throttling_allowed_total
    • oc_egressgateway_podlevel_throttling_discarded_total
  • Added route_id dimension in the NRF Metrics section.
  • Added the following alerts in the Egress Gateway Pod Throttling section:
    • OcnrfEgressPerPodDiscardRateAboveMajorThreshold
    • OcnrfEgressPerPodDiscardRateAboveCriticalThreshold
  • Added the Egress Gateway Pod Throttling KPI in the Egress Gateway Pod Throttling section.
• Added the following metrics in the NRF NF Metrics section:
  • ocnrf_nfDiscover_tx_response_size_bytes
  • ocnrf_nf_profile_size_bytes
• Added the following alerts in the System Level Alerts section:
  • OcnrfTotalEgressTrafficRateAboveCriticalThreshold
  • OcnrfTotalForwardingTrafficRateAboveCriticalThreshold
  • OcnrfTotalSLFRateAboveCriticalThreshold
  • OcnrfTotalDiscoveryRateAboveCriticalThreshold
• Added the following alerts in the Service Level Alerts section:
  • OcnrfAccessTokenRequestsAboveThreshold
  • OcnrfNfUpdateRequestsAboveThreshold
  • OcnrfNfHeartBeatRequestsAboveThreshold
  • OcnrfRegisteredNfCountAboveThreshold
  • OcnrfNfProfileSizeAboveThreshold
  • OcnrfDiscoveryResponseSizeAboveThreshold
  • OcnrfTotalSubscriptionsAboveThreshold
  • OcnrfDiscoveryRequestsForUDRAboveThreshold
  • OcnrfDiscoveryRequestsForUDMAboveThreshold
  • OcnrfDiscoveryRequestsForAMFAboveThreshold
  • OcnrfDiscoveryRequestsForSMFAboveThreshold
• Updated the critical configured threshold value for OcnrfTotalIngressTrafficRateAboveCriticalThreshold.
• Updated the NRF Metrics sections for the following:
  • Added EgressGatewayOverloaded as a possible value for the RejectionReason dimension.
  • Added a note for the HttpStatusCode dimension.
• Added the following KPIs:
  • Network Slice Specific KPIs
    • Empty [Nsi: {{ Nsi }}]
    • Empty [sNssai: {{ sNssai }}]
  • NRF Service KPIs
    • Discovery Response Size
    • NF Profile Size
• Added a note in the NRF Message Feed section to indicate that certain messages are not copied to the Data Director.
• Added a note for removing the memory based overload control in the Overload Control Based on Percentage Discards section.
• Updated the Enhanced NRF Set Based Deployment (NRF Growth) section with the following:
  • Added step 10 in to mention that NRF Growth Forwarding feature should be enabled, if forwarding is applicable and rearranged the configuration procedure.
  • Added a note in step 7 stating that one of the entries in staticNrfConfigList must contain the details of the local NRF Set.
• Removed the note added for Horizontal POD Autoscaling (HPA) from the Ingress Gateway Pod Protection section as HPA is applicable for all the NRF pods.
• Added the ONRF-DIS-DISC-E0007 error code in the NFDiscover Service Operation section.

Release 24.2.3- F98415-04, January 2025

• Updated the description of the Allow Duplicate Subscription and NRF Support For Profile Changes In Response parameters in the NF Management Options section.
• Updated the description of the Audience Type parameter in the NF Access Token Options section.
• Updated the description of the following service operations in the NRF Supported Services section:
  • Retrieval of NF list (NFListRetrieval)
  • Retrieval of NF Profiles (NFProfileRetrieval)
• Added the Use Cases for Allow Duplicate Subscriptions section to include the use cases for allowDuplicateSubscriptions parameter.
• Updated the procedure for enabling the feature in the NRF Last Known Response section.

Release 24.2.2- F98415-03, October 2024

• Updated the following in the CCA Header Validation in NRF for Access Token Service Operation section:
  • Updated the description of x5 attribute.
  • Updated the value of enabled:true to enable this feature in Managing CCA Header validation in NRF for Access Token Service Operation.
• Updated the description for the following parameters in the CCA Header section.
  • Enabled
  • Min Expiry Time
  • Sub Key
  • Validation Rule
• Added the Content-Encoding Header section as NRF supports gzipped encoding for response messages.
• Updated the Controlled Shutdown of NRF section with NRF behavior post fault recovery.

Release 24.2.1- F98415-02, September 2024

• Added the DataSetId Enhancements section for the DataSetId Enhancements feature.
• Added the ocnrf_SLF_reroutes_total metric in the NRF SLF Metrics section.
• Added the TargetSLFFqdn and PreviousSLFFqdn dimension descriptions for the ocnrf_SLF_reroutes_total metric in the NRF Metrics section.
• Updated the behavior of SLF feature, when nrfArtisan service does not receive a success response from discovery service operation in the Dynamic Selection of SLF section.
• Updated the behavior of exceptionListForMissingMandatoryParameter attribute when SUPI or GPSI values are present in the discovery query parameter in the Subscriber Location Function section.
• Updated the default value of Monitoring Interval from 100 to 1200 in the Pod Protection Options Options section.
• Added the description for the metric types in the NRF Metrics section.
• Added the description for the alert severity types in the NRF Alerts section.
• Replaced the metric type from Timer to Histogram in the following sections:
  • Ingress Gateway Metrics
  • Egress Gateway Metrics
  • NRF NF Metrics
  • NRF SLF Metrics
  • NRF Forwarding Metrics
  • Roaming Support Metrics
  • Georedundancy Metrics
  • DNS NAPTR Update Metrics
  • NRF Cache Data Metrics

Release 24.2.0- F98415-01, July 2024

• Added the following sections for the Error Log Messages Enhancements feature:
  • Added the feature overview in the Error Log Messages Enhancement section.
  • Added the Additional Error Logging and Log Subscriber Info parameters in the Logging Level Options section.
• Added the following sections for the Support for TLS 1.3 feature:
  • Added the overview of the feature in the Support for TLS section.
  • Added the NegotiatedTLSVersion and serialNumber dimensions in the NRF Metrics section.
  • Added the oc_ingressgateway_incoming_tls_connections metric in the Ingress Gateway Metrics section.
  • Added the oc_egressgateway_outgoing_tls_connections metric in the Egress Gateway Metrics section.
  • Added the security_cert_x509_expiration_seconds metric in the Common Gateway Metrics section.
  • Added the following alerts in the Support for TLS section.
    • OcnrfTLSCertificateExpireMinor
    • OcnrfTLSCertificateExpireMajor
    • OcnrfTLSCertificateExpireCritical
• Added or updated the following sections for the NFService Priority Update feature:
  • Added NFService Priority Update section to describe the functionality of the feature.
  • Updated the description of Default Load Assignment and Default Priority Assignment parameters in the General Options section.
  • Added the Service Priority Update Feature Status parameter in the NF Discovery Options section.
• Added or updated the following sections for the Rerouting SLF Requests Using Alternate SCP and Alternate SLF feature:
  • Added the Rerouting SLF Requests Using Alternate SCP and Alternate SLF section to describe the functionality of the feature.
  • Added the following parameters in the SLF Options section:
    • Maximum SLF Attempts to limit the number of SLF attempts.
    • Use Alternate SCP to allow alternate routing using SCP.
  • Added the slfFqdn dimension in the NRF Metrics section.
  • Added a note to the Maximum Hop Count parameter in the General Options section to describe the dependency with the Maximum SLF Attempts parameter.
  • Added a note to the Custom Peer Selector Enabled parameter in the Routes Configuration section to describe the dependency with the Use Alternate SCP parameter.
  • Updated the dimension list for the following metrics with slfFqdn dimension:
    • ocnrf_SLF_tx_requests_total in Table 6-128.
    • ocnrf_SLF_rx_responses_total in Table 6-129.
  • Updated the description of the ocnrf_max_slf_attempts_exhausted_total metric in the Table 6-132.
  • Updated the description of the OcnrfMaxSlfAttemptsExhausted alert.

• Added the Limiting Number of NFProfiles in NFDiscover Response section to describe how NRF limits the number of NFProfiles to be returned in the NFDiscover service operation response.
• Added the Copy Header on Gateway Error section to include the Copy Header on Gateway Error in Ingress Gateway.
• Added the details about the nrfSupportedFeatures attribute in the nrfSupportedFeatures section.
• Updated the description of the Discovery Result Load Threshold parameter to consider the NF Service load while filtering the NF Profiles using the load threshold value in the NF Discovery Options section.
• Updated the description in the Dual Stack section to mention that currently, NRF supports single stack of either IPv4 Address or IPv6 Address and not both.
• Updated the note for the NF Notify Load Threshold parameter in the NF Management Options section to indicate that it supports both partial and full NFUpdate service operations.
• Added the routes configuration details in the Egress Gateway Route Configuration for Different Deployments section to provide information about routing.
• Updated the REST API and CNC Console configuration sequence in the Overload Control Based on Percentage Discards section.
• Added the ONRF-CFG-DISCOPT-E0010 error code in the Discovery Options Configuration section.
• Updated the value of sampling period from 6000 to 200 in the Overload Control Policy Mapping section.