What's New in This Guide

This section lists the documentation updates for release 25.1.2xx.

Release 25.1.203-G33631-06, October 2025

• Modified the description and the expression for the Allowed Requests KPI in the Egress Gateway Pod Protection Using Rate Limiting section.
• Moved the "NRF Alert Configuration" and "NRF Alert Configuration in OCI" sections to the Oracle Communications Cloud Native Core, Network Repository Function Installation, Upgrade, and Fault Recovery Guide.
• Added Alert Configuration section to refer the Oracle Communications Cloud Native Core, Network Repository Function Installation, Upgrade, and Fault Recovery Guide for configuring the alerts.
• Updated the sample configuration in the NFService Priority Update section.

Release 25.1.202-G33631-05, October 2025

Feature Updates:

• New Features:
  • Egress Gateway Pod Protection By Rate Limiting
    • Added the Egress Gateway Pod Protection Using Rate Limiting section to describe the functionality of the feature.
    • Added the following pages in the CNC Console section:
      • Pod Protection By Rate Limiting
      • Error Code Profile
      • Congestion Level Configuration
    • Added the following metrics in the Egress Gateway Metrics section:
      • oc_egressgateway_http_request_ratelimit_values_total
      • oc_egressgateway_http_request_ratelimit_reject_chain_duration
      • oc_egressgateway_http_request_ratelimit_reject_chain_length
      • oc_egressgateway_http_request_ratelimit_denied_count_total
      • oc_egressgateway_congestion_cpu_state
      • oc_egressgateway_congestion_system_state
      • oc_egressgateway_system_state_duration_percentage
      • oc_egressgateway_congestion_level_total
      • oc_egressgateway_congestion_level_bucket_total
      • oc_egressgateway_congestion_cpu_percentage
    • Added the feature related KPIs in the Egress Gateway Pod Protection Using Rate Limiting section.
    • Added the following alerts in the Egress Gateway Pod Protection Using Rate Limiting section:
      • OcnrfEgressDiscardDueToRateLimitMajorThreshold
      • OcnrfEgressDiscardDueToRateLimitCriticalThreshold
    • Added the procedure to disable the feature in the Egress Gateway Pod Throttling section.
    • Added a note in the Egress Gateway Pod Throttling feature to indicate that NRF recommends to use the Egress Gateway Pod Protection Using Rate Limiting feature.
  • Added the NRF Capacity section to indicate that NRF supports various target TPS.
  • Modified the maximum number of supported NF Profiles from 250 to 600 in the NRF Supported Services section.
  • Added a note in the Ingress Gateway Pod Protection feature to indicate that NRF recommends to use the Ingress Gateway Pod Protection Using Rate Limiting feature.

General Updates:

• Updated the NRF Recommended Features section to include the Egress Gateway Pod Protection Using Rate Limiting feature and removed the Egress Gateway Pod Throttling feature.
• Modified the following metric names in the Ingress Gateway Pod Protection Using Rate Limiting and Ingress Gateway Metrics sections in the document:
  • oc_ingressgateway_http_request_ratelimit_reject_chain_duration_histogram_seconds to oc_ingressgateway_http_request_ratelimit_reject_chain_duration
  • oc_ingressgateway_http_request_ratelimit_reject_chain_length_histogram to oc_ingressgateway_http_request_ratelimit_reject_chain_length
  • oc_ingressgateway_congestion_cpu_percentage_bucket to oc_ingressgateway_congestion_cpu_percentage
• Modified the metric type from Histogram to Counter in the document for the oc_ingressgateway_congestion_level_bucket_total metric in the Ingress Gateway Metrics section.
• Added the log4j2_events_total metric in the Platform Metrics section.
• Added the level dimension in the document in the NRF Metrics section.
• Removed the host, port, and error_reason dimensions for the oc_ingressgateway_connection_failure_total metric in the Ingress Gateway Metrics section from the document.
• Updated the error response details for the following error codes:
  • ONRF-REG-PARTUPD-E0010 in the NFUpdate with Partial Replacement (PATCH) section.
  • ONRF-DIS-DISC-E0010 in the NFDiscover Service Operation section.
  • ONRF-CFG-GENOPT-E0010 in the NRF Configuration for General Options section.
  • ONRF-CFG-SCRNOPT-E0010 in the Screening Options Configuration section.
  • ONRF-CFG-MGMTOPT-E0010 in the Management Options Configuration section.
  • ONRF-CFG-DISCOPT-E0010 in the Discovery Options Configuration section.
  • ONRF-CFG-ACCOPT-E0010 in the Access Token Configuration section.
  • ONRF-CFG-FWDOPT-E0010 in the Forwarding Options Configuration section.
  • ONRF-CFG-SLFOPT-E0010 in the SLF Options Configuration section.
  • ONRF-CFG-GROPT-E0010 in the GeoRedundancy Options Configuration section.
  • ONRF-CFG-NPTROPT-E0010 in the NAPTR Options Configuration section.
  • ONRF-CFG-POPROPT-E0010 in the Pod Protection Options Configuration section.
  • ONRF-CFG-AUTHOPT-E0010 in the Authentication Options Configuration section.
  • ONRF-CFG-LOGOPT-E0010 in the Logging Options Configuration section.
  • ONRF-CFG-CSHTOPT-E0010 in the Control Shutdown Options Configuration section.
  • ONRF-CFG-ROAMOPT-E0010 in the Roaming Options Configuration section.
  • ONRF-CFG-GWTHOPT-E0010 in the Growth Options Configuration section.
  • ONRF-CFG-GWTHFOR-E0010 in the Growth Configuration for Forwarding section.

Release 25.1.200-G33631-03, 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 25.1.200- G33631-02, July 2025

General Updates:

• Added a note in the NRF Message Feed section to mention that the feature works in non-ASM deployment.
• Removed the upgrade and rollback impact section from the Enhanced NRF Set Based Deployment (NRF Growth) section as this section is not applicable.
• Updated the alert name in the document from OcnrfHeapUsageCrossedMajorThreshold to OcnrfHeapUsageCrossedCriticalThreshold in the OcnrfHeapUsageCrossedCriticalThreshold section.

Release 25.1.200- G33631-01, July 2025

Feature Updates

• New Features:
  • Ingress Gateway Pod Protection By Rate Limiting
    • Added the Ingress Gateway Pod Protection Using Rate Limiting section to describe the functionality of the feature.
    • Added the following pages in the CNC Console section:
      • Congestion Level Configuration
      • Pod Protection By Rate Limiting
    • Added the following dimensions for the metrics in the NRF Metrics section:
      • Allowed
      • Id
      • Action
      • RouteLevelColor
      • ActionId
      • CongestionLevel
      • Priority
      • ErrorProfile
    • Added the following metrics in the Ingress Gateway Metrics section:
      • oc_ingressgateway_http_request_ratelimit_values_total
      • oc_ingressgateway_http_request_ratelimit_reject_chain_duration_histogram_seconds
      • oc_ingressgateway_http_request_ratelimit_reject_chain_length_histogram
      • oc_ingressgateway_http_request_ratelimit_denied_count_total
      • oc_ingressgateway_congestion_cpu_state
      • oc_ingressgateway_congestion_system_state
      • oc_ingressgateway_system_state_duration_percentage
      • oc_ingressgateway_congestion_level_total
      • oc_ingressgateway_congestion_level_bucket_total
      • oc_ingressgateway_congestion_cpu_percentage_bucket
    • Added the feature related KPIs in the Ingress Gateway Pod Protection Using Rate Limiting section.
    • Added the following alerts in the Ingress Gateway Pod Protection Using Rate Limiting section:
      • OcnrfIngressDiscardDueToRateLimitMajorThreshold
      • OcnrfIngressDiscardDueToRateLimitCriticalThreshold
  • NF Profile Size Limit
    • Added the NF Profile Size Limit section to describe the functionality of the feature.
    • Added the following parameters in the NF Management Options section to enable and configure the feature using CNC Console:
      • NF Profile Limit
      • Feature Status
      • NF Profile Size Limits
      • Error Responses
    • Added the ocnrf_nfProfile_size_limit_breached metric in the NRF NF Metrics section.
    • Added the NF Profile Size Limit Breached KPI in the NRF Service KPIs section.
    • Added the following error response codes for the feature:
      • ONRF-REG-REGN-E0023 in the NF Registration Microservice section.
      • ONRF-REG-FULLUPD-E0023 in the NFUpdate with Full Replacement (PUT) section.
      • ONRF-REG-PARTUPD-E0023 in the NFUpdate with Partial Replacement (PATCH) section.
  • Writing Messages of the Same Transaction in the Same Kafka Partition

    Updated the NRF Message Feed section to describe the functionality of the feature.

• Enhancements:
  • Feature Enhancements
    • The following enhancements are made for the "Support for cnDBTier APIs in CNC Console" feature:
      • Added the cnDBTier Backup Status API in the Support for cnDBTier APIs in CNC Console section.
      • Added the cnDBTier Backup Status CNC Console parameters in the cnDBTier Backup Status section.
    • Added the feature overview of "Pod Level Traffic Rejections" in the Overload Control section.
    • Added the additional metadata sent from NRF to Data Director as part of message feed in the NRF Message Feed section.
    • Added the Log Rate Control and Rate parameters for controlling the log rates using CNC Console in the Logging Level Options section.
  • Documentation Enhancements
    • Updated the Overload Control section with the following:
      • Enhanced the existing feature description.
      • Added the service_resource_stress and service_resource_overload_level metrics in the Overload Control section.
      • 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.

General Updates:

• Removed the NF Profile Size KPI from the NRF Service KPIs section.
• Added the NF Profile Size Avg and NF Profile Size Max KPIs in the NRF Service KPIs section.
• Added the oc_ingressgateway_route_overloadcontrol_discard_total metric in the Ingress Gateway Metrics section.
• Added the LoadLevel and DiscardAction dimensions in the NRF Metrics section.
• Renamed the ocnrf_nf_profile_size_bytes metric to ocnrf_nf_profile_size in the NRF NF Metrics section.
• Added the CUSTOM_NRF_AUDIT_NF_SIZE as a possible value for the serviceOperation dimension in the NRF Cache Data Metrics section for the following metrics:
  • ocnrf_query_cds_requests_total
  • ocnrf_query_cds_responses_total
  • ocnrf_query_cds_round_trip_time_seconds
• Added a note for handling the discovery query for AMF with guami in the EmptyList in Discovery Response section.
• Updated the NRF Recommended Features section with the following mandatory features to be enabled during the NRF deployment at the production-level:
  • Pod Level Traffic Discards
  • Ingress Gateway Pod Protection Using Rate Limiting
• Updated the NRF Supported Services section with the maximum number of NFProfiles and NFSubscriptions.
• Updated the description of the Discovery Parameter Value Based Skip SLF Lookup section.
• Added a note in the DataSetId Enhancements section to indicate that DataSetId parameter is ignored for certain scenarios for the NF Profiles.
• Updated the Support for Server Header section to mention that in NRF Roaming scenarios, NRF propagates the server header received from SEPP or peer NRFs to the Consumer NF without any changes.
• 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.
• Added the ONRF-REG-PARTUPD-E0008 error code in the NFUpdate with Partial Replacement (PATCH) section.
• Added the ONRF-CFG-UNKSROP-E0902 error code in the UnSupported Media Type section.
• 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