What's New in This Guide

Release 24.2.8 - F83322-12, November 2025

Modified the placement of USER.ssv.excludeDnn.<Snssai> advanced settings key in the PCF Session Management.
Modified the placement of USER.ssv.excludeApns advanced settings key in theSettings.

Release 24.2.8 - F83322-11, November 2025

Added USER.ssv.excludeDnn.<Snssai> advanced settings key to PCF Session Management.
Added USER.ssv.excludeApns advanced settings key to Settings.

Release 24.2.7 - F83322-10, July 2025

There are no changes to this document in this release.

Release 24.2.6 - F83322-09, June 2025

There are no changes to this document in this release.

Release 24.2.5 - F83322-08, April 2025

Updated Error Code Dictionary with the error code dictionaries for Egress Gateway, Ingress Gateway, and NRF Client.

Release 24.2.4 - F83322-06, March 2025

Added the Traffic Segregation section to support Ingress and Egress Gateway traffic segregation in Policy.
Message Feed for SBI Monitoring
Added/updated the following sections to include details of Policy Message Feed feature:
- Added Message Feed for SBI Monitoring section to describe the Policy Message Feed feature.
- Added details of the following metrics to Ingress Gateway Metrics:
  - oc_ingressgateway_msgcopy_requests_total
  - oc_ingressgateway_msgcopy_responses_total
- Added details of the following metrics to Egress Gateway Metrics:
  - oc_egressgateway_msgcopy_requests_total
  - oc_egressgateway_msgcopy_responses_total
- Added details of the following alerts:
  - INGRESS_GATEWAY_DD_UNREACHABLE_MAJOR
  - EGRESS_GATEWAY_DD_UNREACHABLE_MAJOR
The following metrics in Pod Congestion Metrics section supports prefix and suffix:
- pod_cong_state_report
- pod_resource_congestion_state_report
Added the following Advanced keys to PCRF Core Settings for handling the race condition between Gx and Sy over two sites for CCR-U.
- DIAMETER.Gx.Update.RaceModeratorEnabled
- DIAMETER.Gx.Update.RetryOnRarRaceEventTriggers
- DIAMETER.Gx.Update.RetryAttemptsOnRarRace
- DIAMETER.Gx.Update.RetryWaitTimeOnRarRace
- DIAMETER.Gx.Update.RejectionErrorCodeOnRarRace
Added the following Advanced keys to PCRF Core Settings for handling the race condition between Gx and Sy over two sites for CCR-T.
- DIAMETER.Gx.Terminate.RaceModeratorEnabled
- DIAMETER.Gx.Terminate.RetryOnRarRaceEventTriggers
- DIAMETER.Gx.Terminate.RetryAttemptsOnRarRace
- DIAMETER.Gx.Terminate.RetryWaitTimeOnRarRace
- DIAMETER.Gx.Terminate.RejectionErrorCodeOnRarRace

Release 24.2.3 - F83322-05, January 2025

There are no changes to this document in this release.

Release 24.2.2 - F83322-04, November 2024

There are no changes to this document in this release.

Release 24.2.1 - F83322-02, October 2024

Added or updated the following sections to add details on Concurrency Handling at Bulwark Service to Reduce Processing Latency of Service Request feature:
- Added Concurrency Handling at Bulwark Service to Reduce Processing Latency of Service to describe the feature.
- Added Bulwark with the configuration details of Bulwark service.
- Added details of CONCURRENCY.LOCK_RETRY_MODE Advanced Settings key in:
  - PCF Session Management
  - PDS Settings
- Added the following metrics to Bulwark Metrics:
  - lock_response_total
  - lock_response_total
  - lock_collision_total
- Added the following alerts to List of Alerts:
Added the following sections to support prevention of excessive accumulation of requests at Undertow Worker Queue:
- Added the Support for Prevention of Requests Accumulation at Undertow Worker Queue section to describe the functionality.
- Added the following Undertow Worker Queue metrics to Undertow Server Metrics section:
  - occnp_undertow_queue_limiter_reject_request_total
  - occnp_undertow_queue_limiter_accept_request_total
  - occnp_undertow_queue_request_limiter_active_threads_count
Updated the following sections for Pod Congestion Control feature to SM Service:
- Updated the SM Service Pod Congestion Control section with CPU, Queue, and Discard Priority default values.
- Updated the Thresholds section with threshold default values for SM service.
- Updated the Load Shedding Rules section with discard priority default values for SM service.
Updated the following sections for Pod Congestion Control feature to Bulwark Service:
- Updated the Bulwark Pod Congestion Control section with configurations for enabling Congestion Control for Bulwark service.
- Updated the Settings menu with configurations for enabling Congestion Control for Bulwark service.
Added or updated the details of the following metrics in :
- ue_n1_transfer_request_total
- ue_n1_transfer_response_total
- ue_n1_subscribe_request_total
- ue_n1_subscribe_response_total

Release 24.2.0 - F83322-02, October 2024

Added/updated the following metrics in PerfInfo Metrics:
- load_level
- service_resource_stress
- service_resource_overload_level
- system_overload_threshold_config_mode
- active_overload_threshold_fetch_failed
- load_level_report_total
- service_resource_overload_level_report_total
- http_out_conn_request
- http_out_conn_response
- overload_manager_enabled
- leader_pod
Updated Support for End-to-End Log Identifier Across Policy Services with the details of the callflows and services for which end-to-end log identifier is not yet supported.

Release 24.2.0 - F83322-03, October 2024

Added/updated the following metrics in PerfInfo Metrics:
- load_level
- service_resource_stress
- service_resource_overload_level
- system_overload_threshold_config_mode
- active_overload_threshold_fetch_failed
- load_level_report_total
- service_resource_overload_level_report_total
- http_out_conn_request
- http_out_conn_response
- overload_manager_enabled
- leader_pod
Updated Support for End-to-End Log Identifier Across Policy Services with the details of the callflows and services for which end-to-end log identifier is not yet supported.

Release 24.2.0 - F83322-01, August 2024

Added details of AUDIT.HTTP2_ENABLED advanced settings key to PCF Session Management
Updated Support for Adding Reduced Capability to UEs section to mention the Adding Reduced Capability to UEs feature support for AM service and UE Policy service.
Updated Support for End-to-End Log Identifier Across Policy Services section to mention Support for End-to-End Log Identifier Across Policy Services feature support for all Policy microservices.
Updated the Support for Concurrency Handling using Bulwark Service in PCRF section with details of bulwark service in PCRF for Rx messages.
Added the Pending Transactions on Gx Interface section to describe the pending transaction on Gx interface.
Added the following sections to Support for policyDecFailureReports Attribute feature:
- Added Support for policyDecFailureReports Attribute section to describe the enhancements to error response feature.
- Added RULE.ENABLE_PCC_RULE_REMOVE_ON_FAILURE key in the Advanced Settings of PCF Session Management.
- Added occnp_feature_info_received_total metric in SM Service Metrics:
Added the following sections to Enhancements to Error Response feature:
- Added Enhancements to Error Response section to describe the enhancements to error response feature.
- Added Error Code Dictionary section to with details of the error code dictionaries for AM, UE, SM, UDR, CHF, and Binding services.
- Updated Error Handling section with details of configuring error handling functionality for AM, UE, SM, UDR, CHF, and Binding services.
- Added details of the following metrics in CNC Policy Metrics:
  - error_handler_exec_total
  - error_handler_in_total
  - error_handler_out_total
Added the following sections to describe Optimizing Database Encoding in PCRF Core service:
- Added Support for Optimizing Database Encoding in PCRF Core section to describe the database encoding in PCRF Core services.
- Added details of the following advanced settings keys to PCRF Core Settings section.
  - DB.GX.DATA.ENCODING.Enabled
  - DB.RX.DATA.ENCODING.Enabled
  - DB.SD.DATA.ENCODING.Enabled
  - DB.GX.ENCODING.MAP.Version
  - DB.RX.ENCODING.MAP.Version
  - DB.SD.ENCODING.MAP.Version
  - DB.ENCODING.MAP.LIST
- Added the following metrics to PCRF Core Metrics settings.
  - occnp_data_encoding_total
  - occnp_data_decoding_total
  - occnp_data_decoding_fail_total
  - occnp_data_encoding_size_before_total
  - occnp_data_encoding_size_after_total
Added the following sections to describe Congestion Control feature in PDS service:
- Added PDS Pod Congestion Control section to describe the pod congestion control mechanism supported by PDS service.
- Updated the Congestion Control section in CNC Console to support congestion control for PDS service.
- Added details of the following advanced settings keys to PDS Settings section:
  - PDS_NOTIFY_USER_DATA_REQUEST_PRIORITY
  - PDS_GET_DEFAULT_WORKFLOW_REQUEST_PRIORITY
  - PDS_GET_USER_DATA_REQUEST_PRIORITY
  - PDS_UPDATE_USER_DATA_REQUEST_PRIORITY
  - PDS_DELETE_USER_DATA_REQUEST_PRIORITY
  - PDS_AUDIT_NOTIFY_REQUEST_PRIORITY
  - CONGESTION_RESPONSE_CODE
- Added the following alerts in the Common Alerts section:
Added the following sections to describe Congestion Control feature in Usage Monitoring service:
- Added Usage Monitoring Pod Congestion Control section to describe the pod congestion control mechanism supported by Usage Monitoring service.
- Updated the Congestion Control section in CNC Console to support congestion control for Usage Monitoring service.
- Added details of the following fields to Configuring Usage Monitoring section to support congestion control for Usage Monitoring service:
  - UM Session Create API
  - UM Session Update API
  - UM Session Terminate API
  - UM Session Notify API
  - UM Session Audit Subscriber API
  - UM Session Search Subscriber API
  - UM Session Audit Notify API
  - Congestion Error Code
- Added the metric um_http_congestion_message_reject_total to the Pod Congestion Metrics section.
Updated the following sections to Sy SLR Enhancements for Signalling Updates and UDR Notification feature:
- Added Handling N28 and N36 Interfaces Context Information during Subscription Failures section describing the PDS service storing the context information to the database.
- Added details of the following advanced settings keys to PCRF Core service section:
  - USER.smPolicyData.createContextOnFailure
  - USER.operatorSpecificData.createContextOnFailure
- Added details of the following advanced settings keys to SM Service section:
  - USER.CREATE_CONTEXT_ON_FAILURE_SM_POLICY_DATA
  - USER.CREATE_CONTEXT_ON_FAILURE_CHF_DATA
  - USER.CREATE_CONTEXT_ON_FAILURE_OPERATOR_SPECIFIC_DATA
Added the following sections to describe Congestion Control feature in SM Service:
- Added SM Service Pod Congestion Control section to describe the pod congestion control mechanism supported by SM service.
- Updated the Congestion Control section in CNC Console to support congestion control for SM service.
- Added details of the following advanced settings keys to PCF Session Management section:
  - SM.UPDATE.EVENT.SUBS.PRIORITY
  - SM.CREATE.PRIORITY
  - SM.SUB.FAIL.NOTIFY.PRIORITY
  - SM.USER.SERVICE.NOTIFY.PRIORITY
  - SM.UPDATE_PRIORITY
  - SM.REAUTH_PRIORITY
  - SM.DELETE.PRIORITY
  - SM.POLICY.CLEANUP.PRIORITY
  - SM.APP.SESSION.CREATE.PRIORITY
  - SM.APP.SESSION.CLEANUP.PRIORITY
  - SM.AUDIT.NOTIFY.PRIORITY
  - SM.GET.APP.SESSION.PRIORITY
  - SM.GET.ASSOC.PRIORITY
  - SM.GET.SUBSCRIBER.SESSIONS.PRIORITY
  - SM.GET.ASSOC.QUERY.PRIORITY
  - CONGESTION_RESPONSE_CODE
Added Limiting the number of sessions per subscriber and DNN+SNSSAI for SM service and PCRF Core service section to Limiting the Number of Sessions to describe limiting the number of sessions for SM sessions and PCRF Core sessions.
Updated the following sections to describe GxSession database slicing for PCRF Core:
- Added Slicing in GxSession database for PCRF Core service to Support for Database Slicing to describe GxSession database slicing for PCRF Core service.
- Added details of DISTRIBUTE_GX_TRAFFIC_USING_TABLE_SLICING advanced settings key to Settings, which is used to distribute the traffic for GxSession database across all the slices.