A.15 Error Code 504

Associated Error Category

Policy SBR Error

Description

ComAgent resource unavailable when sending stack event to pSBR.

Associated P-DRA Alarm/Event

Event 22704 - Communication Agent Error (refer to the DSR Alarms and KPIs Reference for details about this event)

Associated Measurement

TxPdraErrAnsGeneratedCAFailure

Associated Diameter Interface / Message Type

• Gx CCR-I, CCR-U, and CCR-T
• Rx AAR, STR
• Gx-Prime CCR-I, CCR-U, and CCR-T

GUI Configurable

Yes

Recovery

1. Check CCR-I Processing with PCRF Pool in the Error Resolution appendix of the Policy and Charging Application User Guide to investigate and understand the circumstances where the error occurs.
2. Check the Main Menu, and then Alarms & Events, and then View History and set the Display Filter by Events (in particular, 19810 - Communication Agent Egress Message Discarded, 19811 - Communication Agent Ingress Message Discarded, 19814 - Communication Agent Peer has not responded to heartbeat, 19832 - Communication Agent Reliable Transaction Failed, 19833 - Communication Agent Service Egress Message Discarded, and 22712 - Policy SBR Communication Error). Refer to the DSR Alarms and KPIs Reference for details about these events.
3. Check the PCA NOAM GUI at Main Menu, and then Policy and Charging, and then Maintenance, and then SBR Status to verify the status of the binding SBR, session SBR, and related resources/sub-resources (Resource HA Role, Congestion Level, etc.)
4. Go to Main Menu, and then Communication Agent, and then Maintenance to verify Connection Status, Routed Services Status, and HA Services Status for resolving ComAgent unavailability.