Alarms and KPIs Guide Alarms and Events Policy and Charging Application (PCA) Alarms and Events (22700-22799) 22700 - Protocol Error in Diameter Requests 3.13.1 22700 - Protocol Error in Diameter Requests Event Group: PCA Description: The Diameter Request message(s) received by PCA contain protocol error(s). Severity: Info Instance: PCA, <PcaFunctionName> HA Score: Normal Throttle Seconds: 60 OID: pdraPdraProtocolErrorsInDiameterReqNotify Recovery: It is recommended to contact My Oracle Support for assistance.