Paging metrics provide measurements at the Central Unit Control Plane (CUCP) and the Distributed Unit (DU). In a mobile network, when a device does not have any ongoing data transmissions, it enters an IDLE state to preserve battery. If new data arrives for the device, the network probes the IDLE device by sending a Paging message and the device correspondingly responds.

Example of sample Paging metrics. 
{
    "type": "Kafka-Collector",
    "instance": "KC-1",
    "timestamp": "2021-11-11T23:04:24.044000Z",
    "metricType": "Paging",
    "domain": "5G",
    "sub-domain": "vRAN",
    "properties": {
      "dataSource": "100.126.144.164:9999",
      "deviceType": "du",
      "deviceName": "du-851008008",
      "entityType": "du",
      "entityName": "du-6cdcbd97b5-8rrpt"
    },
    "metrics": {
      "PAG_NotSentToDU_SCTP_Failure": 0,
      "Paging_DiscardedNbr_DU_CellOOS": 0,
      "Paging_DiscardedNbr_DU_Mobility": 0,
      "Paging_ReceivedNbr_DU": 0,
      "PAG_DiscardedNbrCnInitiated_CU_SCTPLinkDown": 0,
      "PAG_DiscardedNbrCnInitiated_InvalidTAC": 0,
      "PAG_DiscardedNbrCnInitiated_ProtocolError": 0,
      "PAG_ReceivedNbrCnInitiated": 0
    },
    "tags": {
      "CUCPID": "851008000",
      "RUID": "851008213",
      "DUID": "851008008",
      "CellClusterId": "111",
      "kubernetes_namespace": "sdlas00082b-ns-mv-du-851008-001"
    }
  },
The following table lists the JSON definitions.
JSON Description Units
PAG_NotSentToDU_SCTP_Failure

Indicates the number of paging messages discarded at the gNB-CU which cause invalid Tracking Area Code (TAC).

Double
Paging_DiscardedNbr_DU_CellOOS

Indicates the number of paging messages discarded at the gNB-DU which cause cell out of service.

Double
Paging_DiscardedNbr_DU_Mobility

Indicates the number of paging records discarded at the gNB-DU for the paging occasion in each cell due to DU mobility.

Double
Paging_ReceivedNbr_DU

Indicates the number of paging records received by the gNB-DU for paging occasion in each cell.

Double
PAG_DiscardedNbrCnInitiated_CU_SCTPLinkDown

Indicates the number of paging messages discarded at the gNB-CU which cause Stream Control Transmission Protocol (SCTP) link down.

Double
PAG_DiscardedNbrCnInitiated_InvalidTAC

Indicates the number of paging messages discarded at the gNB-CU which cause invalid TAC.

Double
PAG_DiscardedNbrCnInitiated_ProtocolError

Indicates the number of paging messages discarded at the gNB-CU which cause protocol error.

Double
PAG_ReceivedNbrCnInitiated

Indicates the number of CN paging messages received at the gNB-CU over Next Generation (NG) interface.

Double