> P-CDR Field Reference Tables
> This chapter provides reference tables for the CDR fields reported as part of P-GW CDRs (P-CDRs) generated by the system.
> A complete list of supported CDR fields is provided in the P-CDR Field Descriptions chapter of this reference guide.
> The specific CDRs reported in P-CDRs and their encoding are user-selectable via GTPP dictionaries. The use of GTPP dictionaries is configurable using the gtpp dictionary command in the Context Configuration Mode of the system’s Command Line Interface (CLI).
> This section provides information on the fields reported in P-CDRs for the GTPP dictionaries.
> Important: For more information on custom dictionaries, contact your local service representative.
> The category column in all tables use keys described in the following table.
> Dictionary Table Key

> Abbreviation | Meaning | Description
> M | Mandatory | A field that must be present in the CDR.
> C | Conditional | A field that must be present in a CDR if certain conditions are met.
> O | Operator Provisionable: Mandatory | A field that an operator has provisioned and must be included in the CDR for all conditions.
> O | Operator Provisionable: Conditional | A field that an operator has provisioned that must included in the CDR if certain conditions are met.

> ‌
> CDR Fields Supported in P-CDRs
> The table in this section lists the P-CDR fields present in the available GTPP dictionaries.
> custom24, custom40, and custom42 Dictionaries
> P-CDR fields are based on 3GPP TS 32.298 V8.5.0.

> Field | Category | Description
> Record Type | M | P-GW IP CAN bearer record
> Served IMSI | M | IMSI of the served party (if Anonymous Access Indicator is FALSE or not supplied)
> P-GW Address | M | The control plane IP address of the P-GW used.
> Charging ID | M | IP CAN bearer identifier used to identify this IP CAN bearer in different records created by PCNs
> Serving Node Address | M | List of serving node control plane IP addresses (e.g. SGSN, MME, etc.) used during this record.
> Access Point Name Network Identifier | O | The logical name of the connected access point to the external packet data network (network identifier part of APN).
> PDP/PDN Type | O | Indicates PDP type (IP, PPP, or IHOSS:OSP) or PDN type (IPv4, IPv6, or IPv4v6).
> Served PDP/PDN Address | O | IP address allocated for the PDP context / PDN connection (IPv4 or IPv6), if available.
> Dynamic Address Flag | O | Indicates whether served PDP/PDN address is dynamic, which is allocated during IP CAN bearer activation, initial attach (E-UTRAN or over S2x) and UE requested PDN connectivity. This field is missing if address is static.
> Record Opening Time | M | Time stamp when IP CAN bearer is activated in this S-GW or record opening time on subsequent partial records.
> Duration | M | Duration of this record in the S-GW.
> Cause for Record Closing | M | The reason for the release of record from this P-GW.
> Diagnostics | O | A more detailed reason for the release of the connection.
> Record Sequence Number | C | Partial record sequence number, only present in case of partial records.
> Node ID | O | Name of the recording entity.
> Local Record Sequence Number | O | Consecutive record number created by this node. The number is allocated sequentially including all CDR types.
> APN Selection Mode | O | An index indicating how the APN was selected.
> Served MSISDN | O | The primary MSISDN of the subscriber.
> Charging Characteristics | M | The Charging Characteristics applied to the IP CAN bearer.
> Charging Characteristics Selection Mode | O | Information about how Charging Characteristics were selected.
> Serving Node PLMN Identifier | O | Serving node PLMN Identifier (MCC and MNC) used during this record, if available.
> Served IMEISV | O | IMEISV of the ME, if available.
> RAT Type | O | Indicates the Radio Access Technology (RAT) type currently used by the Mobile Station, when available.
> MS Time Zone | O | Indicates the offset between universal time and local time in steps of 15 minutes where the MS currently resides.
> User Location Information | O | Contains the User Location Information of the MS as defined in TS 29.060 [203] for GPRS case, and in TS 29.274 [210] for EPC case, if available.
> List of Service Data | O | List of changes in charging conditions for all service data flows within this IP CAN bearer categorized per rating group or per combination of the rating group and service id.
> Data Service Volume Block | O | Service data container associated with a service condition change on a service data flow (categorized per rating group or per combination of the rating group and service id) within this IP CAN bearer.
> Rating Group | O | Service flow identity, also known as content-id.
> Charging Rulebase Name | O | Name of the Rulebase used for charging.
> Local Sequence Number (LOSD) | O | Service data container sequence number.
> Time of First Usage | O | Timestamp for the first IP packet to be transmitted for the service data flow.
> Time of Last Usage | O | Timestamp for the last IP packet to be transmitted for the service data flow.
> Time Usage | O | Difference in seconds, within range of 0 to 4294967295, between “time of first usage” and “time of last usage”.
> Service Condition Change | O | Reason for closing the service data container.
> QoS Information Negotiated | O | Authorized QoS for the IP-CAN bearer.
> Serving Node Address (LOSD) | O | IP address of the serving node (SGSN/S-GW) control plane.
> Data Volume FBC Uplink | O | Number of octets received in the uplink direction for this container.
> Data Volume FBC Downlink | O | Number of octets transmitted in the downlink direction for this container.
> Time of Report | O | Timestamp defining the moment when the service data container is closed.
> Service Identifier | O | Identifier for a service.
> User Location Information (LOSD) | O | Location of the user known at the time when container is created.
> Serving node Type | M | List of serving node types in control plane. The serving node types listed here map to the serving node addresses listed in the field “Serving node Address” in sequence.
> Served MNNAI | O | Mobile Node Identifier in NAI format (based on IMSI), if available.
> P-GW PLMN Identifier | O | PLMN identifier (MCC MNC) of the P-GW.
> Start Time | O | The time when User IP-CAN session starts, available in the CDR for the first bearer in an IP-CAN session.
> Stop Time | O | The time when User IP-CAN session is terminated, available in the CDR for the last bearer in an IP-CAN session .
> PDN Connection Id | O | PDN connection (IP-CAN session) identifier to identify different records belonging to same PDN connection.

> ‌
> Notes:

> • | For custom40 dictionary, the following specifications are recommended:

> • | Diagnostics field is mandated to be present in the final P-CDRs.

> • | managementIntervention is not set as the cause for record closing (CauseForRecordClosing).

> • | Duration of P-CDRs will be calculated first and then round-off mechanism will be applied.

> • | “Service Identifier” sub-field will not be included in List of Service Data Volume (LOSDV) containers.

> • | In the case of custom40 GTPP dictionary, the following two values are also supported for the P-CDR field “Charging Characteristics Selection Mode” in addition to the standard values as in the custom24 GTPP dictionary.

> • | AAASupplied (6)

> • | GWOverride (7)

> • | custom42: This customer-specific file format contains P-CDRs that are encoded in ASCII format.

> • | For custom42 dictionary, Record Sequence Number is 12 byte ASCII value and last 2 bytes will always be zero.

> • | In the case of custom42 dictionary, P-CDR is closed as the final record of a subscriber session for the following events:

> • | Detach Request received from UE

> • | Delete bearer context request received from SGW.

> • | Manual subscriber clearing

> • | Abnormal Releases such as path failures

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