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Internet Protocol Detail Record
Internet Protocol Detail Record
Internet Protocol Detail Record
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In telecommunications, an IP Detail Record (IPDR) provides information about Internet Protocol (IP)-based service usage and other activities that can be used by operations support systems (OSSes) and business support systems (BSSes). The content of the IPDR is determined by the service provider, network/service element vendor, or any other community of users with authority for specifying the particulars of IP-based services in a given context. The IPDR specifications were originally produced by the Internet Protocol Detail Record Organization, Inc. (aka IPDR.org). In 2007, the IPDR.org organization was acquired by the TM Forum, an industry association of more than 900 global members in over 160 countries from across the converging industries of telecom, cable, media and the Internet. The IPDR specifications include requirements for IPDR collection, encoding and transport protocols to exchange IPDR records, the IPDR service specification design guidance, and several sample IPDR Service Definition documents. The IPDR specs are maintained and continue to evolve at the TM Forum Interface Program. The President/COO of IPDR was Kelly Anderson and the technical team lead of IPDR from 2004 until it was Amit Kleinmann of Amdocs.

Formation and History

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During the summer of 1999, while the communications industry was grappling with massive growth in the use of Internet Protocol-based networks for voice and data communications, a group of industry veterans formed the IPDR Organization to begin to establish standards for use in operational and business support systems used by the communications carriers.[1] Originally formed as an informal confederation of about 60 industry experts from 20 companies, including Narus, Sun Microsystems, Hewlett-Packard, AT&T and others who were active in the industry, the organization quickly matured into a formal structure, tackling a range of technical issues associated with the deployment of systems to support the growth of IP-based communications services.

By 2002, the group was involving industry specific software development companies to perform interoperability testing and encompassed working forums around five distinct tracks of industry challenges, had hired a staff, and appointed Aron Heintz as President to guide the quickly growing body of technical work being conducted within the largely volunteer organization.[2]

IPDR had also established a formal board of directors structure,[2] enlisting a range of industry experts from industry players in the United States and Canada to oversee the development of the standards and protocols being developed by the group, including Martin Demers (replaced in 2003 by Stefan Mihai) of Ace*comm, Kelly Anderson of Intrado, Mark Farmer of Amdocs, Tal Givoly of Xacct Technologies, Matthew Lucas of Telestrategies, Jeff Meyer of Hewlett-Packard, Kevin McCoy of Cisco Systems, Mike Norris of Telus, Steve O'Neal of Sprint PCS and Pankaj Patel of Convergys.

IPDR in the Cable Market

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CableLabs has included IPDR as part of the DOCSIS OSS definitions. It was first included in an ECN to the DOCSIS 1.1 operations support system interface in 2004. CableLabs has also included IPDR/SP as part of its OCAP 1.1 in 2007. IPDR has continued to be extended into DOCSIS, with major extensions in DOCSIS 3.0 and EuroDOCSIS 3.0.

IPDR in the Broadband Market

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As a result of a formal liaison established between the TM Forum and the Broadband Forum, IPDR technology was incorporated into the TR-069 family of specifications as the Bulk Data Collection technology and published in May, 2012 as TR-232.

[edit]

References

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Internet Protocol Detail Record

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The Internet Protocol Detail Record (IPDR) is a standardized, extensible data format designed for collecting, streaming, and reporting detailed usage and performance metrics in IP-based networks, with a primary focus on cable environments. It captures information such as traffic volumes, subscriber activity, service flows, and network events in a structured manner, facilitating the transfer of this data from network elements to operations support systems. Originally developed by the IPDR Organization (IPDR.org), a consortium of service providers, vendors, and integrators, the IPDR specifications were integrated into the TM Forum's standards framework following the organization's acquisition in 2007. The format adheres to definitions for data modeling, with mappings to binary encodings like eXtensible Data Record (XDR) for efficiency, and supports the IPDR Streaming Protocol (IPDR/SP) over TCP for reliable, near delivery. Key versions include IPDR Document Schema 3.5.1 and IPDR/SP 2.1, which enable both batch file transfers and event-driven streaming models, such as time-interval (minimum 15 minutes) or ad-hoc collections. IPDR plays a critical role in the (Data Over Cable Service Interface Specification) ecosystem, where it is specified in the Interfaces (OSSI) for DOCSIS 3.0, with support for usage data from versions 1.1 through 3.0, as specified by CableLabs. Generated primarily by Cable Modem Termination Systems (CMTS) or Converged Cable Access Platforms (CCAP), it records subscriber-specific details using identifiers like MAC addresses and Service Flow IDs (SFID), including metrics such as octets passed, packets passed, and QoS parameters. This enables applications like usage-based billing, where records serve as "Interim" or "Stop" updates for traffic counters; network through congestion detection; and diagnostic for issues like interference via parameters such as FrequencySpan and ResolutionBW. Beyond cable networks, IPDR has been adopted in broader telecommunications standards, including those from ATIS, ANSI, SCTE, , and recommendations like J.204 for metrics gathering in services. It supports transmission to avoid impacting primary network traffic, providing application-agnostic measurements for revenue assurance, (QoS) enforcement, (QoE) analysis, and even digital advertising based on usage patterns. With support for over 54 million users in cable deployments, IPDR enhances by simplifying integration with mediation and billing systems while ensuring through features like session redundancy and error logging.

Overview

Definition and Purpose

The Internet Protocol Detail Record (IPDR) is an extensible, vendor-neutral standardized format for capturing and reporting detailed records of IP-based service usage. Developed as a flexible , it enables the documentation of diverse network activities, such as data sessions, (VoIP) calls, and multimedia streams, across various IP ecosystems. This format supports both real-time and , allowing operators to collect structured data efficiently from network elements like routers and gateways. IPDR serves critical roles in network operations and business processes, primarily by integrating with operations support systems (OSS) for tasks like traffic engineering and performance monitoring, and business support systems (BSS) for accurate billing and revenue assurance. It also aids in fraud detection through pattern analysis of usage anomalies and supports quality of service (QoS) monitoring to evaluate metrics such as latency and throughput for IP services. These functions enhance overall network reliability and monetization without requiring proprietary implementations. In contrast to traditional Call Detail Records (CDRs), which focus on circuit-switched with fixed-duration call tracking, IPDRs address the dynamic nature of packet-based IP traffic, accommodating variable session lengths, streaming, and multifaceted data types like protocol-specific attributes. Examples of captured usage data include subscriber identifiers (e.g., MAC or user IDs), session durations, transferred data volumes, source and destination IP addresses, timestamps, and application types (e.g., web browsing or streaming). These elements provide granular, non-content-based insights into IP interactions.

Key Components

The Internet Protocol Detail Record (IPDR) employs a modular structure comprising three core components: a header, a body, and a footer. The header encapsulates essential metadata, including the record type, creation in UTC format, a unique document identifier (typically a 32-bit UTC combined with a 48-bit ), system uptime, and sequence numbers to facilitate ordering and reliability during transmission. This metadata ensures that receiving systems can contextualize the record within broader operational flows, such as in DOCSIS-based cable networks. The body forms the primary payload, capturing detailed usage information tailored to specific services, such as bytes transferred, packets sent or received, service flow identifiers, and quality-of-service metrics like octets passed or packet classifications. For instance, in environments, it may include counters for traffic or subscriber-specific data like IP addresses and MAC domains. These elements are organized using templates that minimize redundancy while supporting high-volume . The footer provides closure to the record, incorporating verification elements such as a record count, end , and checksums to confirm completeness and detect alterations. Checksums in the footer, along with sequence numbers, validate and ensure reliable delivery post-transmission. These elements collectively protect against unauthorized modifications, supporting secure usage in operational support systems. IPDR's design emphasizes extensibility through standardized schemas, allowing operators to define custom fields for diverse services without altering the core format. XML schemas, compliant with W3C specifications, enable the addition of service-specific extensions, such as VoIP signaling parameters (e.g., MGCP or SIP call details) or video streaming metrics (e.g., session data or QoS channel lists). XDR notations support binary-efficient representations for these extensions. This modularity permits customization, for example, by embedding PacketCable-defined fields for voice services or QoS objects for video delivery. Supported data types in IPDR encompass both primitive and complex structures to accommodate varied usage scenarios. Primitive types include integers (e.g., unsigned32 for counters or timestamps), strings (e.g., for hostnames or descriptions), and booleans (e.g., for interval flags). Complex structures, such as arrays or sequences, handle multi-session records, like lists of channel sets in service flows or sequences of amplitude measurements in . These types are defined within the schemas to ensure across collection and transport mechanisms. Integrity and security are integral to IPDR's architecture, with features designed to mitigate tampering and ensure reliable delivery. Sequence numbers in the header track record order, enabling detection of gaps or duplicates in . Checksums in the footer validate post-transmission. These elements collectively protect against unauthorized modifications, supporting secure usage mediation in operational support systems.

History and Development

Formation

The Internet Protocol Detail Record (IPDR) originated in 1999 as an industry initiative led by Narus in collaboration with , TeleStrategies, and approximately 19 other billing companies, network service providers, and telecommunications equipment vendors, forming an informal working group to establish a unified standard for capturing and exchanging IP usage data in operational support systems. This effort reflected broad participation from key players in the emerging IP ecosystem. The primary goals centered on standardizing the collection and of detailed usage records for IP-based services, particularly as networks transitioned from circuit-switched to packet-switched architectures, enabling accurate usage-based billing, real-time service monitoring, and network diagnostics. At the time, the rapid growth of services created a pressing need for consistent data formats to support granular, packet-level accounting across diverse provider environments. A major early challenge was the fragmentation caused by vendors' proprietary data formats, which hindered seamless interoperability and efficient data exchange between network elements and back-office systems, necessitating the working group's focus on open, vendor-neutral protocols. This lack of standardization complicated billing processes and operational analytics in the burgeoning IP service landscape. A pivotal milestone came in March 2000 with the release and ratification of the first IPDR specification draft, Network Data Management-Usage (NDM-U) Version 1.0, which introduced basic streaming capabilities tailored for collecting usage data from cable modems and supporting broadband multimedia applications.

Evolution and Standardization

The Internet Protocol Detail Record (IPDR) transitioned to a formal organizational structure with the establishment of IPDR.org in 2002, as evidenced by its assignment of an enterprise number by the Internet Assigned Numbers Authority (IANA), with Aron Heintz listed as the contact. This formalization enabled focused development of IPDR specifications for IP-based usage data collection in telecommunications networks. Amit Kleinmann served as the technical lead from 2004 to 2007, overseeing key advancements during this period. A significant milestone occurred in when IPDR specifications were referenced in CableLabs' Operations Support System Interface (OSSI) requirements, facilitating integration with cable network management. In 2006, the release of IPDR 3.0 introduced enhanced streaming capabilities through the IPDR Streaming Protocol (IPDR/SP), improving efficient export of high-volume usage data from network elements. This version built on prior encoding formats, such as IPDR/XDR v3.0, to support mediation. In May 2007, IPDR.org was acquired by the , an international industry association, integrating IPDR into the TM Forum Interface Program to promote standardized IP data management across global telecom operators. This merger expanded IPDR's scope, aligning it with broader operations support systems (OSS) and business support systems (BSS) frameworks. In 2012, the Broadband Forum adopted IPDR formatting in TR-232 for Bulk Data Collection, enabling scalable data aggregation in broadband environments. IPDR specifications continue to be maintained by the . As of 2024, IPDR is referenced in ETSI TS 132 297 as an optional protocol for charging data record (CDR) file transfer in 5G networks, supporting compatibility with mobile charging management.

Technical Specifications

Data Model and Encoding

The IPDR data model employs object-oriented schemas to represent network usage and performance data in a standardized, extensible manner. These schemas are primarily defined using Definition (XSD), which allows for the specification of complex data structures including classes for events (such as session initiations or terminations), measurements (like bandwidth utilization or packet counts), and hierarchies (encompassing relationships between network elements, subscribers, and services). This approach, derived from the Network Data Management-Usage (NDM-U) framework, ensures a consistent for diverse IP-based services while supporting interoperability across vendors and systems. Encoding options for IPDR data prioritize both readability and efficiency. IPDR/XML provides a human-readable text format that adheres directly to W3C XML and XML Schema specifications, facilitating easy parsing and debugging in development environments. In contrast, IPDR/XDR utilizes External Data Representation (XDR) for binary encoding, which enforces 32-bit alignment and compactness to optimize storage and transmission over bandwidth-constrained networks, reducing overhead compared to textual formats without sacrificing structural integrity. These encodings map directly to the underlying schemas, ensuring that data elements like timestamps, identifiers, and metrics are serialized consistently. Schema extensibility in IPDR is achieved through mechanisms, particularly namespaces, which enable the integration of vendor-specific or application-tailored extensions while maintaining with core standards. For instance, operators can extend base schemas by defining custom namespaces to incorporate additional fields, such as (QoS) metrics (e.g., latency thresholds) or geolocation attributes (e.g., subscriber position ), without altering the fundamental IPDR structure. This design promotes innovation in specialized deployments, such as cable or networks, by allowing incremental additions that conform to the IPDR Service Specification Design Guide. Validation processes ensure the integrity and compliance of IPDR data against defined schemas. For IPDR/XML, standard XML validators, such as those implementing W3C validation, parse and check documents for structural correctness, type conformance, and adherence. Binary IPDR/XDR records undergo validation via specialized parsers that verify alignment, field lengths, and sequence integrity, often incorporating sequence numbers to detect transmission errors or failovers. These processes are integral to the IPDR ecosystem, guaranteeing that encoded data remains reliable for downstream applications like billing or analytics.

Collection and Transport

IPDR data is generated in real-time by network elements such as cable modems, routers, and VoIP gateways, which capture usage metrics like bandwidth consumption and service events without relying on external polling mechanisms. This push-based approach minimizes overhead and enables efficient, event-driven or time-interval-based collection, where devices proactively stream records to designated collectors upon detecting relevant activities. The primary transport mechanism is the IPDR Streaming Protocol (IPDR/SP), a session-oriented protocol built on TCP/IP for reliable, ordered delivery of data streams. For high-volume scenarios, UDP is supported as an alternative to broadcast records to multiple collectors simultaneously, reducing bandwidth usage in multicast-enabled networks. Batch processing options include file-based transfers via FTP or SFTP, allowing aggregated IPDR documents to be sent periodically for non-real-time analysis. Reliability is ensured through features like periodic heartbeats (KEEP ALIVE messages) to monitor session health, explicit acknowledgments (DATA ACKNOWLEDGE) for confirming receipt of records, and local buffering to handle temporary network disruptions or collector unavailability. In failover scenarios, primary and secondary collectors are configured, with data redirected to the highest-priority active endpoint; configurable buffering limits prevent overflow during outages. Scalability in high-traffic environments is addressed via support for multiple concurrent sessions (up to 127 session IDs), distributed collector architectures, and load balancing to distribute streams across endpoints, ensuring the protocol handles enterprise-scale deployments without single points of failure.

Applications

In Cable Networks

In cable networks, IPDR integrates with the Data Over Cable Service Interface Specification (DOCSIS) framework, particularly through CableLabs' Operations Support System Interface (OSSI), to facilitate usage management and network operations in hybrid fiber-coaxial (HFC) architectures. IPDR was introduced for use in DOCSIS 1.1 and 2.0 OSSI specifications for the Subscriber Accounting Management Interface Specification (SAMIS) and became mandatory for Cable Modem Termination Systems (CMTS) in the DOCSIS 3.0 OSSI specifications released in 2007, for collecting subscriber usage data essential for billing. This integration was further extended in DOCSIS 3.0 and 3.1, supporting advanced features such as IPv6 addressing, channel bonding, enhanced quality of service (QoS), and multimedia services over high-speed data channels. Key use cases in cable networks leverage IPDR for monitoring the (CMTS), which aggregates traffic from cable modems and enforces bandwidth policies. For instance, IPDR enable tracking of bandwidth allocation through service flow identifiers (SFIDs) and classifier names (SCNs), allowing operators to enforce subscriber usage quotas and prevent oversubscription in downstream and upstream paths. Additionally, IPDR supports video-on-demand (VoD) tracking by capturing QoS metrics, such as dynamic service flows and packet header suppression (PHS) for efficient delivery of on-demand content at speeds up to 25 Mbit/s upstream. These capabilities rely on real-time streaming from CMTS devices using protocols like IPDR/SP, providing granular on connection events, traffic counters, and error conditions without disrupting service. IPDR incorporates custom extensions tailored to DOCSIS environments, defining specific fields for cable-specific metrics beyond standard IP usage. These include downstream and upstream modulation types (e.g., 64-QAM or 256-QAM), error rates such as uncorrectable codewords (docsIf3CmStatusUncorrectables), and signal quality indicators like receive modulation error ratio (RxMER) and carrier-to-noise and interference ratio (CNIR). Such extensions are encoded in XML schemas like -CMTS-TYPE and SAMIS-TYPE-1, enabling detailed reporting of performance and service flow statistics. In the cable market, IPDR's adaptations deliver significant benefits for HFC networks by supporting dynamic service provisioning, where operators can adjust QoS parameters in real-time based on usage patterns to optimize bandwidth efficiency. It also enhances assurance through accurate billing via precise octet and packet counts per subscriber, reducing fraud and enabling usage-based models that align with agreements (SLAs). Overall, these features promote proactive network maintenance, fault isolation, and , ensuring reliable delivery of high-speed data and services across millions of cable subscribers.

In Broadband Networks

In broadband networks, the Internet Protocol Detail Record (IPDR) standard was incorporated into the Broadband Forum's protocol through the TR-232 amendment, issued in May 2012, to enable efficient bulk data collection of usage statistics from (CPE) such as DSL modems and Optical Network Terminals (ONTs). This integration builds on the IPDR format defined by the , allowing service providers to configure and retrieve large-scale data via the CPE WAN Management Protocol (CWMP) without overwhelming device management sessions. Key applications of IPDR in fixed environments include bandwidth monitoring to track consumption patterns, enforcement of by logging restricted access attempts, and verification of (SLA) compliance in Fiber to the Home (FTTH) and (DSL) deployments. These capabilities support proactive by aggregating metrics from multiple CPE devices, enabling operators to identify trends and potential issues in real time. IPDR extensions tailored for broadband incorporate specific fields for Point-to-Point Protocol (PPP) session details, such as authentication and duration; Network Address Translation (NAT) translations to monitor address mappings in home networks; and Wi-Fi metrics, including signal strength and connected device counts in gateways. These enhancements allow for granular visibility into user sessions and connectivity, distinct from general IPDR usage in other domains. The primary advantages of IPDR in networks lie in facilitating remote diagnostics, where operators can analyze CPE-generated records to troubleshoot issues without on-site visits, and enabling personalized billing for multi-service providers by capturing detailed usage across voice, video, and services. This approach improves and reduces operational costs in large-scale fixed access infrastructures.

Emerging Use Cases

In recent years, IPDR has gained traction in detection and applications within networks, particularly for identifying anomalies in VoIP traffic and network intrusions. By analyzing real-time IPDR data, which captures details such as IP addresses, session durations, and data volumes, systems can detect patterns indicative of subscription , unauthorized access, and illegal content redistribution in next-generation networks (NGNs). For instance, discrepancies between billed usage and actual resource consumption in IPDR records enable rapid identification of fraudulent activities, improving detection rates compared to traditional methods. Additionally, IPDR supports teams in monitoring for malicious behavior, such as unusual spikes in connections to suspicious endpoints, facilitating proactive threat response and forensic investigations. Law enforcement agencies increasingly leverage IPDR for and investigations, including cyber forensics and tracking illicit activities. In probes, IPDR analysis decrypts usage patterns from encrypted applications by examining metadata like communication frequency, geolocation, and timestamps, aiding in suspect identification and . For example, India's (NIA) employs IPDR alongside tools like the NETRA platform to inspect packets and reveal behavioral anomalies in digital threats, supporting prosecutions under frameworks such as the Information Technology Act. This approach extends to specialized cases, where IPDR endpoints and timestamps help trace online activities linked to crimes like wildlife trafficking via or transactions. The integration of IPDR with big data platforms like Hadoop and Spark has enabled advanced analytics in and IoT ecosystems, focusing on and customer behavior modeling. IPDR feeds into these systems provide scalable processing of vast usage datasets, allowing models to forecast network failures—such as cable modem degradation—by correlating historical traffic patterns with temporal data. In customer analytics, IPDR combined with mobile data records supports modeling behaviors like diurnal usage distributions, optimizing and personalizing services in high-density environments. Beyond telecom, IPDR's extensible data model has been adapted for other sectors, including smart grid monitoring and enterprise network auditing. In energy systems, IPDR standards contribute to for real-time data exchange in smart grids, enabling utilities to track power flow anomalies and ensure efficient transmission. For enterprise auditing, IPDR logging supports compliance audits by providing verifiable records of network activity, helping organizations demonstrate adherence to regulatory requirements like mandates and detect policy violations through detailed traffic histories.

Standards and Governance

IPDR Organization

The IPDR Organization, known as IPDR.org, was established in early 2001 as a non-profit dedicated to developing open standards for measuring and exchanging IP-based service usage data. It operated with a structured model, including a , technical committees for specification development, and dedicated staff to support operations. The initial board, elected in 2002, comprised representatives from key industry players such as ACE*COMM, , , , and Sprint PCS. Aron Heintz served as the founding president from 2001 to 2005, guiding the organization's early efforts. Later, Kelly Anderson took on the role of president and chief operating officer, leading initiatives through the mid-2000s. The organization's core activities centered on creating technical specifications, establishing certification programs to validate compliant software implementations, and hosting industry workshops to foster adoption. These efforts aimed to standardize for next-generation services like VoIP and , reducing integration costs for network operators and vendors. Membership was open to a range of stakeholders, including (BSS) providers like and , (OSS) vendors such as ECtel and Openet, equipment manufacturers like and Marconi, and service providers including Sprint PCS and Telus. By 2005, IPDR.org had grown to more than 20 member companies, reflecting increasing industry engagement. Among its legacy contributions, IPDR.org developed the specification in 2001, which introduced XML-based encoding and for streaming usage data, enabling more flexible and interoperable exchange. This was followed by the IPDR 3.0 (NDM-U v3.1) standard in 2002, which enhanced efficiency through compact document formats suitable for high-volume data transfer, including binary representations to optimize performance over XML. These standards laid the foundation for reliable IP detail record handling across diverse networks, culminating in the organization's acquisition by the in 2007.

Integration with Broader Frameworks

In 2007, the IPDR.org organization merged with the , transitioning IPDR into the TM Forum's Interface Program (TIP) to enhance its integration within broader management frameworks. This shift aligned IPDR specifications with the TM Forum's enhanced Telecom Operations Map (eTOM) for business processes and the Shared Information/Data (SID) model for data architecture, enabling seamless incorporation into end-to-end (BSS) and Operations Support Systems (OSS) environments. By embedding IPDR within these frameworks—building on the principles of the former Next Generation Operations Systems and Software (NGOSS)—the standard supported standardized data flows for usage collection and mediation across IP-based services. Key integrations expanded IPDR's applicability in mobile and fixed networks. For instance, 3GPP Technical Specification TS 32.297 incorporates IPDR protocols for Charging Data Record (CDR) file transfer and streaming, facilitating mobile IPDR usage in Long-Term Evolution (LTE) and 5G charging architectures by defining compatible formats and transport mechanisms over the Bx reference point. Similarly, IPDR demonstrates compatibility with ETSI standards through its File Transfer Protocol (IPDR/FTP), which supports push and pull modes for secure data exchange in broadband and converged networks, ensuring interoperability with existing file-based systems. Under stewardship as of 2025, IPDR undergoes regular maintenance and programs to validate implementations against the standard, with the latest versions including IPDR Document Schema 3.5.1. These efforts align with the Open Digital Architecture (ODA), promoting modular data exchange suitable for cloud-native networks and containerized deployments. This integration has broadened IPDR's global adoption in international telecommunications, particularly by contributing to recommendations on usage metering and network data management for next-generation services, such as Recommendation J.224 (2024). Such contributions have enabled standardized metering practices across diverse ecosystems, enhancing revenue assurance and monitoring worldwide.

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