Diameter Protocol
- The 3GPP Evolved Packet Core
- Why Change the UMTS Core
- Migration of the Core from 3GPP Rel. 4 to Rel. 8
- 3GPP EPC Architecture, Components, Interfaces and Reference Points
- IMS-based Service Delivery
- Policy and QoS
- Definitions and Attributes of QoS
- Enforcing QoS at the Bearer
- Subscriber QoS Profiles and Parameters
- Resource-based or Session-based QoS
- Multi-Domain QoS Control
- The 3GPP QoS Architecture, Components, and Reference Points
- Charging Principles
- Principles of Charging
- Generic Charging Components: OFCS; OCS; PCEF; PCRF
- Offline Charging Subsystem (OFCS): Components, Reference Points, Procedures
- Online Charging Subsystem (OCS): Components, Reference Points, Procedures
- IMS Charging
- Levels of Charging: Bearer; Subsystem; Service
- Data Correlation between Levels
- Utilization of Charging Information
- Policy and Charging Control (PCC): Components; Procedures When Roaming/Not Roaming
- Charging Procedures for Different Access Networks
- Diameter and Its Applications
- The Need for Diameter
- The Diameter Document Set
- Diameter Applications
- The 3GPP Use of Diameter
- Supporting Diameter
- Diameter Needs Network and Transport Layer Support
- TCP Usage and Its Vulnerabilities
- Stream Control Transmission Protocol (SCTP)
- Improvements over TCP
- Security at Startup, Multi-homing, and Multi-streaming
- SCTP Message Headers and Operation
- The Diameter Base Protocol (RFC 6733)
- Terminology
- Diameter Agents and Diameter Routing
- Peer Connections: Discovery, Session Establishment, Capability Exchange, Disconnection
- Failover and Fallback
- Security
- Features
- Message Structure
- Header Format
- Command Codes and Their Associated Procedures
- CER/CEA, DWR/DWA, DPR/DPA, RAR/RAA, ASR/ASA, ACR/ACA, STR/STA
- Attribute Value Pairs (AVPs)
- AVP Header
- Grouped AVPs
- Base Protocol AVPs
- Diameter Error Handling
- Decoding Diameter Messages Using Wireshark
- Offline Charging and Diameter Accounting
- Offline Charging Model
- Components: CTF, CDF, CGF
- The Rf, Ga, and Bx Reference Point
- Accounting Records and Call Detail Records
- Event-based and Session-based Charging
- Diameter Accounting Messages and AVPs
- Message Flows and Message Contents
- Understanding the AVP Parameters
- Interpreting Captured Traces over the Rf Interface
- Online Charging and the Diameter Credit Control Application (RFC 4006)
- Online Charging Model
- Components: CTF, OCF
- The Ro Reference Point
- The Online Charging Subsystem: ABMF, RF
- The Rc and Re Reference Points
- The Rating Function Operation
- The Account Balance Management Function
- Credit Control Procedures
- The Need to support CDRs in an OCS for Accountability
- Event-based and Session-based Charging
- Direct Debit and Unit Reservation
- Diameter Credit Control Application (RFC 4006)
- DCCA Messages and AVPs
- DCCA Message Flows and Message Contents
- Understanding the AVP Parameters
- LTE/SAE Charging Management Architecture
- IMS Charging Architecture and Operation
- Charging Application Message Sequence Examples
- Interpreting Captured Wireshark Traces
- Policy and Charging Control (PCC)
- 3GPP PCC Architecture
- Functions of the PCRF
- Functions of the PCEF
- Functions of the SPR
- Functions of the AF
- Policy Control Principles and Procedures
- Flow-based Charging and IMS
- Charging Rules Data
- Scenario Examples
- Interpreting Captured Wireshark PCC Messages
- Packet Data Charging
- Establishing, Modifying, and Terminating PDP Contexts
- Policy Charging Rules
- Service-based Local Policy
- Charging Operations
- Establishing Flow-based Charging
- Wrap-up
- Course Recap and Q/A
- Evaluations
