Questions and Answers
Which component sends the radius accounting message to PCEF?
CRM sends a subscription request to ZTE using JSON.
False
What does PCRF send to OCS regarding policy?
Request of policy counter status reporting
The ______ sends a subscription to ZTE.
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Match the following components with their functions:
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What type of data does the session MDB store?
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What does PCRF primarily manage for users?
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Static data contains information about subscriber profiles and service subscriptions.
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QoS refers to Quality of Stability in service management.
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What is the primary function of the Policy Decision Engine (PDE)?
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What function does DPI perform in the context of bandwidth control?
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The __________ Engine drives the entire service process within the PDE.
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The function that allows certain users to access specific protocols while blocking others is called _____ Control.
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Match the following PDE sub-modules with their functions:
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Which type of data includes service subscription and subscriber profile information?
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Which of the following is an example of bandwidth allocation for a user?
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What does the PCC Rules stand for in relation to PCRF and PCEF?
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The advice of policy sub-module generates messages to inform subscribers about policy decisions.
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What are the two core modules included in the Business Process Layer?
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The primary function of URL Control is to permit or reject data flow according to specific _____ and protocol.
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Match the service types with their allocated bandwidths:
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Which function module is responsible for session management and policy decision?
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The PHUB function module is solely responsible for service statistics.
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What type of platform is the UIP function module based on?
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The main function of the system surveillance module includes _______ management.
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Match the following PCRF function modules with their primary responsibilities:
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Which PCRF function module sends notification messages when policies change?
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The SPR Data Management is used for managing ZSPR Data Management.
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Name one of the statistics analyzed by the Statistic Analysis function.
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What does PCRF stand for?
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The cancellation of policy counter status reporting goes from OCS to PCRF.
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What is the role of OLC in the network architecture?
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The network architecture regarding __________ side is presented in the project.
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Match the following elements with their descriptions:
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Which of the following components is included in the project?
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The figure presented in the project shows the network architecture related to the OCS side.
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What does the notification of policy counter status change involve?
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Study Notes
Network Topology Overview
- The network architecture focuses on the PCRF side in the IN Swap project.
- The PCRF test bed is included for network functionality testing.
Physical Connectivity
- OLC (Online Collection Server) serves as the interface between OCS and external network elements.
- Three data types are stored in the database:
- Session Data (session MDB: ODBC): Tracks online subscriber information, including policy in use and session timing.
- Static Data (PCC Rule SHM: Pcache): Contains policy definitions and behavior recognition data.
- Subscription Data (ZSPR: ODBC): Information regarding subscriber profiles and service subscriptions.
Business Process Layer
- Comprises common and customized business process packages with core modules: PDE (Policy Decision Engine) and SPR Proxy.
PDE (Policy Decision Engine)
- Central module in ZSmart Policy Manager that manages policy decisions and session handling.
- Sub-modules include:
- Flow Engine: Drives service processes.
- Session Management: Handles session lifecycle and exceptions.
- Policy Decision: Matches policies to subscriber profiles and events.
- Encoding/Decoding: Manages DCC protocol messages.
- Advice of Policy: Generates notifications for subscribers about policy changes.
- Behavior Analysis: Analyzes subscriber behavior and maps it to events.
PHUB Function Module
- Parses interaction protocols and connects PCRF with other policy-related network elements (e.g., PCEF, BBEF).
UIP Function Module
- SOA-based platform that simplifies protocol integration via adapters.
- Sends notifications for policy changes through UIP.
SPR Data Management
- Manages external SPR Access Proxy and ZSPR data.
Statistical Analysis
- Offers insights through service, alarm, and performance statistics.
System Surveillance
- Functions include:
- Topology management
- KPI collection and monitoring
- Service tracking and testing
- Log management and alarm processing
PCRF Hardware Architecture
- PCRF can adjust bandwidth based on user data usage, increasing or decreasing capacity as needed.
- Flexible policy plans can assign different bandwidths for various services (e.g., 1Mbps for HTTP, 512kbps for FTP).
Quality of Service (QoS) Control Function
- QoS management allows for specific bandwidth allocations; enforced by the PCEF using DPI (Deep Packet Inspection) for service awareness.
Access Control Function
- Gating Control: Restricts user access to certain services or protocols, blocking unauthorized data packets.
- URL Control: Enforces rules based on source/target IP addresses, controlling access to blacklisted websites universally.
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Description
Test your knowledge on the intricacies of networking, focusing on PCEF, ASN-GW, and radius accounting messages. This quiz will challenge you with questions about how these components interact in a network environment.
