Flow-Based QoS Prioritization for P2P Traffic
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Solution Overview
Problem
Traditional quality of service (QoS) implementations in computer networking fail to differentiate and prioritize peer-to-peer applications, leading to insufficient performance for sensitive services like P2P TV and phone, as they are treated similarly to ordinary data and lack user-defined QoS policies, especially during network congestion.
Innovation Solution
A flow-based QoS method that allows users to define and prioritize traffic flows according to specific services using a quality of service priority table, enabling fine-grained control over Internet connection services, distinguishing between different applications and ensuring high priority for critical services by routing them based on user-defined quality of service levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional QoS implementations treat all data traffic similarly, then network management is simplified, but peer-to-peer applications cannot receive prioritized service during network congestion
Solution Approach 1:
The patent segments network traffic into different categories using flow-based identification. By creating distinct flow categories for P2P applications, real-time traffic, and ordinary data, the system can apply differentiated QoS policies to each segment while maintaining overall network management control
Solution Approach 2:
The patent implements local quality by allowing user-defined QoS policies that apply specifically to certain traffic flows or services. Users can prioritize specific applications or destinations without affecting the entire network, enabling localized quality enhancement while keeping global management simple
2Reliability
If user-defined QoS policies are implemented for fine-grained control, then service quality for specific applications improves, but system complexity increases
Solution Approach 1:
The patent enables self-service by allowing users to define their own QoS policies for their traffic flows. The system provides the framework and tools for users to self-configure priority rules, service definitions, and flow categorization without requiring complex centralized management or specialized administrator intervention
Solution Approach 2:
The patent applies preliminary action by establishing flow categorization rules and service definitions in advance. Users pre-configure which traffic patterns should receive priority treatment, and the system automatically applies these pre-defined policies during network operation, eliminating the need for complex real-time decision-making
3Ease of manufacture
If traditional traffic classification is used, then implementation is straightforward, but peer-to-peer applications are not differentiated from ordinary data
Solution Approach 1:
The patent implements dynamics by using adaptable flow-based classification that can dynamically identify and categorize P2P traffic patterns. The system can adjust to different P2P protocols and traffic characteristics while maintaining the same underlying classification mechanism, providing both simplicity and adaptability
Solution Approach 2:
The patent achieves universality by creating a multi-functional QoS framework that can handle various application types (P2P, real-time, bulk transfer) through a single flow-based classification system. The same infrastructure serves multiple QoS purposes without requiring separate specialized systems for each application type
Data Source
AI summary
A method, network, and computer program product are provided for traffic flow quality of service. A quality of service priority table is received for services defined by a user at the network, and the quality of service priority table includes quality of service levels for the services. Traffic flows are determined to correspond to packets being communicated over the network for the user. The traffic flows are mapped to services. The traffic flows are mapped to the quality of service levels for the services. The quality of service levels are assigned to the traffic flows as assigned quality of service levels corresponding to the services. Each of the traffic flows is routed over the network according to its assigned quality of service levels, respectively.