CMTS Traffic Flow Prioritization for P2P Bandwidth Management
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Solution Overview
Problem
Shared data networks face challenges in managing peer-to-peer applications that consume disproportionate bandwidth and resources, leading to consumer complaints and regulatory issues when traditional methods, such as limiting bandwidth, are employed.
Innovation Solution
A system that detects peer-to-peer traffic and directs it to a lower priority service flow using detection logic, classification logic, and flow control logic, employing DOCSIS Dynamic Service Flow messaging to manage and regulate P2P traffic, ensuring it does not impact other applications by allocating it to a dedicated lower-priority service flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bandwidth is limited or eliminated for peer-to-peer applications, then network resources are protected and other applications are not impacted, but the peer-to-peer applications cannot function properly
Solution Approach 1:
The patent segments network traffic into different service flows with different priority levels. Peer-to-peer traffic is separated from other traffic and assigned to a lower priority service flow, allowing differentiated treatment without completely blocking the application.
Solution Approach 2:
The patent applies different quality characteristics to different traffic types by creating distinct service flows with different priority levels. Each service flow has customized parameters (bandwidth, latency, jitter) suited to its specific application requirements.
2Productivity
If peer-to-peer traffic is directed to lower priority service flow, then network resources are allocated more fairly, but the traffic still consumes bandwidth that could be used for other applications
Solution Approach 1:
The patent implements dynamic service flow management where bandwidth allocation is adjusted in real-time based on network conditions and traffic patterns. The system can dynamically modify priority levels and bandwidth parameters to optimize resource utilization.
Solution Approach 2:
The patent changes network parameters such as priority level, bandwidth ceiling, and queueing behavior to manage peer-to-peer traffic. By modifying these parameters dynamically, the system optimizes bandwidth allocation while maintaining application functionality.
3Ease of operation
If traditional bandwidth limiting methods are used, then consumer complaints and regulatory issues are reduced, but the applications still consume disproportionate resources
Solution Approach 1:
The patent implements feedback mechanisms where network conditions and traffic patterns are continuously monitored and used to adjust service flow parameters. This feedback loop allows the system to respond to changing conditions and optimize resource allocation dynamically.
Solution Approach 2:
The system automatically detects and classifies traffic types, and dynamically assigns them to appropriate service flows without requiring manual intervention. The network self-manages resource allocation based on detected traffic characteristics and current network conditions.
Data Source
AI summary
A cable modem termination system (CMTS) is adapted to move particular traffic flows to a different priority service flow. The CMTS includes detection logic, or is coupled to detection logic, to detect the presence of particular traffic, logic to establish a different priority service flow between a cable modem termination system and a cable modem, and flow control logic to direct a given packet on to the different priority service flow if the given packet contains information that matches one or more classifiers.