INT Telemetry Switching for Diverse Network Monitoring Scales
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Solution Overview
Problem
Conventional INT technologies struggle to adapt to diverse monitoring needs across various network scales, leading to inefficiencies in network status information collection, delayed fault detection, and increased packet loss, particularly in complex and dynamic network environments.
Innovation Solution
A hybrid sensing mechanism switching architecture based on INT, utilizing an SDN architecture with a central controller, P4 programmable switches, and units for network status collection, operation mode switching, probe frequency adjustment, and path control, enabling proactive sensing and flexible telemetry strategies tailored to different network scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional INT technologies are used for network monitoring, then real-time network status information can be collected, but the system lacks adaptability to diverse network scales and scenarios leading to inefficiencies and increased packet loss
Solution Approach 1:
The patent implements dynamic operation mode switching between in-band sensing and hop-by-hop sensing based on real-time network status detection. The system automatically transitions between different INT operation modes depending on network conditions, enabling adaptive telemetry strategies that optimize collection efficiency across diverse network scales while maintaining real-time monitoring capabilities
Solution Approach 2:
The patent dynamically adjusts key parameters including probe frequency, sensing duration, and operation mode selection based on detected network status. By changing these parameters adaptively, the system optimizes the balance between monitoring comprehensiveness and collection efficiency for different network scenarios, resolving the contradiction between adaptability and productivity
2Measurement precision
If per-packet high-precision INT monitoring is implemented, then real-time network status can be captured with high precision, but packet loss increases and network overhead grows
Solution Approach 1:
The patent implements selective per-packet monitoring only when network status indicates high precision is required, rather than continuously applying maximum monitoring intensity. This partial action approach maintains high measurement precision for critical periods while reducing overall packet loss and network overhead during normal operation
Solution Approach 2:
The system dynamically adjusts monitoring intensity by switching between different INT operation modes based on real-time network conditions. During stable periods, the system uses less intensive hop-by-hop sensing to reduce packet loss, while transitioning to per-packet sensing only when high precision is needed, thus balancing measurement quality with reliability
3Reliability
If hop-by-hop sensing is used to cover all network links, then comprehensive telemetry coverage is achieved, but sensing time increases and overhead grows
Solution Approach 1:
The patent implements dynamic switching between in-band sensing and hop-by-hop sensing based on network status detection. The system can transition between comprehensive coverage modes and time-efficient modes, allowing flexible adjustment of sensing scope and duration to match actual network monitoring needs
Solution Approach 2:
The patent implements periodic network status detection to determine when comprehensive hop-by-hop sensing is necessary versus when lighter in-band sensing suffices. This periodic evaluation enables the system to maintain telemetry coverage completeness when needed while reducing sensing time during normal operation
Data Source
AI summary
A scenario-differentiated network telemetry method is provided. The method is based on an SDN architecture, a control plane is separated from a data plane, the control plane is managed by a central controller, the data plane includes a network device to execute actual packet processing, and the central controller is utilized for decision-making across an entire network; the data plane employs a P4 programmable switch to support functions of network nodes; and units of the method include a network status collection unit, an operation mode switching unit, a probe frequency adjustment unit, and a path control unit, where the operation mode switching unit and the probe frequency adjustment unit are included in a telemetry control unit. Key issues such as achieving integration and switching of multiple INT operation modes, proactive sensing notification functions of the network nodes, and path planning based on priorities of sensing attributes are addressed