Packet ID Discontinuity Detection for Network Monitoring
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Solution Overview
Problem
Network monitoring devices face challenges in efficiently managing and controlling packet data in high-capacity networks, particularly when handling massive amounts of video and audio data, due to limited storage capacity and the need for overwriting prevention during errors.
Innovation Solution
A communication device with a network interface, packet collection, recording, and analysis units that collect, record, and analyze packets, stopping recording and retaining data when packet ID discontinuity is detected, enabling effective monitoring and error detection across multiple network points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If packet recording is continuously performed to ensure complete fault detection, then measurement precision is improved, but storage capacity is exhausted and overwriting occurs
Solution Approach 1:
The system performs preliminary actions by detecting packet ID discontinuity before storage capacity is exhausted. When a discontinuity is detected, the system proactively retains recorded packets and stops recording, preventing the overwriting of potentially important diagnostic data while avoiding unnecessary continuous recording that would consume storage capacity.
2Loss of information
If all packets are recorded to ensure complete monitoring data, then loss of information is prevented, but productivity decreases due to excessive data handling
Solution Approach 1:
The system extracts only the essential information needed for fault detection by monitoring packet ID continuity. Instead of recording all packets, it selectively retains recorded packets only when discontinuity is detected, filtering out redundant data while preserving critical diagnostic information.
Solution Approach 2:
The system discards recorded packets under normal conditions where no discontinuity is detected, reducing data handling overhead. When discontinuity is detected, it recovers and retains these recorded packets for analysis, ensuring that potentially important data is preserved only when necessary.
3Reliability
If continuous recording is performed to capture all network errors, then reliability is improved, but loss of time occurs due to processing excessive data
Solution Approach 1:
The system performs preliminary detection of packet ID discontinuity to identify potential errors before they require extensive processing. This preliminary action allows the system to retain only the specific packets surrounding the discontinuity event, avoiding the need to process and analyze all recorded packets.
Data Source
AI summary
There is provided a communication device including a network interface connected to a network, a packet collection unit configured to collect packets transmitted from the network interface and packets received by the network interface, a packet recording unit configured to select a packet to be recorded from the packets collected by the packet collection unit and to record the packet as recorded information, and a packet analysis unit configured to detect discontinuity of a packet ID of the packets collected by the packet collection unit. When the packet analysis unit detects discontinuity of a packet ID, the packet recording unit retains the recorded information that has been recorded.