Diagnostic System TTL Monitoring Segmentation
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Solution Overview
Problem
Conventional diagnostic systems for communication networks cannot execute the TST function between MEP and MIP, limiting meticulous monitoring control, especially when MIPs operate as MEPs, leading to increased functional complexity.
Innovation Solution
A diagnostic system that includes a transmission source node generating diagnostic frames with a TTL value set for the number of hops to a relay node, and a relay node decrementing the TTL value, counting, and discarding frames with a TTL value of 0, to check continuity between the source and relay nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the TST function is executed between MEP and MIP, then monitoring precision is improved, but device complexity increases when MIPs operate as MEPs
Solution Approach 1:
The patent segments the monitoring function by introducing MIP (Maintenance Intermediate Point) as an intermediate monitoring point between MEPs. This allows the TST function to be executed in sections (MEP-MIP and MIP-MEP) rather than requiring end-to-end MEP-MEP monitoring, thereby improving monitoring precision without requiring MIPs to operate as full MEPs with complete functional complexity
Solution Approach 2:
The patent applies local quality by enabling TST function execution at specific intermediate points (MIPs) along the communication path. Instead of requiring all nodes to have full MEP functionality, only the necessary TST execution capability is provided at MIPs, allowing meticulous monitoring control while maintaining compliance with common standards and avoiding increased functional complexity
2Adaptability or versatility
If MIPs operate as MEPs to enable TST function, then monitoring control is improved, but the mounting size of functions increases
Solution Approach 1:
The monitoring function is segmented into MEP (end point) and MIP (intermediate point) roles. MIPs provide limited TST execution capability rather than full MEP functionality, enabling monitoring control improvement while keeping the functional mounting size at MIPs minimal and compliant with common standards
Solution Approach 2:
The patent makes the communication devices universal by enabling them to operate in different modes (MEP or MIP) depending on their position and configuration in the network. This multi-functionality allows the same hardware to provide monitoring control without requiring dedicated complex MEP functionality at every node
Data Source
AI summary
A transmission source node transmits diagnostic frames where a TTL value is set to the number of hops that is counted until an intermediate node. A relay node decrements the TTL value of the received diagnostic frames, counts the number of diagnostic frames where the decremented TTL value is 0, and recognizes continuity between the transmission source node and the relay node based on the number of transmitted diagnostic frames transmitted from the transmission source node and the number of diagnostic frames where the decremented TTL value is 0.