Measurement Packet Replication for Network Path Data Collection
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Solution Overview
Problem
Current protocols for measuring network performance in modern telecommunications networks, such as IPMP, are limited by restricted packet size, which restricts the amount of data that can be collected, making it difficult to measure complex and large-scale networks effectively.
Innovation Solution
The solution involves a method and apparatus for routing measurement packets that detect whether a packet is full of data and, if not, create a replica packet to continue collecting data, allowing for more extensive network measurement by replicating and routing empty packets with updated counts and sequence numbers, enabling the collection of a complete sequence of measurement data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the packet size is restricted to ensure transmission compatibility, then transmission compatibility is improved, but the amount of data that can be collected is reduced
Solution Approach 1:
The measurement process is segmented into multiple independent packets, each carrying a portion of the total measurement data. When a packet reaches its size limit, the system divides the measurement task across multiple packets rather than requiring a single large packet, thus maintaining transmission compatibility while enabling collection of larger total data volumes.
Solution Approach 2:
Multiple measurement packets are nested within a coordinated measurement framework, where each packet contains a reference to the overall measurement sequence. This allows packets to be independently transmitted at standard sizes while collectively representing a complete measurement dataset when reassembled at the destination.
2Loss of information
If a single measurement packet collects data along the entire path, then measurement completeness is improved, but packet size increases beyond transmission limits
Solution Approach 1:
The complete measurement path is segmented into multiple packets, each collecting data for a portion of the path. The segmentation allows measurement completeness to be achieved across multiple smaller packets rather than requiring a single oversized packet, with each packet maintaining size within transmission limits.
Solution Approach 2:
The measurement approach transitions from a single-dimension solution (one large packet) to a multi-dimensional solution (multiple packets in sequence). By adding the temporal and sequential dimension to data collection, the system achieves complete path measurement while keeping individual packet sizes manageable through distributed collection across multiple transmission units.
3Quantity of substance
If measurement packets are replicated to collect more data, then data collection coverage is improved, but network resource consumption increases
Solution Approach 1:
Instead of replicating measurement packets excessively across the network, the system applies partial action by using selective replication only when necessary to achieve complete path coverage. Each packet is replicated only to the extent needed to fill measurement gaps, minimizing unnecessary network resource consumption while ensuring adequate data collection coverage.
Solution Approach 2:
The system uses controlled copying of measurement packets to create replicas that can collect additional path data. Rather than creating numerous copies, the copying is performed selectively to generate just enough replicas to achieve complete measurement coverage, thereby balancing data collection needs against network resource consumption.
Data Source
AI summary
In a packet switched network, network data can be recorded for measurement by transmitting a measurement packet across the network to store path records as it travels from an originating measurement device to a destination device. Some of the network devices located along the path traversed by the measurement packet are capable of recognizing that the measurement packet no longer has any further storage capacity for path records. The network device then copies or clones the measurement packet and erases the path record data from the original measurement packet. The original measurement packet then continues on its path to the destination address collecting further path records on the way, while the cloned packet is returned to the measurement host for processing of the path records when all cloned packets and the original measurement packet return to the measurement host.