Network Loop Testing via Static Routing and Packet Filtering
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Solution Overview
Problem
Existing network testing methods, such as RFC 2544 and iPerf, require truck rolls and onsite technicians, are not instantaneous, and do not test the full path in modern networks using logical circuits and IP/MAC addresses, leading to delayed fault resolution and additional costs.
Innovation Solution
Implementing automatic loop testing through a computing system that establishes a static route, sends test data, applies filters, and presents results without physical loops, enabling real-time testing of network loops using logical circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If physical loops are used for network testing, then testing can be performed, but physical loops are not usable in modern networks that use logical circuits and IP/MAC addresses
Solution Approach 1:
The patent replaces the mechanical/physical loop testing method with a logical circuit-based testing approach. Instead of physically connecting test devices in a loop configuration, the system uses logical circuits within the network infrastructure to create test paths, substituting physical connectivity requirements with logical routing based on IP and MAC addresses.
Solution Approach 2:
The patent introduces a testing system that acts as an intermediary between the network devices under test. This system establishes logical test circuits by injecting test data packets into the network and tracking their path through multiple devices, using intermediary components to create virtual test loops without physical reconfiguration.
2Productivity
If RFC 2544 or iPerf testing is used, then network performance can be tested, but truck rolls and onsite technicians are required
Solution Approach 1:
The patent implements self-service testing capabilities where the network devices themselves participate in the testing process. The system automatically establishes test circuits, injects test data, collects performance metrics, and generates reports without requiring external technician intervention. Network devices autonomously cooperate by processing test packets and providing feedback.
Solution Approach 2:
The patent performs preliminary configuration of test parameters and test circuit establishment before actual performance testing begins. The system pre-configures logical test paths, sets up measurement parameters, and prepares data collection mechanisms in advance, eliminating the need for on-site setup activities.
3Measurement precision
If RFC 2544 or iPerf testing is used, then some network layers can be tested, but the full path is not always tested
Solution Approach 1:
The patent segments the network path into discrete testable segments by injecting test data packets at different points and tracking their progression through individual network devices. Each device or link segment can be independently tested by controlling where test packets are injected and where measurements are collected, enabling granular path coverage.
Solution Approach 2:
The patent creates a universal testing framework that can test across multiple OSI layers (2-7) using a single logical circuit testing approach. The system is designed to handle different protocol types and network configurations, providing multi-functional testing capability that adapts to various network architectures and device types.
4Loss of time
If RFC 2544 or iPerf testing is used, then network performance can be measured, but testing cannot be performed instantly and may require downtime
Solution Approach 1:
The patent implements periodic or continuous testing capabilities where test data packets are regularly injected into the network at configured intervals. This allows for ongoing monitoring of network performance and immediate detection of faults without requiring scheduled downtime, as tests can be performed continuously in the background.
Solution Approach 2:
The patent enables dynamic adjustment of test parameters such as packet rate, data size, and test intensity to optimize testing while minimizing impact on network operations. By changing test parameters, the system can perform instantaneous tests with minimal disruption or schedule more comprehensive tests during low-traffic periods.
Data Source
AI summary
Novel tools and techniques are provided for implementing automatic loop testing. In various embodiments, a computing system may receive a request to test a network loop; may establish a static route to a target test device that is part of the network loop, the route comprising the network loop to the target test device and back; may execute an automated script to test the network loop, by: sending test data at a first rate to the target test device over the route; and applying a filter to the test data returning from the target test device over the route, the filter being configured to count packets of test data that has propagated over the route and compare with the sent packets of test data, and to drop the test data from continuing to propagate through the network loop; and may present results of the test of the network loop.