Systems integration and verification · FID
Test the conversation your normal test does not cover.
The equipment works when both ends behave normally. What happens when one end sends an unexpected message? Build focused protocol tests around the real devices you need to evaluate.
For systems-integration engineers, verification teams, and specialist test-tool developers.
The situation
Two subsystems communicate over a proprietary Ethernet protocol. You have an Interface Control Document, representative traffic, or protocol knowledge, but producing a specific abnormal condition currently means changing an endpoint or building more simulation infrastructure.
A practical workflow
Define one requirement
Choose a specific behavior and its acceptance criteria. Identify the message format, relevant state, and the observation that would establish the expected device response.
Implement a focused intervention
Use FID to select the relevant traffic and attach your protocol-aware tool or reusable RIG. Develop and validate the parser, message change, or suppression logic for the protocol rather than assuming the platform already understands it.
Run against the real peers
Establish the baseline, apply the intervention, and record the endpoint response and recovery. Keep test parameters and protocol logic under version control so the procedure can be repeated after system changes.
What to record
Tie the message intervention to a requirement and an observable endpoint response. Retain the baseline, the actual traffic produced, the test-logic version, and the recovery result.
Example test plan, not measured results
Use these checks to plan a demonstration or evaluation. The observations are yours to collect; this is not a customer case study or a qualification report.
| Check | Observation to record |
|---|---|
| Baseline exchange | The real peers complete the intended normal transaction. |
| Out-of-range application field | The protocol-aware tool creates the intended test message; record the receiver response. |
| Unexpected sequence or missing message | The specified state-machine or timeout behavior is exercised and observed. |
| Restore normal traffic | The equipment returns to the behavior required by the test plan. |
What you need
- A FID appliance, the real Ethernet peers, and an authorized integration or test-lab environment.
- Protocol specifications or validated protocol knowledge, a developer for the custom test logic, and explicit acceptance criteria.
- A separate management connection. The 10 GbE Ubuntu appliance uses a third wired interface; WiFi is only available on WiFi-enabled platforms.
Before you plan the test
- The examples are test ideas requiring custom implementation, not a supplied protocol test suite. FID does not automatically interpret an ICD or invent pass/fail criteria.
- Framing, checksums, encryption, authentication, and timing constraints must be handled by the selected tool and the test design.
- This is a bench and integration-lab application, not a claim of airborne deployment, safety certification, or complete hardware-in-the-loop replacement.
- Effective throughput depends on the enabled functions, traffic, and hardware. Optional EtherShunt bypass is limited to 1 GbE.
Discuss your test setup
Start with a non-sensitive description of the setup and the behavior you need to test. Do not submit classified, controlled, or confidential protocol material through this form.
Explore another application
Insert and bypass a test tool
Switch between a direct connection and your inline test equipment. Keep the bench wired as the experiment changes.
Embedded-device securityCheck device certificate validation
Exercise the device as a TLS client and record what happens when the server certificate is wrong.