Guided beta casebeginnerDDS domain
The robot works on one laptop but not another
Restore discovery without moving the fleet onto the default domain.
Pairs with DDS discovery and domains in Production ROS Operations. Read the concept first, then diagnose it here.
Open repair workspaceOperator report
Both hosts run the expected nodes, but each graph shows only local participants.
Ubuntu 24.04, ROS 2 Jazzy, Cyclone DDS, containers, systemd, OpenTelemetry fleet sandbox
System boundary
Trace only the relevant path.
host A DDS participantdomain boundaryhost B DDS participant
How this lab works
You diagnose it — no command list.
Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you — finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.
Verification
Your repair must pass more than the visible symptom.
- Remote participants discovered
- Other fleet domain remains isolated
- Hidden regression behavior
- Root cause explanation