ExpertHalf day to full dayInstructor visible

Routing and Switching Expert capstone

A team needs a production-ready routing and switching design with evidence that it survives failure and rollback.

Business context

Ultiblob uses this exercise to train network administrator and infrastructure engineer candidates on realistic private-cloud lab operations rather than static videos.

Technical objective

Design, validate, document, and recover a routing and switching environment using the provided templates and checks.

Student instructions

1Open the lab workspace and review the topology map.
2Launch the required templates and wait for all provisioning checks to complete.
3Complete the configuration task in the course module.
4Run validation and capture the result for instructor review.
5Create a snapshot before any risky troubleshooting or failure exercise.

Troubleshooting

If access fails, confirm the bastion session is active and the instance is not expired.
If validation fails, inspect the lab event log before rerunning the check.
If configuration drifts, restore the latest clean snapshot and repeat the module task.

Cleanup

Export notes or reports required by the instructor.
Restore or delete temporary snapshots created during the exercise.
Use the teardown action when the module is complete or allow the TTL policy to expire the lab.

Required templates

Routing/switching simulation node - defined
Ubuntu Server 24.04 - available

Validation checks

Routing path works: Traffic follows the intended lab path and reaches the expected service.
Linux SSH reachable: SSH handshake succeeds with the issued short-lived credential.

Expected result

The lab reaches Healthy state for Routing path works, Linux SSH reachable.

Reset policy: Student can reset to the last clean snapshot; instructor can force reset from admin view. Teardown policy: Automatic teardown at TTL expiry with manual instructor override for cohorts.