Skip to content
ramantyastudio
Interactive lab · Browser sandbox

Network Troubleshooting Lab

Enter device consoles, isolate the faulty configuration, repair the network, and prove that traffic is healthy.

Fictional scenario. Every address, hostname and site here is invented; IP addresses use the ranges reserved for documentation (RFC 5737).

LAB ONLINE01 · VLAN & TRUNKING± 5 MIN
01
ACTIVE CHALLENGEFinance VLAN cannot reach ERP

Finance users time out when reaching ERP after this morning’s access-switch change.

ELAPSED00:00
Live topologyPath failure detected
HealthyFaultUnknown
!Traffic stops here802.1Q trunk · Gi1/0/24
Last probe: timeout after LAB-SW-01
LAB-PC-01 · terminalSIMULATED CLI

Ramantya Virtual Lab · isolated browser environment

Select a device or type help to inspect available commands.

LAB COMPLETED

95/100

You restored Finance connectivity with a scoped trunk change and verified the full traffic path.

00:00Completion time1 commandConfiguration changes0Hints used