Try to find it using only show commands (no conf t until you're sure). The Secret to Speed
The new Cisco Modeling Labs (formerly VIRL) is the gold standard. You can launch the pre-built TSHOOT topology, save a "broken" snapshot, and then reload the "working" snapshot to practice.
Use CLI "show" and "debug" commands to collect data.
Try to find it using only show commands (no conf t until you're sure). The Secret to Speed
The new Cisco Modeling Labs (formerly VIRL) is the gold standard. You can launch the pre-built TSHOOT topology, save a "broken" snapshot, and then reload the "working" snapshot to practice. How To Master Ccnp Tshoot
Use CLI "show" and "debug" commands to collect data. Try to find it using only show commands